Visual Basic.NET - Duda con respecto a una excepción.

 
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Duda con respecto a una excepción.

Publicado por Felipe (6 intervenciones) el 13/01/2021 14:59:46
Buenos días chicos saludos cordiales, tengo este problema soy algo nuevo en Visual Basic. Net
quizá me podrían ayudar con este problemita que me sale cuando quiero imprimir, pues doy click en el botón que generé el informe para imprimir. y por ende me debería abrir el informe pero me lleva a esta excepción.

System.NullReferenceException: 'Referencia a objeto no establecida como instancia de un objeto.'
sisventas.Frmreportecomprobante.dbventasDataSet1.get devolvió Nothing.


Anexo a continuación el Código donde me sale la excepción
.

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Public Class Frmreportecomprobante
 
    Private Sub Frmreportecomprobante_Load(sender As Object, e As EventArgs) Handles MyBase.Load
 
        Try
                generar_comprobanteTableAdapter.Fill(dbventasDataSet1.generar_comprobante,
                idventa:=txtidventa.Text)
                ReportViewer1.RefreshReport()
        Catch ex As Exception
                ReportViewer1.RefreshReport()
        End Try
 
               ReportViewer2.RefreshReport
    End Sub
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Ha aumentado 1 puesto en Visual Basic.NET (en relación al último mes)
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Publicado por Yamil Bracho (631 intervenciones) el 13/01/2021 15:41:32
Checa si dbventasDataSet1 esta instanciado o si es un elemento en tu formulario referncialo de alli...
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Publicado por Felipe (6 intervenciones) el 13/01/2021 16:02:10
Hola muchas gracias por su respuesta señor Yamil , le informo que es un elemento en mi formulario el cual tiene este codigo.


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Private Sub Btnimprimir_Click(sender As Object, e As EventArgs) Handles btnimprimir.Click
        Frmreportecomprobante.txtidventa = txtidventa
        Frmreportecomprobante.ShowDialog()
 
End Sub

quisiera saber que me hace falta para que me visualice el informe.

de antemano muy muy agradecido
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Publicado por Phil Rob (1555 intervenciones) el 13/01/2021 20:03:57
Hola,

Generalmente, cuando obtienes este error, este es por que utilizas un variable de un tipo objeto sin haber declarado con New.

Por ejemplo :

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' Este codigo da el mismo error
Dim  Obj As OleDbCommand
' ... ... ...
Obj.Connection = MiConnexion
 
 
' Este codigo da ninguno error
Dim  Obj As New OleDbCommand
' ... ... ...
Obj.Connection = MiConnexion
 
 
' Este codigo da ninguno error
Dim  Obj As OleDbCommand
' ... ... ...
Obj = New OleDbCommand
Obj.Connection = MiConnexion

Pregunta : que es txtidventa ? Si este es un TextBox, debes escribir ... txtidventa = txtidventa.Text

Espero te dar una buena idea ...
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Ha aumentado su posición en 10 puestos en Visual Basic.NET (en relación al último mes)
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Duda con respecto a una excepción.

Publicado por Felipe (6 intervenciones) el 18/01/2021 16:20:44
Hola Phil Rob e intentado tu método y no me ha sido posible la visualización del informe o reporte. me saca la misma excepción voy a seguir investigando porque creo que no estoy instanciando como debe ser .. de antemano muy agradecido por su valioso aporte.

anexo el código del dbventasDataSet1 por si logran visualizar algo que yo no. reitero muchas gracias . !!


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Option Strict Off
Option Explicit On
 
 
'''<summary>
'''Represents a strongly typed in-memory cache of data.
'''</summary>
<Global.System.Serializable(),  _
Global.System.ComponentModel.DesignerCategoryAttribute("code"),  _
Global.System.ComponentModel.ToolboxItem(true),  _
Global.System.Xml.Serialization.XmlSchemaProviderAttribute("GetTypedDataSetSchema"),  _
Global.System.Xml.Serialization.XmlRootAttribute("dbventasDataSet1"),  _
Global.System.ComponentModel.Design.HelpKeywordAttribute("vs.data.DataSet")>  _
Partial Public Class dbventasDataSet1
Inherits Global.System.Data.DataSet
 
