“文件上载”在“更新”面板中不起作用 [英] File Upload is not working in Update panel

问题描述

大家好，



我在主页面中有更新面板。但我无法访问aspx文件中的文件上传控件。





结构：



Masterfile

 <   div     id   =  content    class   =  shell >  
 <   asp：UpdatePanel     ID   =  UpdatePanel1    runat   =  server >  
 <   ContentTemplate  >  
 <   asp：ContentPlaceHolder     id   =  ContentPlaceHolder1    runat   = 服务器 >  
 
 <   / asp：ContentPlaceHolder  >  
 <   / ContentTemplate  >  
 <   / asp：UpdatePanel  >  
 <  < span class =code-leadattribute> / div  >  

 File.aspx（它使用主文件）：
 
 <   asp：内容    ID   =  Content3    ContentPlaceHolderID   =  ContentPlaceHolder1   < span class =code-attribute> runat   = 服务器 >  

 <   asp：UpdatePanel     ID   =  RegUpdatePanel    runat   = 服务器 >  
 <   ContentTemplate  >  

 <   FileUpload     ID   =  flUpload    runat   =  server   宽度  =  148px    /  >  
 <  触发器 >  
 <   asp： AsyncPostBackTrigger     ControlID   =  btSubmit    EventName   = 点击    /  >  
 <   asp：PostBackTrigger     ControlID   =  lnkTemplate    /  >  
 <   asp：AsyncPostBackTrigger     ControlID   =  btSubmit    /  >  
 < < /跨度> <跨度class =code-leadattribute> /触发器 >  
 
 
 
 
如果我使用此代码FileUpload控件无法访问
 
请帮助

解决方案

尝试使用 PostBackTrigger 而不是 AsyncPostBackTrigger

 < asp：postbacktrigger controlid =   btSubmit /> 

Hi all,

I have Update panel in Master page.But i cant access file upload control in aspx file.


Structure:

Masterfile

<div id="content" class="shell">
        <asp:UpdatePanel ID="UpdatePanel1" runat="server">
            <ContentTemplate>
                <asp:ContentPlaceHolder id="ContentPlaceHolder1" runat="server">

                </asp:ContentPlaceHolder>
            </ContentTemplate>
        </asp:UpdatePanel>
    </div>

File.aspx (it uses master file):

<asp:Content ID="Content3" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">

<asp:UpdatePanel ID="RegUpdatePanel" runat="server">
                      <ContentTemplate>

<FileUpload ID="flUpload" runat="server" Width="148px" />
<triggers>
                            <asp:AsyncPostBackTrigger ControlID="btSubmit" EventName="Click" />
                            <asp:PostBackTrigger ControlID="lnkTemplate" />
                                 <asp:AsyncPostBackTrigger ControlID="btSubmit" />
                    </triggers>
 
                  
                    

if i use this code FileUpload control is not accessible

Pls help

解决方案

Try using PostBackTrigger instead of AsyncPostBackTrigger

<asp:postbacktrigger controlid="btSubmit" />

这篇关于“文件上载”在“更新”面板中不起作用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！