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Strange behaviour when Rendering RadAjaxManager

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Denny
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Denny asked on 29 Jul 2008, 10:58 AM

Hi I am trying to add the RadAjaxManager programmatically to a page and override the Render method on the page.  Here is my code:

using System;  
using System.Collections;  
using System.Configuration;  
using System.Data;  
using System.Web;  
using System.Web.Security;  
using System.Web.UI;  
using System.Web.UI.HtmlControls;  
using System.Web.UI.WebControls;  
 
using Telerik.Web.UI;  
namespace Neetrix.Web.Administration.TempFiles  
{  
    public partial class TestRender : Page  
    {  
         
        protected void Page_Load(object sender, EventArgs e)  
        {  
            RadAjaxManager AjaxManager = new RadAjaxManager();  
            AjaxManager.ID = "RadAjaxManager1";              
 
            HtmlForm form = new HtmlForm();  
            form.Controls.Add(new ScriptManager());  
 
            form.Controls.Add(AjaxManager);  
 
            form.Controls.Add(new LiteralControl("hello"));  
            this.Page.Controls.Add(form);  
        }  
 
        protected override void Render(HtmlTextWriter writer)  
        {  
            writer.Write("<html>");  
            base.Render(writer);  
            writer.Write("</html>");  
        }  
    }      
}  
 

After compiled and run it, it repeating itself when it reach the line "base.render(writer)". If you view page source on the page, you can clearly see that it duplicate both "<html>" and </html>" tags. If I took out the line "form.Controls.Add(AjaxManager)", it will behave correctly. So my question is, is it a bug or is there something i have missed? Thanks in advanced.

Denny 

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Maria Ilieva
Telerik team
answered on 29 Jul 2008, 11:10 AM
Hi Denny,

 Please review the following help topic, which elaborates on adding the Ajax settings programatically. 
I hope this helps.

Kind regards,
Maria Ilieva
the Telerik team

Check out Telerik Trainer, the state of the art learning tool for Telerik products.
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Denny
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answered on 29 Jul 2008, 11:43 AM
Hi

Thanks for the quick reply. The example link you given shows that I need to add the Ajax Manager control in the frontend and set the settings thru backend, but my problem is, I need to produce everything thru backend, I like to use RadAjaxManager, but is it possible to add it completely in the backend without those strange behaviour?

Best Regards,

Denny
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Denny
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answered on 21 Aug 2008, 11:42 AM
any suggestions? anyone?

thanks

Denny
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Mishel
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answered on 21 Aug 2008, 11:47 AM
Hi,

I had the same problem in my project.
Unfortunately the only thing you could do is to add the manager in the .aspx page and make the setting programmatically
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Denny
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Answers by
Maria Ilieva
Telerik team
Denny
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Mishel
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