Private tablecategoria As categoriaDataTable
 
Private tablecliente As clienteDataTable
 
Private tabledetalle_venta As detalle_ventaDataTable
 
Private tableproducto As productoDataTable
 
Private tableusuario As usuarioDataTable
 
Private tableventa As ventaDataTable
 
Private tablegenerar_comprobante As generar_comprobanteDataTable
 
Private tablemostrar_categoria As mostrar_categoriaDataTable
 
Private tablemostrar_cliente As mostrar_clienteDataTable
 
Private tablemostrar_detalle_venta As mostrar_detalle_ventaDataTable
 
Private tablemostrar_producto As mostrar_productoDataTable
 
Private tablemostrar_venta As mostrar_ventaDataTable
 
Private relationFK_detalle_venta_producto As Global.System.Data.DataRelation
 
Private relationFK_detalle_venta_ventas As Global.System.Data.DataRelation
 
Private relationFK_producto_categoria As Global.System.Data.DataRelation
 
Private relationFK_ventas_cliente As Global.System.Data.DataRelation
 
Private _schemaSerializationMode As Global.System.Data.SchemaSerializationMode = Global.System.Data.SchemaSerializationMode.IncludeSchema
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Public Sub New()
    MyBase.New
    Me.BeginInit
    Me.InitClass
    Dim schemaChangedHandler As Global.System.ComponentModel.CollectionChangeEventHandler = AddressOf Me.SchemaChanged
    AddHandler MyBase.Tables.CollectionChanged, schemaChangedHandler
    AddHandler MyBase.Relations.CollectionChanged, schemaChangedHandler
    Me.EndInit
End Sub
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Protected Sub New(ByVal info As Global.System.Runtime.Serialization.SerializationInfo, ByVal context As Global.System.Runtime.Serialization.StreamingContext)
    MyBase.New(info, context, false)
    If (Me.IsBinarySerialized(info, context) = true) Then
        Me.InitVars(false)
        Dim schemaChangedHandler1 As Global.System.ComponentModel.CollectionChangeEventHandler = AddressOf Me.SchemaChanged
        AddHandler Me.Tables.CollectionChanged, schemaChangedHandler1
        AddHandler Me.Relations.CollectionChanged, schemaChangedHandler1
        Return
    End If
    Dim strSchema As String = CType(info.GetValue("XmlSchema", GetType(String)),String)
    If (Me.DetermineSchemaSerializationMode(info, context) = Global.System.Data.SchemaSerializationMode.IncludeSchema) Then
        Dim ds As Global.System.Data.DataSet = New Global.System.Data.DataSet()
        ds.ReadXmlSchema(New Global.System.Xml.XmlTextReader(New Global.System.IO.StringReader(strSchema)))
        If (Not (ds.Tables("categoria")) Is Nothing) Then
            MyBase.Tables.Add(New categoriaDataTable(ds.Tables("categoria")))
        End If
        If (Not (ds.Tables("cliente")) Is Nothing) Then
            MyBase.Tables.Add(New clienteDataTable(ds.Tables("cliente")))
        End If
        If (Not (ds.Tables("detalle_venta")) Is Nothing) Then
            MyBase.Tables.Add(New detalle_ventaDataTable(ds.Tables("detalle_venta")))
        End If
        If (Not (ds.Tables("producto")) Is Nothing) Then
            MyBase.Tables.Add(New productoDataTable(ds.Tables("producto")))
        End If
        If (Not (ds.Tables("usuario")) Is Nothing) Then
            MyBase.Tables.Add(New usuarioDataTable(ds.Tables("usuario")))
        End If
        If (Not (ds.Tables("venta")) Is Nothing) Then
            MyBase.Tables.Add(New ventaDataTable(ds.Tables("venta")))
        End If
        If (Not (ds.Tables("generar_comprobante")) Is Nothing) Then
            MyBase.Tables.Add(New generar_comprobanteDataTable(ds.Tables("generar_comprobante")))
        End If
        If (Not (ds.Tables("mostrar_categoria")) Is Nothing) Then
            MyBase.Tables.Add(New mostrar_categoriaDataTable(ds.Tables("mostrar_categoria")))
        End If
        If (Not (ds.Tables("mostrar_cliente")) Is Nothing) Then
            MyBase.Tables.Add(New mostrar_clienteDataTable(ds.Tables("mostrar_cliente")))
        End If
        If (Not (ds.Tables("mostrar_detalle_venta")) Is Nothing) Then
            MyBase.Tables.Add(New mostrar_detalle_ventaDataTable(ds.Tables("mostrar_detalle_venta")))
        End If
        If (Not (ds.Tables("mostrar_producto")) Is Nothing) Then
            MyBase.Tables.Add(New mostrar_productoDataTable(ds.Tables("mostrar_producto")))
        End If
        If (Not (ds.Tables("mostrar_venta")) Is Nothing) Then
            MyBase.Tables.Add(New mostrar_ventaDataTable(ds.Tables("mostrar_venta")))
        End If
        Me.DataSetName = ds.DataSetName
        Me.Prefix = ds.Prefix
        Me.Namespace = ds.Namespace
        Me.Locale = ds.Locale
        Me.CaseSensitive = ds.CaseSensitive
        Me.EnforceConstraints = ds.EnforceConstraints
        Me.Merge(ds, false, Global.System.Data.MissingSchemaAction.Add)
        Me.InitVars
    Else
        Me.ReadXmlSchema(New Global.System.Xml.XmlTextReader(New Global.System.IO.StringReader(strSchema)))
    End If
    Me.GetSerializationData(info, context)
    Dim schemaChangedHandler As Global.System.ComponentModel.CollectionChangeEventHandler = AddressOf Me.SchemaChanged
    AddHandler MyBase.Tables.CollectionChanged, schemaChangedHandler
    AddHandler Me.Relations.CollectionChanged, schemaChangedHandler
End Sub
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0"),  _
 Global.System.ComponentModel.Browsable(false),  _
 Global.System.ComponentModel.DesignerSerializationVisibility(Global.System.ComponentModel.DesignerSerializationVisibility.Content)>  _
Public ReadOnly Property categoria() As categoriaDataTable
    Get
        Return Me.tablecategoria
    End Get
End Property
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0"),  _
 Global.System.ComponentModel.Browsable(false),  _
 Global.System.ComponentModel.DesignerSerializationVisibility(Global.System.ComponentModel.DesignerSerializationVisibility.Content)>  _
Public ReadOnly Property cliente() As clienteDataTable
    Get
        Return Me.tablecliente
    End Get
End Property
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0"),  _
 Global.System.ComponentModel.Browsable(false),  _
 Global.System.ComponentModel.DesignerSerializationVisibility(Global.System.ComponentModel.DesignerSerializationVisibility.Content)>  _
Public ReadOnly Property detalle_venta() As detalle_ventaDataTable
    Get
        Return Me.tabledetalle_venta
    End Get
End Property
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0"),  _
 Global.System.ComponentModel.Browsable(false),  _
 Global.System.ComponentModel.DesignerSerializationVisibility(Global.System.ComponentModel.DesignerSerializationVisibility.Content)>  _
Public ReadOnly Property producto() As productoDataTable
    Get
        Return Me.tableproducto
    End Get
End Property
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0"),  _
 Global.System.ComponentModel.Browsable(false),  _
 Global.System.ComponentModel.DesignerSerializationVisibility(Global.System.ComponentModel.DesignerSerializationVisibility.Content)>  _
Public ReadOnly Property usuario() As usuarioDataTable
    Get
        Return Me.tableusuario
    End Get
End Property
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0"),  _
 Global.System.ComponentModel.Browsable(false),  _
 Global.System.ComponentModel.DesignerSerializationVisibility(Global.System.ComponentModel.DesignerSerializationVisibility.Content)>  _
Public ReadOnly Property venta() As ventaDataTable
    Get
        Return Me.tableventa
    End Get
End Property
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0"),  _
 Global.System.ComponentModel.Browsable(false),  _
 Global.System.ComponentModel.DesignerSerializationVisibility(Global.System.ComponentModel.DesignerSerializationVisibility.Content)>  _
Public ReadOnly Property generar_comprobante() As generar_comprobanteDataTable
