asp：在表格控件（Web控件）的表格单元格中添加Web控件。

I have inserted a table web control in a panel. In that table's cells I want to insert other user control like label, panel. I am not able to do that. Is there any difference in normal table for layout and table web control. If it is, then how can I insert simple table in a panel.I have inserted a table web control in a panel.