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Asp: UpdateProgress never quits after clicking on downloadable content inside the repeater

I have an ASP.NET 3.5 page that has a repeater containing info lines and custom buttons to change their status.

Suppose he

btn1 btn2 btn3 Id Title Description Status1 Status2

btn1 and btn2 are used to change state 1 and 2, respectively.

btn3 redirects to a custom handler that sends back the downloaded MS-Word report. This happens without leaving the page.

The repeater is inside updatePanel, so I can update statuses without reloading the whole page every time.

When I press btn1 or 2, the download bar appears as usual and disappears when the process ends and the status changes.

When I press btn3, the boot counter stays there, never exited, even after I finished loading.

What can happen?

Handler Code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Net;
using System.IO;
using PublishVersionControlCore;
using System.Configuration;

namespace PublishVersionControlWebControl.Handler
{
    public class WordFileHandler : IHttpAsyncHandler
    {
        private HttpContext _context;
        private AsyncTaskDelegate del;
        protected delegate void AsyncTaskDelegate(HttpContext context);

        #region IHttpAsyncHandler Members

        public WordFileHandler()
        {
            this.del = new AsyncTaskDelegate(ProcessRequest);
        }

        public IAsyncResult BeginProcessRequest(HttpContext context, AsyncCallback cb, object extraData)
        {
            // Store context
            _context = context;
            return del.BeginInvoke(context, cb, extraData);
        }

        public void EndProcessRequest(IAsyncResult result)
        {
            this.del.EndInvoke(result);
        }

        #endregion

        #region IHttpHandler Members

        public bool IsReusable
        {
            get { return true; }
        }

        public void ProcessRequest(HttpContext context)
        {
            HttpResponse resp = context.Response;
            resp.Clear();
            int workItemId = 0;
            if (Int32.TryParse(context.Request.QueryString["wi"], out workItemId))
            {
                MemoryStream ms = null;
                using (WorkItemReportService.ReportClient client = new WorkItemReportService.ReportClient())
                {
                    byte[] resultFile = client.GenerateWorkReport(
                        new Uri(ConfigurationManager.AppSettings["serverUri"]),
                        workItemId,
                        ConfigurationManager.AppSettings["wordTemplate"]);
                    ms = new MemoryStream(resultFile);
                }

                resp.ContentType = "application/octet-stream";
                resp.AddHeader("content-disposition", String.Format("attachment;filename=RelatorioSimples_WI-{0}.docx", workItemId));
                resp.Buffer = true;                
                ms.WriteTo(resp.OutputStream);
                resp.End();
            }
        }

        #endregion
    }
}

ItemCommand in the repeater:

if (e.CommandName.Equals("WordExport"))
{
    string uri = HttpContext.Current.Request.RawUrl;
    string url = string.Format("{0}/WordReport.dohx?wi={1}",
    uri.Substring(0, uri.LastIndexOf("/")), wivdata.SystemID);
    Response.Redirect(url);
}

Aspx Page (I put it all in because I didn’t understand what was appropriate and what wasn’t):

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="~/ListaDeAtividadesPage.aspx.cs"
    MasterPageFile="~/_layouts/customapplication.master" Inherits="PublishVersionControlWebControl.ListaDeAtividadesPage, PublishVersionControlWebControl, Version=1.0.0.0, Culture=neutral, PublicKeyToken=78508f22b73cda2b" %>