    Get
        Return Me.tablegenerar_comprobante
    End Get
End Property
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0"),  _
 Global.System.ComponentModel.Browsable(false),  _
 Global.System.ComponentModel.DesignerSerializationVisibility(Global.System.ComponentModel.DesignerSerializationVisibility.Content)>  _
Public ReadOnly Property mostrar_categoria() As mostrar_categoriaDataTable
    Get
        Return Me.tablemostrar_categoria
    End Get
End Property
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0"),  _
 Global.System.ComponentModel.Browsable(false),  _
 Global.System.ComponentModel.DesignerSerializationVisibility(Global.System.ComponentModel.DesignerSerializationVisibility.Content)>  _
Public ReadOnly Property mostrar_cliente() As mostrar_clienteDataTable
    Get
        Return Me.tablemostrar_cliente
    End Get
End Property
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0"),  _
 Global.System.ComponentModel.Browsable(false),  _
 Global.System.ComponentModel.DesignerSerializationVisibility(Global.System.ComponentModel.DesignerSerializationVisibility.Content)>  _
Public ReadOnly Property mostrar_detalle_venta() As mostrar_detalle_ventaDataTable
    Get
        Return Me.tablemostrar_detalle_venta
    End Get
End Property
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0"),  _
 Global.System.ComponentModel.Browsable(false),  _
 Global.System.ComponentModel.DesignerSerializationVisibility(Global.System.ComponentModel.DesignerSerializationVisibility.Content)>  _
Public ReadOnly Property mostrar_producto() As mostrar_productoDataTable
    Get
        Return Me.tablemostrar_producto
    End Get
End Property
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0"),  _
 Global.System.ComponentModel.Browsable(false),  _
 Global.System.ComponentModel.DesignerSerializationVisibility(Global.System.ComponentModel.DesignerSerializationVisibility.Content)>  _
Public ReadOnly Property mostrar_venta() As mostrar_ventaDataTable
    Get
        Return Me.tablemostrar_venta
    End Get
End Property
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0"),  _
 Global.System.ComponentModel.BrowsableAttribute(true),  _
 Global.System.ComponentModel.DesignerSerializationVisibilityAttribute(Global.System.ComponentModel.DesignerSerializationVisibility.Visible)>  _
Public Overrides Property SchemaSerializationMode() As Global.System.Data.SchemaSerializationMode
    Get
        Return Me._schemaSerializationMode
    End Get
    Set
        Me._schemaSerializationMode = value
    End Set
End Property
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0"),  _
 Global.System.ComponentModel.DesignerSerializationVisibilityAttribute(Global.System.ComponentModel.DesignerSerializationVisibility.Hidden)>  _
Public Shadows ReadOnly Property Tables() As Global.System.Data.DataTableCollection
    Get
        Return MyBase.Tables
    End Get
End Property
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0"),  _
 Global.System.ComponentModel.DesignerSerializationVisibilityAttribute(Global.System.ComponentModel.DesignerSerializationVisibility.Hidden)>  _
Public Shadows ReadOnly Property Relations() As Global.System.Data.DataRelationCollection
    Get
        Return MyBase.Relations
    End Get
End Property
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Protected Overrides Sub InitializeDerivedDataSet()
    Me.BeginInit
    Me.InitClass
    Me.EndInit
End Sub
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Public Overrides Function Clone() As Global.System.Data.DataSet
    Dim cln As dbventasDataSet1 = CType(MyBase.Clone,dbventasDataSet1)
    cln.InitVars
    cln.SchemaSerializationMode = Me.SchemaSerializationMode
    Return cln
End Function
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Protected Overrides Function ShouldSerializeTables() As Boolean
    Return false
End Function
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Protected Overrides Function ShouldSerializeRelations() As Boolean
    Return false
End Function
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Protected Overrides Sub ReadXmlSerializable(ByVal reader As Global.System.Xml.XmlReader)
    If (Me.DetermineSchemaSerializationMode(reader) = Global.System.Data.SchemaSerializationMode.IncludeSchema) Then
        Me.Reset
        Dim ds As Global.System.Data.DataSet = New Global.System.Data.DataSet()
        ds.ReadXml(reader)
        If (Not (ds.Tables("categoria")) Is Nothing) Then
            MyBase.Tables.Add(New categoriaDataTable(ds.Tables("categoria")))
        End If
        If (Not (ds.Tables("cliente")) Is Nothing) Then
            MyBase.Tables.Add(New clienteDataTable(ds.Tables("cliente")))
        End If
        If (Not (ds.Tables("detalle_venta")) Is Nothing) Then
            MyBase.Tables.Add(New detalle_ventaDataTable(ds.Tables("detalle_venta")))
        End If
        If (Not (ds.Tables("producto")) Is Nothing) Then
            MyBase.Tables.Add(New productoDataTable(ds.Tables("producto")))
        End If
        If (Not (ds.Tables("usuario")) Is Nothing) Then
            MyBase.Tables.Add(New usuarioDataTable(ds.Tables("usuario")))
        End If
        If (Not (ds.Tables("venta")) Is Nothing) Then
            MyBase.Tables.Add(New ventaDataTable(ds.Tables("venta")))
        End If
        If (Not (ds.Tables("generar_comprobante")) Is Nothing) Then
            MyBase.Tables.Add(New generar_comprobanteDataTable(ds.Tables("generar_comprobante")))
        End If
        If (Not (ds.Tables("mostrar_categoria")) Is Nothing) Then
            MyBase.Tables.Add(New mostrar_categoriaDataTable(ds.Tables("mostrar_categoria")))
        End If
        If (Not (ds.Tables("mostrar_cliente")) Is Nothing) Then
            MyBase.Tables.Add(New mostrar_clienteDataTable(ds.Tables("mostrar_cliente")))
        End If
        If (Not (ds.Tables("mostrar_detalle_venta")) Is Nothing) Then
            MyBase.Tables.Add(New mostrar_detalle_ventaDataTable(ds.Tables("mostrar_detalle_venta")))
        End If
        If (Not (ds.Tables("mostrar_producto")) Is Nothing) Then
            MyBase.Tables.Add(New mostrar_productoDataTable(ds.Tables("mostrar_producto")))
        End If
        If (Not (ds.Tables("mostrar_venta")) Is Nothing) Then
            MyBase.Tables.Add(New mostrar_ventaDataTable(ds.Tables("mostrar_venta")))
        End If
        Me.DataSetName = ds.DataSetName
        Me.Prefix = ds.Prefix
        Me.Namespace = ds.Namespace
        Me.Locale = ds.Locale
        Me.CaseSensitive = ds.CaseSensitive
        Me.EnforceConstraints = ds.EnforceConstraints
        Me.Merge(ds, false, Global.System.Data.MissingSchemaAction.Add)
        Me.InitVars
    Else
        Me.ReadXml(reader)
        Me.InitVars
    End If
End Sub
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Protected Overrides Function GetSchemaSerializable() As Global.System.Xml.Schema.XmlSchema
    Dim stream As Global.System.IO.MemoryStream = New Global.System.IO.MemoryStream()
    Me.WriteXmlSchema(New Global.System.Xml.XmlTextWriter(stream, Nothing))
    stream.Position = 0
    Return Global.System.Xml.Schema.XmlSchema.Read(New Global.System.Xml.XmlTextReader(stream), Nothing)
End Function
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Friend Overloads Sub InitVars()
    Me.InitVars(true)
End Sub
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Friend Overloads Sub InitVars(ByVal initTable As Boolean)
    Me.tablecategoria = CType(MyBase.Tables("categoria"),categoriaDataTable)
    If (initTable = true) Then
        If (Not (Me.tablecategoria) Is Nothing) Then
            Me.tablecategoria.InitVars
        End If
    End If
    Me.tablecliente = CType(MyBase.Tables("cliente"),clienteDataTable)
