dynamically adding controls to page RSS

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  afsarsal_yah...

  Member

  52 Points

  23 Posts

  dynamically adding controls to page

  Oct 31, 2012 03:46 PM|LINK

  Hello,

  I'm trying to add controls to page without postback with ajax.

  The following code works but it adds the controls at once not one by one. I want that it dynamically adds and show the controls.

  I've seen several php sites that dynamically refresh the page content one by one without postback.

  C# code:

  protected void Button1_Click(object sender, EventArgs e)
  {

     System.Net.WebClient c = new System.Net.WebClient();
     for (int i = 0; i < 10; i++)
     {
        string result = c.DownloadString("http://www.gmail.com");
        Label lbl = new Label();
        lbl.ID = "lbl" + i.ToString();
        lbl.Text = "lbl" + i.ToString();
        UpdatePanel1.ContentTemplateContainer.Controls.Add(lbl);
        UpdatePanel1.Update();

        System.Threading.Thread.Sleep(500);
     }

  }

  HTML code:

  <asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
  <ContentTemplate>
  <asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click" />
  </ContentTemplate>
  </asp:UpdatePanel>

  We need this because In our free seo tools website we have several tools that we need to show the results to users dynamically.

  You may see a page that we want to work this way, http://www.onlineseoanalyzer.com/Free-SEO-Tools/Free-Backlink-Generator.aspx

  This tool generate backlinks on appr. 100 websites for a given website, but it shows the result after all backlink generation completed. We want to show the result for every backlink generation is done.

  • Edited by afsarsal_yahoo on Oct 31, 2012 03:49 PM
  • Edited by afsarsal_yahoo on Oct 31, 2012 03:51 PM
  • Edited by afsarsal_yahoo on Oct 31, 2012 03:52 PM
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  chetan.sarod...

  All-Star

  65749 Points

  11148 Posts

  Re: dynamically adding controls to page

  Nov 01, 2012 03:30 AM|LINK

  Refer this

  http://msmvps.com/blogs/luisabreu/archive/2007/02/15/adding-controls-to-an-updatepanel-through-code.aspx

  http://forums.asp.net/t/1808438.aspx/1

  http://forums.asp.net/t/1474986.aspx/1

  Chetan Sarode
  Senior Software Engineer,
  Approva Systems Pvt Ltd, Pune, India.
  
  • Marked as answer by Young Yang - MSFT on Nov 09, 2012 02:09 AM
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  Catherine Sh...

  All-Star

  23372 Points

  2490 Posts

  Microsoft

  Re: dynamically adding controls to page

  Nov 07, 2012 01:25 AM|LINK

  Hi,

  afsarsal_yahoo

  This tool generate backlinks on appr. 100 websites for a given website, but it shows the result after all backlink generation completed. We want to show the result for every backlink generation is done.

  As far as I know, you can't update the UpdatePanel when every label is added. The UpdatePanel will update when all generations complete. The reason is that this is a single-threaded.

  Best wishes,

  Please mark the replies as answers if they help or unmark if not.
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  • Marked as answer by Young Yang - MSFT on Nov 09, 2012 02:09 AM