1)from:http://dev.csdn.net/article/56/56880.shtm 在asp.net 1.1中,对于验证类控件,在使用时,遇到有的不需要验证的控件时,是十分麻烦的,就是说不可能有选择验证某些控件,而在asp.net 2.0中,新增加了validationgroup属性,可以指定验证某些控件,例子如下: <html> <body> <form runat=“server”> <asp:textbox id=“TextBox1” runat=“server”/> <asp:requiredfieldvalidator ValidationGroup=“Group1” ErrorText=“Need to Fill in Value!” ControlToValidate=“TextBox1” runat=“server”/> <asp:textbox id=“TextBox2” runat=“server”/> <asp:requiredfieldvalidator ValidationGroup=“Group2” ErrorText=“Need to Fill in Value!”