链接按钮回发两次

问题描述：

在我的default.aspx中，我有一个div，该div具有用于高级搜索的链接按钮.当我单击此链接按钮时，我要在default.aspx上存在的iframe中打开一个页面.
我的链接按钮的代码是

In my default.aspx I am having a div which has linkbutton for Advanced search. When i click on this link button I want to open a page in the iframe present on default.aspx.
Code for my link button is

<asp:LinkButton runat="server" ID="lbAdvancedSearch"
Text="Advanced Search" ForeColor="Black" onClientClick="javascript:OpenAdvancedSearch();"></asp:LinkButton>

和javascript函数类似:

And javascript function is like:

function OpenAdvancedSearch() {
          window.open(''Cases.aspx?Search=1&IsAdvancedSearch=1'', ''CenterTop'');
      }

除此之外，我还尝试在page_load事件中为onclick事件添加属性.

但是，无论我尝试使用哪种Page_Load事件，在单击链接按钮时都会被调用两次.

请帮助..

Apart from this I also tried adding attributes for onclick event in page_load event.

But whatever i try Page_Load event is called twice on clicking link button.

please help..

答

我认为您需要在调用如下所示的OpenAdvancedSearch方法后添加return false;语句.
如果只允许调用open函数，则可以使用简单的anchor标记，例如:

I think you need to add the return false; statement after you call the OpenAdvancedSearch method as shown below.

If you want to allow only the open function to be called, you can use a simple anchor tag like:

<a href="#" onclick="javascript:OpenAdvancedSearch(); return false;">Advance Search</a>

或者，如果您想继续使用现有代码，只需在末尾添加return false;，如下所示:

Or if you want to continue with the existing code, just add return false; at the end like this:

<asp:linkbutton runat="server" id="lbAdvancedSearch" xmlns:asp="#unknown">
Text="Advanced Search" ForeColor="Black" onClientClick="javascript:OpenAdvancedSearch(); return false;"></asp:linkbutton>

return false;语句将避免回发.

The return false; statement will avoid the postback.

链接按钮回发两次

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