试试
SystemReady = False
Dim t As Table = Tables("表A.表B")
If t.GetCheckedRows.Count = 0
MessageBox.Show("请在复选框中选择要删除的行")
Else
If MessageBox.Show("是否要删除选择的记录行?","请确认",MessageBoxButtons.YesNo,MessageBoxIcon.Question) = DialogResult.Yes Then
For Each r As Row In t.GetCheckedRows
r.Delete
Next
End If
End If
SystemReady = True