Private Sub BtUpdate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BtUpdate.Click
        Try
            Me.BindingContext(Ds1, "工资表").EndCurrentEdit()
            If Ds1.HasChanges(DataRowState.Modified) Then
                MsgBox("更改成功")
            End If
        Catch ex As Exception
        End Try
    End Sub

不止到什么意思   Me.BindingContext(Ds1, "工资表").EndCurrentEdit()
            If Ds1.HasChanges(DataRowState.Modified) Then
                MsgBox("更改成功")
谁能告诉我