รบกวนผู้รู้หน่อยครับ การเชื่อมต่อFrom Login เพิ่งหัดครับ error แก้ไม่ได้ครับช่วยที ต่อกับ Access

Option Explicit On
Imports System.Data
Imports System.Data.OleDb

Public Class Form1
    ' Dim objCon As OleDbConnection
    Dim strSQL As String
    Dim strConnection As String = "Provider= Microsoft.ACE.OLEDB.12.0;Data Source = C:\Users\User\Desktop\Visual Basic Program\Salesomting_service\ฐานข้อมูล1.accdb"
    Dim objcon As New OleDbConnection("Provider= Microsoft.ACE.OLEDB.12.0;Data Source = C:\Users\User\Desktop\Visual Basic Program\Salesomting_service\ฐานข้อมูล1.accdb")
    Dim da As New OleDb.OleDbDataAdapter
    Dim ds As New DataSet
    Dim attempt As Integer = 0

    Private Sub BtnLoginL_Click(sender As System.Object, e As System.EventArgs) Handles BtnLoginL.Click
        Dim warning As String = "คุณกรอกข้อมูลไม่ถูกต้อง" & vbNewLine & vbNewLine + _
            "If attempt var = 3" + vbNewLine + _
            "System will shutdown."

        If (TbnUsername.Text = "") And (TbnPassword.Text = "") Then
            attempt = attempt + 1
            MsgBox("กรุณากรอกข้อมูลให้ครบครับ" & vbNewLine & vbNewLine + _
                   warning, MsgBoxStyle.Exclamation, "Sorry sir!!" + _
                   "Now attempt var  " & attempt)
        ElseIf (TbnUsername.Text = "") Then
            attempt = attempt + 1
            MsgBox("กรุณาใส่ Username" & vbNewLine & vbNewLine + _
                   warning, MsgBoxStyle.Information, "Sorry sir!!" + _
                   "Now attempt var  " & attempt)
        ElseIf (TbnPassword.Text = "") Then
            attempt = attempt + 1
            MsgBox("กรุณาใส่ Password" & vbNewLine & vbNewLine + _
                   warning, MsgBoxStyle.Exclamation, "Sorry sir!!" + _
                   "Now attempt var  " & attempt)
        Else
            Dim strName = TbnUsername.Text
            Dim strPass = TbnPassword.Text

            With objCon
                .Close()
                If (.State = ConnectionState.Closed) Then
                    .ConnectionString = strConnection
                    .Open()
                    MsgBox("ConnectionState.Open", MsgBoxStyle.Information, "Connected")
                End If
            End With

            ds.Clear()
            strSQL = "Select * from Login Where Login_Name ='" & TbnUsername.Text & "' And Login_Password='" & TbnPassword.Text & "'"
            da = New OleDbDataAdapter(strSQL, objCon)
            da.Fill(ds, "Login")
            If (ds.Tables("Login").Rows.Count <> 0) Then
                MaximizeBox = True
                MinimizeBox = True

                MsgBox("Hello! :" + strName + vbNewLine + _
                       "Login สำเร็จ", MsgBoxStyle.OkOnly, "Welcome" + strName)

            Else
                MaximizeBox = False
                MinimizeBox = False
                attempt = attempt + 1

                MsgBox("OOP!")
            End If
            End If
        If (attempt = 3) Then
            MsgBox("Windows is shutting down...", MsgBoxStyle.Critical, "Goodbye")
            Close()
        End If


    End Sub
End Class