C/Visual C - no entra los datos

string consulta = @"select almacen,RefTallaColor,Referencia,Talla,color,IDCurva,CantUnidades,CantModificadas from Analisis_Curva  WHERE RefTallaColor = '" + ddlReferenciaTallaColor.SelectedValue + "' and almacen  = '" + ddlAlmacen.SelectedValue + "'";

var cmd = new SqlCommand(consulta, conexion);

SqlDataReader lector = cmd.ExecuteReader();

while (lector.Read())

{

    var customers = new CustomersBe();

    customers.Almacen = (string)lector[0];

    customers.reftallacolor = (string)lector[1];

    customers.referencia = (string)lector[2];

    customers.talla = (string)lector[3];

    customers.color = (string)lector[4];

    customers.idcurva = (int)lector[5];

    customers.CantUnidades = (string)lector[6];

    customers.CantModificadas = (string)lector[7];

    lista.Add(customers);

}

grvAnalisis.DataSource = lista;

grvAnalisis.DataBind();

conexion.Close();

SqlDataReader getSqlDataReader(String ^_sql)

{

    SqlDataReader ^_sqlDataReader = nullptr;

    SqlConnection ^_connection = gcnew SqlConnection();

    ConnectionStringSettings ^connectionSettings = ConfigurationManager::ConnectionStrings["AppDefaultConnection"];

    this->_connection->ConnectionString = connectionSettings->ConnectionString;

    try {

        this->_connection->Open();

    }

    catch (Exception ^_exception)

    {

        Console::WriteLine("Error : "  + _exception->Message);

        return nullptr;

    }

    try

    {

        SqlCommand ^_sqlCommand = gcnew SqlCommand(_sql,_connection);

        _sqlDataReader = _sqlCommand->ExecuteReader();

    }

    catch(Exception ^_exception)

    {

        Console::WriteLine("Error : "  + _exception->Message);

        return nullptr;

    }

    return _sqlDataReader;

SqlDataReader ^reader = getSqlDataReader(yourParameterizedQueryString);

        List<TypeToFetch>^ data = gcnew List<TypeToFetch^>();

        if(reader != nullptr && reader->HasRows)

        {

            TypeToFetch^ typeToFetch = gcnew TypeToFetch();

            while(reader->Read())

            {

                    // example

                TypeToFetch->id = (int) reader["Id"];

                TypeToFetch->name = reader["Name"]->ToString();

                data->Add(typeToFetch);

            }

        }

Imports System

Imports System.Collections

Imports System.Data

Imports System.IO

Imports System.Xml.Serialization

Imports System.Xml

Imports System.Windows.Forms

Imports System.Data.SqlClient

Public Class MainClass

    Shared Dim WithEvents con As SqlConnection

    Shared Sub Main()

        con = New SqlConnection("Server=(local)\SQLEXPRESS;Initial Catalog=MyDatabase;Integrated Security=SSPI")

        Dim cmd As New SqlCommand()

        cmd.CommandText = "SELECT * FROM Employee; SELECT * FROM Employee"

        cmd.Connection = con

        Try

            con.Open()

            Dim reader As SqlDataReader = cmd.ExecuteReader()

            Do

                While reader.Read()

                    Console.WriteLine(reader(0) & vbTab & reader(1))

                End While

            Loop While reader.NextResult()

            reader.Close()

        Finally

            con.Close()

        End Try

    End Sub

End Class