MySql Login = MySqlException was unhandled

[Boris Wilson]

'Abaixo as linhas de código inseridas no Visual Studio Professional 2010 e conexão com o MySQL Server 5.0 e o MySQL Connector Net 6.4.4. os PLICS na linha de código estão as informações do breakpoint. No Data Source na opcão preview data a Tabela tb_login_usuario apresenta-se com a linha de registro. Estou trabalhando com um windons 7 64 bits.

Imports System.Data.SqlClient
Imports MySql.Data.MySqlClient
Public Class LoginForm1
    Dim MySQLConnection As MySqlConnection
    Private Sub OK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OK.Click
        Dim cs As String = My.Settings.testConnectionString
        Dim conect As New MySqlConnection
        conect.ConnectionString = cs
        conect.Open()
        Dim selcon As New MySqlCommand
        selcon.Connection = conect
        selcon.CommandText = "SELECT nome FROM tb_login_usuario WHERE LoginForm1 = '" & UsernameTextBox.Text & "'"
        Dim nome As String = selcon.ExecuteScalar
        'nome Nothing
        'MySqlException was unhandled
        'Unknown column 'LoginForm1' in 'where clause'
        conect.Close()
        SI_Principal.Show()
        Me.Close()
    End Sub

Edited February 15, 2012 by kuroi
Adicionar tag CODE

[kuroi]

Movido pra .NET.

Existe mesmo o campo LoginForm1 na tabela tb_login_usuario??