<%@ Register Assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
    Namespace="System.Web.UI" TagPrefix="asp" %>
<asp:Content ContentPlaceHolderID="PlaceHolderAdditionalPageHead" runat="server">
    <link rel='stylesheet' text='text/css' href='/_layouts/Extensions/Versioning/css/style.css' />
    <script src="/_layouts/Extensions/Versioning/js/jquery.tools.min.js" type="text/javascript"></script>
    <script src="/_layouts/Extensions/Versioning/js/jquery.corner.js" type="text/javascript"></script>
</asp:Content>
<asp:Content ID="Content1" ContentPlaceHolderID="PlaceHolderPageImage" runat="server">
    <img width="145" height="54" alt="Dashboard" src="/_layouts/Microsoft.TeamFoundation/images/notes.png" />
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="PlaceHolderPageTitleInTitleArea"
    runat="server">
    <asp:Literal ID="TitleContent" runat="server"></asp:Literal>
</asp:Content>
<asp:Content ID="Main" ContentPlaceHolderID="PlaceHolderMain" runat="server">
    <script type="text/javascript">
        _spOriginalFormAction = document.forms[0].action;
        _spSuppressFormOnSubmitWrapper = true;  
    </script>
    <asp:UpdateProgress ID="UpdateProgress1" runat="server" AssociatedUpdatePanelID="updPanel">
        <ProgressTemplate >
            <div class="follower">
            <asp:Image ID="imgUpdate" CssClass="follower" ImageUrl="/_layouts/Extensions/Versioning/img/ui/ajax-loader.gif"
                runat="server" />
                <span class="follower">Carregando...</span>
            </div>
        </ProgressTemplate>
    </asp:UpdateProgress>
    <div>
        <asp:UpdatePanel ID="updPanel" runat="server">
            <ContentTemplate>
                <asp:Literal ID="tooltipScript" runat="server" />
                <div class="buttonBar">
                    <hr style="color: #426DA8;" />
                    <asp:Button CssClass="specific" ID="btnUpdateWI" Text="Atualiza WIs da Lista" runat="server"
                        UseSubmitBehavior="false" />
                    <asp:Button CssClass="specific" ID="btnRelatorioScripts" Text="Relatório de Scripts / ZIPs"
                        runat="server" />
                    <asp:Button CssClass="specific" ID="Button1" Text="Relatório de Publicações" runat="server" />
                    <asp:Button CssClass="generic" ID="btnVolta" Text="Volta ao Menu de Versões" runat="server" />
                    <hr style="color: #426DA8;" />
                </div>
                <asp:Repeater ID="rptListaAtividades" runat="server">
                    <HeaderTemplate>
                        <asp:Label ID="comentarioHeader" runat="server"/>
                        <h3>
                            <b class="rollback">Rollback</b> | <b class="emteste">Em Teste</b> | <b class="aindanaoincluido">
                                Ainda não Incluído</b> | <b class="parcialmenteok">Atividade Parcialmente OK</b>
                            | <b class="todosok">Atividade OK em Todas as Lojas</b> | <b class="parcpublicado">Parcialmente Publicada</b> | <b class="publicado">Atividade
                                Publicada</b>
                        </h3>   
                    </HeaderTemplate>
                    <ItemTemplate>
                        <div class="item" style="display: inline-block; font-size: 12px">
                            <asp:ImageButton ToolTip="Gerar Relatório Word" ImageUrl="/_layouts/Extensions/Versioning/img/wordexport.png"
                                CommandName="WordExport" ID="btnWordExport" CssClass="itembutton" runat="server" />
                            <asp:ImageButton ToolTip="Marcar como Rollback" ImageUrl="/_layouts/Extensions/Versioning/img/rollback.png"
                                CommandName="MarkAsRollback" ID="btnItemRollback" CssClass="itembutton" runat="server" />
                            <asp:ImageButton ToolTip="Esta atividade possui código. Clique para sinalizar como apenas procedure/config"
                                ImageUrl="/_layouts/Extensions/Versioning/img/code.png" CommandName="MarkAsProc"
                                ID="btnItemProc" CssClass="itembutton" runat="server" />
                            <asp:Image ToolTip="Esta atividade não possui scripts de banco/zips." ImageUrl="/_layouts/Extensions/Versioning/img/noscript.png"
                                runat="server" CssClass="itembutton" ID="btnItemScript" />
                            <asp:Label ID="labelWI" Text="" runat="server"></asp:Label>
                            <asp:Literal ID="tooltip" runat="server" />
                            <asp:Label ID="labelState" Text="" runat="server"></asp:Label>
                            <span style="color: #4A82CB">
                                <%# DataBinder.Eval(Container.DataItem, "SystemAssignedTo") %>
                                - </span><span style="color: Navy">
                                    <%# DataBinder.Eval(Container.DataItem, "SystemTitle") %>
                                </span>
                            <asp:HiddenField ID="workItemID" runat="server" />
                        </div>
                        <hr class="item" noshade style="color: #4CBDCB; height: 2px; background-color: #4CBDCB" />
                    </ItemTemplate>
                </asp:Repeater>
            </ContentTemplate>
        </asp:UpdatePanel>
    </div>
</asp:Content>

Other information:

  • This is the layout page in WSS 3.0
  • I'm not sure where the update panel is where it should be
+1
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1 answer

You cannot call Response.Redirect(url)from a call inside the update panel.

With this redirection, you split the viewport and you never return the information that updatepanel requests. Find another way for the download link or remove the updated panel.

, ajax UpdatePanel. ajax, UpdatePanel , , . , , , javascript.

- javascript , , javascript.

+1

Source: https://habr.com/ru/post/1527873/

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