我可以停止回发使用JavaScript的确认？ [英] Can I stop a post back by using javascripts confirm?

问题描述

我有页面上的asp.net按钮aspx页：

I have an aspx page with a asp.net button on the page:

<asp:LinkButton ID="btn_Delete" runat="server" OnClick="btn_Delete_Click" OnClientClick="ConfirmDelete();" Text="Delete" /> 

确认删除这个样子的：

Confirm delete looks like this:

   function ConfirmDelete() {
       var answer = confirm("Are you SURE you want to delete this item?");
       if (!answer) {
           return false;
       }
   }; 

我曾以为，这将prevent页从如果用户点击取消回发，但它仍然似乎回发。有没有一些方法，我可以确认使用prevent回发？

I had assumed that this would prevent the page from posting back if the user clicked cancel, but it still appears to be posting back. Is there some way I can prevent postback using confirm?

推荐答案

您必须从事件处理函数返回值：

You have to return the value from the function in the event handler:

OnClientClick="return ConfirmDelete();"

顺便说一句，你并不需要所有的逻辑函数中，只返回从确认结果电话：

function ConfirmDelete() {
  return confirm("Are you SURE you want to delete this item?");
};

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