    If (initTable = true) Then
        If (Not (Me.tablecliente) Is Nothing) Then
            Me.tablecliente.InitVars
        End If
    End If
    Me.tabledetalle_venta = CType(MyBase.Tables("detalle_venta"),detalle_ventaDataTable)
    If (initTable = true) Then
        If (Not (Me.tabledetalle_venta) Is Nothing) Then
            Me.tabledetalle_venta.InitVars
        End If
    End If
    Me.tableproducto = CType(MyBase.Tables("producto"),productoDataTable)
    If (initTable = true) Then
        If (Not (Me.tableproducto) Is Nothing) Then
            Me.tableproducto.InitVars
        End If
    End If
    Me.tableusuario = CType(MyBase.Tables("usuario"),usuarioDataTable)
    If (initTable = true) Then
        If (Not (Me.tableusuario) Is Nothing) Then
            Me.tableusuario.InitVars
        End If
    End If
    Me.tableventa = CType(MyBase.Tables("venta"),ventaDataTable)
    If (initTable = true) Then
        If (Not (Me.tableventa) Is Nothing) Then
            Me.tableventa.InitVars
        End If
    End If
    Me.tablegenerar_comprobante = CType(MyBase.Tables("generar_comprobante"),generar_comprobanteDataTable)
    If (initTable = true) Then
        If (Not (Me.tablegenerar_comprobante) Is Nothing) Then
            Me.tablegenerar_comprobante.InitVars
        End If
    End If
    Me.tablemostrar_categoria = CType(MyBase.Tables("mostrar_categoria"),mostrar_categoriaDataTable)
    If (initTable = true) Then
        If (Not (Me.tablemostrar_categoria) Is Nothing) Then
            Me.tablemostrar_categoria.InitVars
        End If
    End If
    Me.tablemostrar_cliente = CType(MyBase.Tables("mostrar_cliente"),mostrar_clienteDataTable)
    If (initTable = true) Then
        If (Not (Me.tablemostrar_cliente) Is Nothing) Then
            Me.tablemostrar_cliente.InitVars
        End If
    End If
    Me.tablemostrar_detalle_venta = CType(MyBase.Tables("mostrar_detalle_venta"),mostrar_detalle_ventaDataTable)
    If (initTable = true) Then
        If (Not (Me.tablemostrar_detalle_venta) Is Nothing) Then
            Me.tablemostrar_detalle_venta.InitVars
        End If
    End If
    Me.tablemostrar_producto = CType(MyBase.Tables("mostrar_producto"),mostrar_productoDataTable)
    If (initTable = true) Then
        If (Not (Me.tablemostrar_producto) Is Nothing) Then
            Me.tablemostrar_producto.InitVars
        End If
    End If
    Me.tablemostrar_venta = CType(MyBase.Tables("mostrar_venta"),mostrar_ventaDataTable)
    If (initTable = true) Then
        If (Not (Me.tablemostrar_venta) Is Nothing) Then
            Me.tablemostrar_venta.InitVars
        End If
    End If
    Me.relationFK_detalle_venta_producto = Me.Relations("FK_detalle_venta_producto")
    Me.relationFK_detalle_venta_ventas = Me.Relations("FK_detalle_venta_ventas")
    Me.relationFK_producto_categoria = Me.Relations("FK_producto_categoria")
    Me.relationFK_ventas_cliente = Me.Relations("FK_ventas_cliente")
End Sub
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Private Sub InitClass()
    Me.DataSetName = "dbventasDataSet1"
    Me.Prefix = ""
    Me.Namespace = "http://tempuri.org/dbventasDataSet1.xsd"
    Me.EnforceConstraints = true
    Me.SchemaSerializationMode = Global.System.Data.SchemaSerializationMode.IncludeSchema
    Me.tablecategoria = New categoriaDataTable()
    MyBase.Tables.Add(Me.tablecategoria)
    Me.tablecliente = New clienteDataTable()
    MyBase.Tables.Add(Me.tablecliente)
    Me.tabledetalle_venta = New detalle_ventaDataTable()
    MyBase.Tables.Add(Me.tabledetalle_venta)
    Me.tableproducto = New productoDataTable()
    MyBase.Tables.Add(Me.tableproducto)
    Me.tableusuario = New usuarioDataTable()
    MyBase.Tables.Add(Me.tableusuario)
    Me.tableventa = New ventaDataTable()
    MyBase.Tables.Add(Me.tableventa)
    Me.tablegenerar_comprobante = New generar_comprobanteDataTable()
    MyBase.Tables.Add(Me.tablegenerar_comprobante)
    Me.tablemostrar_categoria = New mostrar_categoriaDataTable()
    MyBase.Tables.Add(Me.tablemostrar_categoria)
    Me.tablemostrar_cliente = New mostrar_clienteDataTable()
    MyBase.Tables.Add(Me.tablemostrar_cliente)
    Me.tablemostrar_detalle_venta = New mostrar_detalle_ventaDataTable()
    MyBase.Tables.Add(Me.tablemostrar_detalle_venta)
    Me.tablemostrar_producto = New mostrar_productoDataTable()
    MyBase.Tables.Add(Me.tablemostrar_producto)
    Me.tablemostrar_venta = New mostrar_ventaDataTable()
    MyBase.Tables.Add(Me.tablemostrar_venta)
    Me.relationFK_detalle_venta_producto = New Global.System.Data.DataRelation("FK_detalle_venta_producto", New Global.System.Data.DataColumn() {Me.tableproducto.idproductoColumn}, New Global.System.Data.DataColumn() {Me.tabledetalle_venta.idproductoColumn}, false)
    Me.Relations.Add(Me.relationFK_detalle_venta_producto)
    Me.relationFK_detalle_venta_ventas = New Global.System.Data.DataRelation("FK_detalle_venta_ventas", New Global.System.Data.DataColumn() {Me.tableventa.idventaColumn}, New Global.System.Data.DataColumn() {Me.tabledetalle_venta.idventaColumn}, false)
    Me.Relations.Add(Me.relationFK_detalle_venta_ventas)
    Me.relationFK_producto_categoria = New Global.System.Data.DataRelation("FK_producto_categoria", New Global.System.Data.DataColumn() {Me.tablecategoria.idcategoriaColumn}, New Global.System.Data.DataColumn() {Me.tableproducto.idcategoriaColumn}, false)
    Me.Relations.Add(Me.relationFK_producto_categoria)
    Me.relationFK_ventas_cliente = New Global.System.Data.DataRelation("FK_ventas_cliente", New Global.System.Data.DataColumn() {Me.tablecliente.idclienteColumn}, New Global.System.Data.DataColumn() {Me.tableventa.idclienteColumn}, false)
    Me.Relations.Add(Me.relationFK_ventas_cliente)
End Sub
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Private Function ShouldSerializecategoria() As Boolean
    Return false
End Function
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Private Function ShouldSerializecliente() As Boolean
    Return false
End Function
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Private Function ShouldSerializedetalle_venta() As Boolean
    Return false
End Function
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Private Function ShouldSerializeproducto() As Boolean
    Return false
End Function
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Private Function ShouldSerializeusuario() As Boolean
    Return false
End Function
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Private Function ShouldSerializeventa() As Boolean
    Return false
End Function
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Private Function ShouldSerializegenerar_comprobante() As Boolean
    Return false
End Function
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Private Function ShouldSerializemostrar_categoria() As Boolean
    Return false
End Function
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Private Function ShouldSerializemostrar_cliente() As Boolean
    Return false
End Function
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Private Function ShouldSerializemostrar_detalle_venta() As Boolean
    Return false
End Function
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Private Function ShouldSerializemostrar_producto() As Boolean
    Return false
End Function
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Private Function ShouldSerializemostrar_venta() As Boolean
    Return false
End Function
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Private Sub SchemaChanged(ByVal sender As Object, ByVal e As Global.System.ComponentModel.CollectionChangeEventArgs)
    If (e.Action = Global.System.ComponentModel.CollectionChangeAction.Remove) Then
        Me.InitVars
    End If
End Sub
 
