从OnClientClick javascript函数返回true后，在方法后面执行OnClick代码 [英] Executing OnClick code behind method after returning true from OnClientClick javascript function

问题描述

我有这种情况.这是前端的asp:button组件.

I have this scenario. This is the front end asp:button component.

<asp:Button ID="btnNewsAdd" runat="server" Text="Edit current news item" OnClientClick="return Confirm();" OnClick="btnNewsAdd_Click" UseSubmitBehavior="false"/>

这是Javascript:

This is the Javascript:

<script type="text/javascript">
function Confirm() {
   var result = window.confirm('Are you sure?');
      if (result == true)
         return true;
      else
         return false;          
}
</script>

用户应单击"btnNewsAdd"按钮，将触发Javascript，并弹出一个对话框，显示是"或否"选项.单击是将返回true，而否将返回false.如果返回true，则后端中的ASP.Net方法将被触发:btnNewsAdd_Click.一直工作到15分钟前.调试时，JS越过return true行并将headsin移到我自己没有创建的javascript文件中；但是，后端方法不会触发.

The user should click on the "btnNewsAdd" button, the Javascript should be fired and a dialog box with yes or no options pops up. Clicking yes will return true and no will return false. If true is returned the ASP.Net method in the backend: btnNewsAdd_Click should fire. It was working up until 15 mins ago. When debugging, the JS steps over the return true line and headsinto javascript files that I did not create myself; however, the backend method does not fire.

我注意到在源"部分中，HTML转换为以下内容.可以看到OnClick和OnClientClick自动合并到OnClick中.这是自动的，我不知道这可能是问题还是其中的一部分.

I noticed that in the Sources section, the HTML converted to the below. As one can see the OnClick and OnClientClick automatically merged into OnClick. This was automatic and I don't know if it could be the problem or part of it.

<input type="button" name="ctl00$MainContent$btnNewsAdd" value="Edit current news item" onclick="return Confirm();__doPostBack(&#39;ctl00$MainContent$btnNewsAdd&#39;,&#39;&#39;)" id="MainContent_btnNewsAdd" />

我花了整整一天的时间试图解决它.在某个时候它正在运行，并且它只是在没有进行任何更改的情况下就停止了工作.任何建议表示赞赏.

I have literally spent a whole day trying to get around it. At a certain point it was working and it just stopped working without having changed anything. Any suggestions appreciated.

推荐答案

正如雷克斯(Rex)所指出的，以及该线程中的一些解释:

As pointed by Rex, and as explained by several within this thread: See other thread

将按钮更改为:

<asp:Button ID="btnNewsAdd" runat="server" Text="Edit current news item" OnClick="btnNewsAdd_Click" OnClientClick="if (!Confirm()) return false;"/>

和Javascript:

and the Javascript to:

<script type="text/javascript">
function Confirm() {
   return confirm("Are you sure?");         
}
</script>

问题解决了.

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