嵌套更新面板问题

I am having a nested update panel something like this

<asp:UpdatePanel ID="DetailsUpdatePanel" runat="server" Visible="false" UpdateMode="Conditional" >
    <ContentTemplate>
    <div><ajaxToolkit:AsyncFileUpload runat="server" ID="BrochureUpload" Width="400px"   
            OnClientUploadError="BrochureuploadError"    
            OnClientUploadStarted="BrochureStartUpload"  
            OnClientUploadComplete="BrochureUploadComplete"  
            CompleteBackColor="Lime" UploaderStyle="Modern"    
            ErrorBackColor="Red" ClientIDMode="AutoID"    
            ThrobberID="Throbber"    
            UploadingBackColor="#66CCFF" 
                onuploadedcomplete="BrochureUpload_UploadedComplete"/>
                <asp:Label ID="Label1" runat="server" Style="display: none">
     <asp:Image runat="server" ID="Image1" ImageUrl="~/Images/uploading.gif" />
            </asp:Label>
      <asp:Label ID="brochurelblstatus" runat="server" Style="font-family: Arial; font-size: small;"></asp:Label></div>
     <div><asp:UpdatePanel runat="server" ID="child" UpdateMode="Conditional" >
                <ContentTemplate>
                <div>
     <asp:GridView ID=GridView2" runat="server" AllowPaging="true" AutoGenerateColumns="false" CellPadding="0" CellSpacing="1" DataKeyNames="ArticleId">
        <Columns>
       <asp:BoundField DataField="ArticleId" HeaderText="ArticleId" ReadOnly="True" HeaderStyle-CssClass="td1" />
       <asp:BoundField DataField="FileName" HeaderText="FileName" ReadOnly="True" HeaderStyle-CssClass="td2" />
       <asp:TemplateField HeaderText="BrochureUrl">
       <ItemTemplate>
       <asp:HyperLink ID="lnkEPhoto" runat="server" BorderWidth="2px" NavigateUrl='<%# GetUrl(Eval("ArticleId"),Eval("FileName")) %>'
                    Target="_blank"></asp:HyperLink>
          </ItemTemplate>
       </asp:TemplateField>
       <asp:TemplateField>
      <ItemTemplate>
       <asp:LinkButton ID="btnRemove" runat="server" text="Delete" CommandName="Delete" CausesValidation="False" OnClientClick="DeleteOrNo()">
       </asp:LinkButton>
         </ItemTemplate>
       </asp:TemplateField>
         </Columns>
        </asp:GridView>
           </div>

                </ContentTemplate>

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

CodeBehind:

protected void BrochureUpload_UploadedComplete(object sender, AsyncFileUploadEventArgs e)
                 {
                     if(BrochureUpload.HasFile)
                     {
                         if(BrochureUpload.PostedFile.ContentLength<=3670016 )
                         {
                             var brochurePath = MapPath("~/") + Path.GetFileName(e.filename);
                             BrochureUpload.SaveAs(brochurePath);
                             using (var dataContext = new NewsStandAloneDataContext(Config.StandaloneNewsConnectionString))
                             {
                                 var brochure = new xxx
                                                    {
                                                        Id = Convert.ToInt32(GridView1.SelectedValue),
                                                        FileName = Path.GetFileName(e.filename),
                                                        RecordCreated = DateTime.Now
                                                    };
                                 dataContext.xxx.InsertOnSubmit(brochure);
                                 dataContext.SubmitChanges();
                             }
                             bindGridView();//I have code to bind gridview
    Child.Update();


                         }
                     }
                 }

     protected void bindBrochureGridView()
            {
                using (var dataContext = new NewsStandAloneDataContext(Config.StandaloneNewsConnectionString))
                {
                    var brochureList = (from brochure in dataContext.xxx
                                        where brochure.ArticleId == Convert.ToInt32(GridView2.SelectedValue)
                                        select new ArcticleBrochure
                                                   {
                                                       ArticleId = brochure.ArticleId.ToString(),
                                                       FileName = brochure.FileName

                                                   }).ToList();
                    GridView1.DataSource = brochureList;
                    GridView1.DataBind();        

                }
            }

When I upload the file , I want the giedview which is in the child updatepanel to be updated .But it doesnt work Any ideas?????

thanks in advance

When file upload is complete then call Child.Update() method of UpdatePanel which contain gridview. You need to do that because you set UpdateMode="Conditional" in this case you have to manually update it in code.

Call child.Update(); in BrochureUpload_UploadedComplete event.

 protected void BrochureUpload_UploadedComplete(object sender, AsyncFileUploadEventArgs e)
 {
   ....................
   ....................
   bindGridView();//I have code to bind gridview
   child.Update();
 }

ChildrenAsTriggers="True" in your updatepanel.