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
 Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Public Shared Function GetTypedDataSetSchema(ByVal xs As Global.System.Xml.Schema.XmlSchemaSet) As Global.System.Xml.Schema.XmlSchemaComplexType
    Dim ds As dbventasDataSet1 = New dbventasDataSet1()
    Dim type As Global.System.Xml.Schema.XmlSchemaComplexType = New Global.System.Xml.Schema.XmlSchemaComplexType()
    Dim sequence As Global.System.Xml.Schema.XmlSchemaSequence = New Global.System.Xml.Schema.XmlSchemaSequence()
    Dim any As Global.System.Xml.Schema.XmlSchemaAny = New Global.System.Xml.Schema.XmlSchemaAny()
    any.Namespace = ds.Namespace
    sequence.Items.Add(any)
    type.Particle = sequence
    Dim dsSchema As Global.System.Xml.Schema.XmlSchema = ds.GetSchemaSerializable
    If xs.Contains(dsSchema.TargetNamespace) Then
        Dim s1 As Global.System.IO.MemoryStream = New Global.System.IO.MemoryStream()
        Dim s2 As Global.System.IO.MemoryStream = New Global.System.IO.MemoryStream()
        Try
            Dim schema As Global.System.Xml.Schema.XmlSchema = Nothing
            dsSchema.Write(s1)
            Dim schemas As Global.System.Collections.IEnumerator = xs.Schemas(dsSchema.TargetNamespace).GetEnumerator
            Do While schemas.MoveNext
                schema = CType(schemas.Current,Global.System.Xml.Schema.XmlSchema)
                s2.SetLength(0)
                schema.Write(s2)
                If (s1.Length = s2.Length) Then
                    s1.Position = 0
                    s2.Position = 0
 
