RE:insertar datos en una tabla
SqlCommand1.Parameters.Add("@rfc,char", 11).Value = TextBox1.Text
SqlCommand1.Parameters.Add("@nombre,char", 35).Value = TextBox2.Text
SqlCommand1.Parameters.Add("@direccion,char", 40).Value = TextBox3.Text
SqlCommand1.Parameters.Add("@telefono,char", 10).Value = TextBox4.Text
SqlCommand1.Parameters.Add("@ocupacion,char", 30).Value = TextBox5.Text
SqlCommand1.Parameters.Add("@nick,char", 10).Value = TextBox6.Text
SqlCommand1.Parameters.Add("@contraseña,char", 10).Value = TextBox7.Text
SqlCommand1.Parameters.Add("@saldo,float", 10).Value = TextBox8.Text
SqlConnection2.Open()
SqlCommand1.ExecuteNonQuery()
SqlConnection2.Close()
Ahora sale error en
SqlConnection2.Open()
SqlCommand1.ExecuteNonQuery()
SqlConnection2.Close()
Y DICE EL ERROR: An unhandled exception of type 'System.InvalidOperationException' occurred in system.data.dll
Additional information: ExecuteReader: Connection property has not been initialized.