มีปัญหา โค้ด login error ช่วยหน่อยค่ะ vb2008+access2010

Imports System.Data.OleDb
Imports System.Data
Public Class Login
    Private Sub btnLogin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLogin.Click

        Dim objConn As New OleDbConnection
        Dim objCmd As New OleDbCommand
        Dim strConnString, strSQL As String
        Dim directory As String = My.Application.Info.DirectoryPath

        strConnString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" & directory & "\MyLogin.accdb;Jet OLEDB:Database Password=;"
        objConn.ConnectionString = strConnString
        objConn.Open()

        Dim intNumRows As Integer
        strSQL = "SELECT COUNT(*) FROM member WHERE Username = '" & Me.txtUsername.Text & "' AND [Password] = '" & Me.txtPassword.Text & "' "
        objCmd = New OleDbCommand(strSQL, objConn)
        intNumRows = objCmd.ExecuteScalar() 'error ตรงนี้อะค่ะ

        If intNumRows > 0 Then
            Dim frm As New Main
            frm._strUser = Me.txtUsername.Text
            frm.LoadInfor()
            frm.Show()

            Me.Hide()
        Else
            MessageBox.Show("Username or Password Incorrect")
        End If

        objConn.Close()
        objConn = Nothing

    End Sub

    Private Sub btnClose_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnClose.Click
        If MessageBox.Show("Exit application?", "", MessageBoxButtons.YesNo) = DialogResult.Yes Then
            Application.Exit()
        End If
    End Sub
End Class

Imports System.Data.OleDb
Imports System.Data
Public Class Main
    Dim strUser As String

    Public Property _strUser() As String
        Get
            Return strUser
        End Get
        Set(ByVal value As String)
            strUser = value
        End Set
    End Property

    Public Sub LoadInfor()

        Dim objConn As New OleDbConnection
        Dim objCmd As New OleDbCommand
        Dim dtAdapter As OleDbDataAdapter
        Dim dt As New DataTable
        Dim strConnString, strSQL As String
        Dim directory As String = My.Application.Info.DirectoryPath


        strConnString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Users\Phixgar\Documents\Visual Studio 2008\Projects\Project\Project\Login.accdb" & directory & "Login.accdb;ACE OLEDB:Database Password=;"
        objConn.ConnectionString = strConnString
        objConn.Open()

        strSQL = "SELECT * FROM member WHERE Username = '" & strUser & "' "

        dtAdapter = New OleDbDataAdapter(strSQL, objConn)
        dtAdapter.Fill(dt)

        If dt.Rows.Count > 0 Then
            Me.lblUserName.Text = strUser
            Me.lblName.Text = dt.Rows(0)("Name") 'error ตรงนี้
            Me.lblEmail.Text = dt.Rows(0)("Email") 'กับตรงนี้
        End If

        objConn.Close()
        objConn = Nothing
    End Sub

    Private Sub btnBack_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnProgram.Click
        Dim frm As New Form1
        frm.Show()

        Me.Hide()
    End Sub
End Class