                    Do While ((s1.Position <> s1.Length)  _
                                AndAlso (s1.ReadByte = s2.ReadByte))
 
 
                    Loop
                    If (s1.Position = s1.Length) Then
                        Return type
                    End If
                End If
 
            Loop
        Finally
            If (Not (s1) Is Nothing) Then
                s1.Close
            End If
            If (Not (s2) Is Nothing) Then
                s2.Close
            End If
        End Try
    End If
    xs.Add(dsSchema)
    Return type
End Function
 
Friend Function mostrar_comprobante() As Object
    Throw New NotImplementedException()
End Function
 
<Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Public Delegate Sub categoriaRowChangeEventHandler(ByVal sender As Object, ByVal e As categoriaRowChangeEvent)
 
<Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Public Delegate Sub clienteRowChangeEventHandler(ByVal sender As Object, ByVal e As clienteRowChangeEvent)
 
<Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Public Delegate Sub detalle_ventaRowChangeEventHandler(ByVal sender As Object, ByVal e As detalle_ventaRowChangeEvent)
 
<Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Public Delegate Sub productoRowChangeEventHandler(ByVal sender As Object, ByVal e As productoRowChangeEvent)
 
<Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Public Delegate Sub usuarioRowChangeEventHandler(ByVal sender As Object, ByVal e As usuarioRowChangeEvent)
 
<Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Public Delegate Sub ventaRowChangeEventHandler(ByVal sender As Object, ByVal e As ventaRowChangeEvent)
 
<Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Public Delegate Sub generar_comprobanteRowChangeEventHandler(ByVal sender As Object, ByVal e As generar_comprobanteRowChangeEvent)
 
<Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Public Delegate Sub mostrar_categoriaRowChangeEventHandler(ByVal sender As Object, ByVal e As mostrar_categoriaRowChangeEvent)
 
<Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Public Delegate Sub mostrar_clienteRowChangeEventHandler(ByVal sender As Object, ByVal e As mostrar_clienteRowChangeEvent)
 
<Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Public Delegate Sub mostrar_detalle_ventaRowChangeEventHandler(ByVal sender As Object, ByVal e As mostrar_detalle_ventaRowChangeEvent)
 
<Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Public Delegate Sub mostrar_productoRowChangeEventHandler(ByVal sender As Object, ByVal e As mostrar_productoRowChangeEvent)
 
<Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
Public Delegate Sub mostrar_ventaRowChangeEventHandler(ByVal sender As Object, ByVal e As mostrar_ventaRowChangeEvent)
 
'''<summary>
'''Represents the strongly named DataTable class.
'''</summary>
<Global.System.Serializable(),  _
 Global.System.Xml.Serialization.XmlSchemaProviderAttribute("GetTypedTableSchema")>  _
Partial Public Class categoriaDataTable
    Inherits Global.System.Data.TypedTableBase(Of categoriaRow)
 
    Private columnidcategoria As Global.System.Data.DataColumn
 
    Private columnnombre_categoria As Global.System.Data.DataColumn
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Public Sub New()
        MyBase.New
        Me.TableName = "categoria"
        Me.BeginInit
        Me.InitClass
        Me.EndInit
    End Sub
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Friend Sub New(ByVal table As Global.System.Data.DataTable)
        MyBase.New
        Me.TableName = table.TableName
        If (table.CaseSensitive <> table.DataSet.CaseSensitive) Then
            Me.CaseSensitive = table.CaseSensitive
        End If
        If (table.Locale.ToString <> table.DataSet.Locale.ToString) Then
            Me.Locale = table.Locale
        End If
        If (table.Namespace <> table.DataSet.Namespace) Then
            Me.Namespace = table.Namespace
        End If
        Me.Prefix = table.Prefix
        Me.MinimumCapacity = table.MinimumCapacity
    End Sub
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Protected Sub New(ByVal info As Global.System.Runtime.Serialization.SerializationInfo, ByVal context As Global.System.Runtime.Serialization.StreamingContext)
        MyBase.New(info, context)
        Me.InitVars
    End Sub
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Public ReadOnly Property idcategoriaColumn() As Global.System.Data.DataColumn
        Get
            Return Me.columnidcategoria
        End Get
    End Property
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Public ReadOnly Property nombre_categoriaColumn() As Global.System.Data.DataColumn
        Get
            Return Me.columnnombre_categoria
        End Get
    End Property
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0"),  _
     Global.System.ComponentModel.Browsable(false)>  _
    Public ReadOnly Property Count() As Integer
        Get
            Return Me.Rows.Count
        End Get
    End Property
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Public Default ReadOnly Property Item(ByVal index As Integer) As categoriaRow
        Get
            Return CType(Me.Rows(index),categoriaRow)
        End Get
    End Property
 
