VB.Net ช่วยด้วย . . .ไม่มีข้อมูลแสดงใน DataGridview เมื่อสั่งรันโปรแกรม งง มากๆครับ

Public Class DemoDatagrid

    Private Sub DemoDatagrid_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        'TODO: This line of code loads data into the 'VisualDataSet.register' table. You can move, or remove it, as needed.
        Me.RegisterTableAdapter.Fill(Me.VisualDataSet.register)
        'TODO: This line of code loads data into the 'VisualDataSet.tb_employees' table. You can move, or remove it, as needed.
        Me.Tb_employeesTableAdapter.Fill(Me.VisualDataSet.tb_employees)
        'TODO: This line of code loads data into the 'VisualDataSet.register' table. You can move, or remove it, as needed.
        Me.Tb_employeesTableAdapter.Fill(Me.VisualDataSet.tb_employees)
        'TODO: This line of code loads data into the 'VisualDataSet02.register' table. You can move, or remove it, as needed.
        Me.Tb_employeesTableAdapter.Fill(Me.VisualDataSet.tb_employees)

    End Sub


    Private Sub Tb_employeesBindingNavigatorSaveItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Tb_employeesBindingNavigatorSaveItem.Click
        Me.Validate()
        Me.Tb_employeesBindingSource.EndEdit()
        Me.TableAdapterManager.UpdateAll(Me.VisualDataSet)

    End Sub
End Class