在客户端增加服务器端按钮的onclick事件
分为两部分:
一.在服务器端的Page_load事件中添加按钮的Attributes属性:
this.btnAdd.Attributes["onclick"]="javascript:return checkData();";
//return关键字很重要,当条件为false时服务器端的click事件才不会执行.
二.在客户端中写如下的JS代码:
function checkData()
{
if(document.all("txtName").value=="")
{
alert("新增用户姓名不能为空");
return false;//此名很重要,这样当txtName为空时就不会执行服务器端按钮(btnAdd)的click事件.
}
}
一.在服务器端的Page_load事件中添加按钮的Attributes属性:
![](/Images/OutliningIndicators/None.gif)
![](/Images/OutliningIndicators/None.gif)
![](/Images/OutliningIndicators/None.gif)
![](/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
![](/Images/OutliningIndicators/ExpandedBlockEnd.gif)