    <Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Public Event categoriaRowChanging As categoriaRowChangeEventHandler
 
    <Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Public Event categoriaRowChanged As categoriaRowChangeEventHandler
 
    <Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Public Event categoriaRowDeleting As categoriaRowChangeEventHandler
 
    <Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Public Event categoriaRowDeleted As categoriaRowChangeEventHandler
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Public Overloads Sub AddcategoriaRow(ByVal row As categoriaRow)
        Me.Rows.Add(row)
    End Sub
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Public Overloads Function AddcategoriaRow(ByVal nombre_categoria As String) As categoriaRow
        Dim rowcategoriaRow As categoriaRow = CType(Me.NewRow,categoriaRow)
        Dim columnValuesArray() As Object = New Object() {Nothing, nombre_categoria}
        rowcategoriaRow.ItemArray = columnValuesArray
        Me.Rows.Add(rowcategoriaRow)
        Return rowcategoriaRow
    End Function
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Public Function FindByidcategoria(ByVal idcategoria As Integer) As categoriaRow
        Return CType(Me.Rows.Find(New Object() {idcategoria}),categoriaRow)
    End Function
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Public Overrides Function Clone() As Global.System.Data.DataTable
        Dim cln As categoriaDataTable = CType(MyBase.Clone,categoriaDataTable)
        cln.InitVars
        Return cln
    End Function
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Protected Overrides Function CreateInstance() As Global.System.Data.DataTable
        Return New categoriaDataTable()
    End Function
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Friend Sub InitVars()
        Me.columnidcategoria = MyBase.Columns("idcategoria")
        Me.columnnombre_categoria = MyBase.Columns("nombre_categoria")
    End Sub
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Private Sub InitClass()
        Me.columnidcategoria = New Global.System.Data.DataColumn("idcategoria", GetType(Integer), Nothing, Global.System.Data.MappingType.Element)
        MyBase.Columns.Add(Me.columnidcategoria)
        Me.columnnombre_categoria = New Global.System.Data.DataColumn("nombre_categoria", GetType(String), Nothing, Global.System.Data.MappingType.Element)
        MyBase.Columns.Add(Me.columnnombre_categoria)
        Me.Constraints.Add(New Global.System.Data.UniqueConstraint("Constraint1", New Global.System.Data.DataColumn() {Me.columnidcategoria}, true))
        Me.columnidcategoria.AutoIncrement = true
        Me.columnidcategoria.AutoIncrementSeed = -1
        Me.columnidcategoria.AutoIncrementStep = -1
        Me.columnidcategoria.AllowDBNull = false
        Me.columnidcategoria.ReadOnly = true
        Me.columnidcategoria.Unique = true
        Me.columnnombre_categoria.AllowDBNull = false
        Me.columnnombre_categoria.MaxLength = 50
    End Sub
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Public Function NewcategoriaRow() As categoriaRow
        Return CType(Me.NewRow,categoriaRow)
    End Function
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Protected Overrides Function NewRowFromBuilder(ByVal builder As Global.System.Data.DataRowBuilder) As Global.System.Data.DataRow
        Return New categoriaRow(builder)
    End Function
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Protected Overrides Function GetRowType() As Global.System.Type
        Return GetType(categoriaRow)
    End Function
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Protected Overrides Sub OnRowChanged(ByVal e As Global.System.Data.DataRowChangeEventArgs)
        MyBase.OnRowChanged(e)
        If (Not (Me.categoriaRowChangedEvent) Is Nothing) Then
            RaiseEvent categoriaRowChanged(Me, New categoriaRowChangeEvent(CType(e.Row,categoriaRow), e.Action))
        End If
    End Sub
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Protected Overrides Sub OnRowChanging(ByVal e As Global.System.Data.DataRowChangeEventArgs)
        MyBase.OnRowChanging(e)
        If (Not (Me.categoriaRowChangingEvent) Is Nothing) Then
            RaiseEvent categoriaRowChanging(Me, New categoriaRowChangeEvent(CType(e.Row,categoriaRow), e.Action))
        End If
    End Sub
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Protected Overrides Sub OnRowDeleted(ByVal e As Global.System.Data.DataRowChangeEventArgs)
        MyBase.OnRowDeleted(e)
        If (Not (Me.categoriaRowDeletedEvent) Is Nothing) Then
            RaiseEvent categoriaRowDeleted(Me, New categoriaRowChangeEvent(CType(e.Row,categoriaRow), e.Action))
        End If
    End Sub
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Protected Overrides Sub OnRowDeleting(ByVal e As Global.System.Data.DataRowChangeEventArgs)
        MyBase.OnRowDeleting(e)
        If (Not (Me.categoriaRowDeletingEvent) Is Nothing) Then
            RaiseEvent categoriaRowDeleting(Me, New categoriaRowChangeEvent(CType(e.Row,categoriaRow), e.Action))
        End If
    End Sub
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Public Sub RemovecategoriaRow(ByVal row As categoriaRow)
        Me.Rows.Remove(row)
    End Sub
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Public Shared Function GetTypedTableSchema(ByVal xs As Global.System.Xml.Schema.XmlSchemaSet) As Global.System.Xml.Schema.XmlSchemaComplexType
        Dim type As Global.System.Xml.Schema.XmlSchemaComplexType = New Global.System.Xml.Schema.XmlSchemaComplexType()
        Dim sequence As Global.System.Xml.Schema.XmlSchemaSequence = New Global.System.Xml.Schema.XmlSchemaSequence()
        Dim ds As dbventasDataSet1 = New dbventasDataSet1()
        Dim any1 As Global.System.Xml.Schema.XmlSchemaAny = New Global.System.Xml.Schema.XmlSchemaAny()
        any1.Namespace = "http://www.w3.org/2001/XMLSchema"
        any1.MinOccurs = New Decimal(0)
        any1.MaxOccurs = Decimal.MaxValue
        any1.ProcessContents = Global.System.Xml.Schema.XmlSchemaContentProcessing.Lax
        sequence.Items.Add(any1)
        Dim any2 As Global.System.Xml.Schema.XmlSchemaAny = New Global.System.Xml.Schema.XmlSchemaAny()
        any2.Namespace = "urn:schemas-microsoft-com:xml-diffgram-v1"
        any2.MinOccurs = New Decimal(1)
        any2.ProcessContents = Global.System.Xml.Schema.XmlSchemaContentProcessing.Lax
        sequence.Items.Add(any2)
        Dim attribute1 As Global.System.Xml.Schema.XmlSchemaAttribute = New Global.System.Xml.Schema.XmlSchemaAttribute()
        attribute1.Name = "namespace"
        attribute1.FixedValue = ds.Namespace
        type.Attributes.Add(attribute1)
        Dim attribute2 As Global.System.Xml.Schema.XmlSchemaAttribute = New Global.System.Xml.Schema.XmlSchemaAttribute()
        attribute2.Name = "tableTypeName"
        attribute2.FixedValue = "categoriaDataTable"
        type.Attributes.Add(attribute2)
        type.Particle = sequence
        Dim dsSchema As Global.System.Xml.Schema.XmlSchema = ds.GetSchemaSerializable
        If xs.Contains(dsSchema.TargetNamespace) Then
            Dim s1 As Global.System.IO.MemoryStream = New Global.System.IO.MemoryStream()
            Dim s2 As Global.System.IO.MemoryStream = New Global.System.IO.MemoryStream()
            Try
                Dim schema As Global.System.Xml.Schema.XmlSchema = Nothing
                dsSchema.Write(s1)
                Dim schemas As Global.System.Collections.IEnumerator = xs.Schemas(dsSchema.TargetNamespace).GetEnumerator
                Do While schemas.MoveNext
                    schema = CType(schemas.Current,Global.System.Xml.Schema.XmlSchema)
                    s2.SetLength(0)
                    schema.Write(s2)
                    If (s1.Length = s2.Length) Then
                        s1.Position = 0
                        s2.Position = 0
 
