关于更新面板和asp:panel [英] about update panel and asp:panel

问题描述

我有嵌套的更新面板，并且在外部UpdatePanel中有一个asp:panel控件.当我从内部UpdatePanel生成事件时，asp:panel显示两次.

这是我的UpdatePanels结构:

I have nested update panels and in the outer UpdatePanel there is an asp:panel control. When I generate an event from inner UpdatePanel,asp:panel is displayed twice.

This is my structure of UpdatePanels:

<asp:UpdatePanel>
    <asp:UpdatePanel>
    </asp:UpdatePanel>
       <i have triggered event here >
   <asp:panel> </ asp:panel>
</asp:UpdatePanel>

为什么此面板显示两次?

Why is this panel displayed twice?

推荐答案

尝试给他们命名(如果他们还没有这样做的话)，并将UpdateMode设置为有条件的.像这样:

Try give them a name if they don''t already do and set the UpdateMode to conditional. like this:

<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">

祝您好运！

Good luck!

显示两次的原因是您的代码中实际上有2个更新面板.在下面查看您的代码:

The reason why it is displayed twice is that there are actually 2 update panels in your code. Have a look at your code here below:

<asp:UpdatePanel> 
             <asp:UpdatePanel>

              <second update="" panel="" starts="" here="">

             </asp:UpdatePanel>
        
             <i have triggered event here >
             
             <asp:panel> 

            </ asp:panel>
 </asp:UpdatePanel></second>

您需要执行以下代码:

you need to do a code like the one below:

<asp:UpdatePanel>
        <asp:panel xmlns:asp="#unknown"> 
             <i have triggered event here >
             
       </ asp:panel>
 </asp:UpdatePanel>

希望对您有所帮助.
此致

I hope this one helps.
Best Regards

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