After downloading file the loading screen it does not close ASP NET C#[Answered] RSS

• • Reply
  Edward Sheri...

  Member

  23 Points

  36 Posts

  After downloading file the loading screen it does not close ASP NET C#

  Feb 20, 2021 11:54 AM|Edward Sheriff Curtis|LINK

  Hi,

  I have add a Button in GridView

  <asp:ScriptManager runat="server" />
  <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false">
      <Columns>
          <asp:BoundField DataField="Name" />
          <asp:TemplateField HeaderText="" ItemStyle-HorizontalAlign="Center">
              <ItemTemplate>
                  <asp:HiddenField ID="hfCountry" runat="server" Value='<%# Eval("Country") %>' />
                  <asp:UpdateProgress ID="UpdateProgress1" runat="server" AssociatedUpdatePanelID="UpdatePanel1">
                      <ProgressTemplate>
                          <div class="modal">
                              <div class="center">
                                  <img alt="" src="progress.gif" />
                              </div>
                          </div>
                      </ProgressTemplate>
                  </asp:UpdateProgress>
                  <asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
                      <Triggers>
                          <asp:AsyncPostBackTrigger ControlID="Link" EventName="Click" />
                      </Triggers>
                      <ContentTemplate>
                          <asp:Button ID="Link" runat="server" Text="Download" OnClick="OnDownload" CssClass="buttonLink" />
                      </ContentTemplate>
                  </asp:UpdatePanel>
              </ItemTemplate>
          </asp:TemplateField>
      </Columns>
  </asp:GridView>
  <style type="text/css">
      body {
          margin: 0;
          padding: 0;
          font-family: Arial;
      }
   
      .modal {
          position: fixed;
          left: 0;
          z-index: 999;
          height: 100%;
          width: 100%;
          top: 0;
          background-color: Black;
          filter: alpha(opacity=60);
          opacity: 0.6;
          -moz-opacity: 0.8;
      }
   
      .center {
          z-index: 1000;
          margin: 30px auto;
          padding: 10px;
          width: 130px;
          background-color: White;
          border-radius: 10px;
          filter: alpha(opacity=100);
          opacity: 1;
          -moz-opacity: 1;
      }
   
          .center img {
              height: 128px;
              width: 128px;
          }
   
      .buttonLink {
          background: none !important;
          border: none;
          padding: 0 !important;
          font-family: arial, sans-serif;
          color: #069;
          text-decoration: underline;
          cursor: pointer;
      }
  </style>
  

  On the OnDownload I set that will navigate to the next form in the website for export xls file

  protected void OnDownload(object sender, EventArgs e)
  {
      Button btn = (Button)sender;
      GridViewRow row = btn.NamingContainer as GridViewRow;
   
      string ese = (row.FindControl("hfCountry") as HiddenField).Value;
   
      if (!string.IsNullOrEmpty(ddl.SelectedValue))
      {
          Response.Redirect("xls.aspx?e=" + ese.ToString() + "&a=" + ddl.SelectedValue);
      }
      else
      {
          Response.Redirect("xls.aspx?e=" + ese.ToString());
      }
  }
  

  With this code my problem is after downloading the excel file from the page xls.aspx my loading screen it does not close and remains fixed on the browser...

  How to do resolve this?

  Thanks in advance for any help

• • Reply
  XuDong Peng

  Contributor

  2080 Points

  664 Posts

  Re: After downloading file the loading screen it does not close ASP NET C#

  Feb 22, 2021 09:39 AM|XuDong Peng|LINK

  Hi Edward Sheriff Curtis,

  Edward Sheriff Curtis

  With this code my problem is after downloading the excel file from the page xls.aspx my loading screen it does not close and remains fixed on the browser...

  You seem to want the page to automatically close the page after the download file response is complete?

  If this is the case, I think you can try it like this:

  Response.ContentType = "xxx/xxx";
              Response.AppendHeader("Content-Disposition", "attachment; filename=xxx.xxx");
              Response.TransmitFile(filePath);
              Response.End();
              System.Threading.Thread.Sleep(2000);
              //ClientScript.RegisterClientScriptBlock(Page.GetType(), "script", "window.close();", true);
              Response.Write("<script language=javascript>this.window.opener = null;window.open('','_self'); window.close();   </script>");

  But in chrome browser, you can't close the page by script, you can only do it manually.

  The code works on IE and Edge, or you can choose to return to the previous page after the download is complete.

  Best regards,

  Xudong Peng

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