                        Do While ((s1.Position <> s1.Length)  _
                                    AndAlso (s1.ReadByte = s2.ReadByte))
 
 
                        Loop
                        If (s1.Position = s1.Length) Then
                            Return type
                        End If
                    End If
 
                Loop
            Finally
                If (Not (s1) Is Nothing) Then
                    s1.Close
                End If
                If (Not (s2) Is Nothing) Then
                    s2.Close
                End If
            End Try
        End If
        xs.Add(dsSchema)
        Return type
    End Function
End Class
 
'''<summary>
'''Represents the strongly named DataTable class.
'''</summary>
<Global.System.Serializable(),  _
 Global.System.Xml.Serialization.XmlSchemaProviderAttribute("GetTypedTableSchema")>  _
Partial Public Class clienteDataTable
    Inherits Global.System.Data.TypedTableBase(Of clienteRow)
 
    Private columnidcliente As Global.System.Data.DataColumn
 
    Private columnnombre As Global.System.Data.DataColumn
 
    Private columnapellidos As Global.System.Data.DataColumn
 
    Private columndireccion As Global.System.Data.DataColumn
 
    Private columntelefono As Global.System.Data.DataColumn
 
    Private columndni As Global.System.Data.DataColumn
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Public Sub New()
        MyBase.New
        Me.TableName = "cliente"
        Me.BeginInit
        Me.InitClass
        Me.EndInit
    End Sub
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Friend Sub New(ByVal table As Global.System.Data.DataTable)
        MyBase.New
        Me.TableName = table.TableName
        If (table.CaseSensitive <> table.DataSet.CaseSensitive) Then
            Me.CaseSensitive = table.CaseSensitive
        End If
        If (table.Locale.ToString <> table.DataSet.Locale.ToString) Then
            Me.Locale = table.Locale
        End If
        If (table.Namespace <> table.DataSet.Namespace) Then
            Me.Namespace = table.Namespace
        End If
        Me.Prefix = table.Prefix
        Me.MinimumCapacity = table.MinimumCapacity
    End Sub
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Protected Sub New(ByVal info As Global.System.Runtime.Serialization.SerializationInfo, ByVal context As Global.System.Runtime.Serialization.StreamingContext)
        MyBase.New(info, context)
        Me.InitVars
    End Sub
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Public ReadOnly Property idclienteColumn() As Global.System.Data.DataColumn
        Get
            Return Me.columnidcliente
        End Get
    End Property
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Public ReadOnly Property nombreColumn() As Global.System.Data.DataColumn
        Get
            Return Me.columnnombre
        End Get
    End Property
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Public ReadOnly Property apellidosColumn() As Global.System.Data.DataColumn
        Get
            Return Me.columnapellidos
        End Get
    End Property
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Public ReadOnly Property direccionColumn() As Global.System.Data.DataColumn
        Get
            Return Me.columndireccion
        End Get
    End Property
 
    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Public ReadOnly Property telefonoColumn() As Global.System.Data.DataColumn
        Get
            Return Me.columntelefono
        End Get
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Imágen de perfil de Phil Rob
Val: 3.353
Oro
Ha mantenido su posición en Visual Basic.NET (en relación al último mes)
Gráfica de Visual Basic.NET

Duda con respecto a una excepción.

Publicado por Phil Rob (1555 intervenciones) el 18/01/2021 16:59:55
Hola Felipe,

Puedo hacer nada con este código.
Envia tu projeto en zip con algunos ejemplos de datos en DB.
Entonces quizá...
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