使用“删除”按钮时出错

Question

每次使用删除按钮时都会出错。我使用Visual Basic 2008和micrsoft access 2007作为数据库。 这应该工作的方式是我搜索我要删除的客户我按下删除按钮并完成。将其从程序和数据库中删除。

这是代码

Private Sub btnDelete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDelete.Click
    Dim Answer As DialogResult
    Dim Count As Integer
    Count = SandRDataSet.Tables("Customer details").Rows.Count
    If Count = 0 Then
        MessageBox.Show("There are no records to delete", "Delete record", MessageBoxButtons.OK, MessageBoxIcon.Error)
    Else
        Answer = MessageBox.Show("Are you sure ou want to delete.", "Delete record", MessageBoxButtons.YesNo, MessageBoxIcon.Question)
        If Answer = Windows.Forms.DialogResult.Yes Then
            SandRDataSet.Tables("Customer details").Rows(CurrentRowNo).Delete()


            da.Update(SandRDataSet, "Customer details")
            MessageBox.Show("The record has been deleted", "Delete record", MessageBoxButtons.OK, MessageBoxIcon.Information)
            CurrentRowNo = ds.Tables("Customer details").Rows.Count - 1
        Else
            MessageBox.Show("The record has NOT been deleted.", "Delete record", MessageBoxButtons.OK, MessageBoxIcon.Information)
        End If
    End If
End Sub

但是当我使用代码时，我收到错误消息为"Update requires a valid DeleteCommand when passed DataRow collection with deleted rows."。任何帮助都会被感谢。