怎么去掉button默认的提交行为
<form id= "form1 " runat= "server " onsubmit= "return checkdata() ">
<asp:Button ID= "Button2 " runat= "server " UseSubmitBehavior= "false " Text= "检查用户名是否可用 " >
每次点击，都会触发checkdata(),设置UseSubmitBehavior= "false "不起作用，请高手回答

[解决办法]
给它注册一个Click客户端事件,在这个事件里return false应该可以吧.
[解决办法]
Button2.Attributes.Add( "onclick ", "return false; ");
[解决办法]
<asp:Button ID= "Button2 " runat= "server " OnClientClick= "return false " UseSubmitBehavior= "false " Text= "检查用户名是否可用 " />