สอบถามปัญหาเกี่ยวกับ ฐานข้อมูล access ใน visual studio 2010 ไม่สามารถกดบันทึกได้

Public Class Form1
    Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        'TODO: This line of code loads data into the 'DatamacDataSet.JACK' table. You can move, or remove it, as needed.
        Me.JACKTableAdapter.Fill(Me.DatamacDataSet.JACK)
        'TODO: This line of code loads data into the 'DataDataSet.BH' table. You can move, or remove it, as needed.
        'TODO: This line of code loads data into the 'DataDataSet.JACK' table. You can move, or remove it, as needed.
    End Sub

    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        JACKBindingSource.AddNew()
    End Sub

    Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
        JACKBindingSource.RemoveCurrent()
    End Sub

    Private Sub Button4_Click(sender As Object, e As EventArgs) Handles Button4.Click
        Try
            JACKBindingSource.EndEdit()
            MessageBox.Show("บันทึก")
        Catch ex As Exception
            MessageBox.Show(" บันทึกไม่ได้ !")

        End Try
    End Sub

    Private Sub Button6_Click(sender As Object, e As EventArgs) Handles Button6.Click
        Me.Close()
    End Sub

    Private Sub Button7_Click(sender As Object, e As EventArgs) Handles Button7.Click
        JACKTableAdapter.Update(DatamacDataSet.JACK)
    End Sub

    Private Sub JACKBindingNavigatorSaveItem_Click_1(sender As Object, e As EventArgs) Handles JACKBindingNavigatorSaveItem.Click
        Me.Validate()
        Me.JACKBindingSource.EndEdit()
        Me.TableAdapter.Update(Me.DatamacDataSet.JACK)
    End Sub

    Private Function TableAdapter() As Object
        Throw New NotImplementedException
    End Function

End Class