issue with Ajax and dynamic controls

[Bert]

Hi,

I'm creating a control dynamically with a lot of child controls (ex dropdownlists).

DropDownListControl ddlControl = (DropDownListControl)this.LoadControl("FormControls/DropDownListControl.ascx");
ddlControl.ID = "ddlControl_" + groupTable.Rows.Count + "_" + columnIndex;
RadAjaxManager.GetCurrent(Page).AjaxSettings.AddAjaxSetting(this, ddlControl);

With that last sentence I thougth the update the dynamic created dropdownlists if the parent usercontrol (this) was changed.

When I run this code and change the parent usercontrol he gives me the following exception:
Microsoft JScript runtime error: Sys.InvalidOperationException: Could not find UpdatePanel with ID 'ctl00_ddlControl_1_0Panel'. If it is being updated dynamically then it must be inside another UpdatePanel.

Can anyone tell me how I have to solve this without losing the creation of the dynamic child controls?

Thanks
Bert

[Maria Ilieva]

Hi Bert,

Could you please open a regular support ticket and send us sample runnable project which replicates the described problem. We will test the application locally and will advise you further.

Regards,
Maria Ilieva
the Telerik team

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[Ade]

I am having the same issue with a multiview and ajaxmanager, i get this error..please help, i found nothing helpful on the forums yet:

Microsoft JScript runtime error: Sys.InvalidOperationException: Could not find UpdatePanel with ID 'ctl00_ContentPlaceHolderMain_ctl00_ContentPlaceHolderMain_ParentTree_ParentTree_EntityTreePanel'.
 If it is being updated dynamically then it must be inside another UpdatePanel.

[Maria Ilieva]

Hello Ade,

The descried error appears in cases you have nested UpdatePanels on the page. This means that if some control is updated with RadAjaxManager and with RadAjaxPanel or asp UpdatePanel at the same time the error could appear. Please elaborate a bit more on your scenario and the Ajax settings you have so we could further research on the problem.

All the best,
Maria Ilieva
the Telerik team

[Maria Ilieva]

Hello Ade,

The descried error appears in cases you have nested UpdatePanels on the page. This means that if some control is updated with RadAjaxManager and with RadAjaxPanel or asp UpdatePanel at the same time the error could appear. Please elaborate a bit more on your scenario and the Ajax settings you have so we could further research on the problem.

All the best,
Maria Ilieva
the Telerik team

[Ade]

hello Maria, i have posted more details on a new post here:

http://www.telerik.com/community/forums/aspnet-ajax/ajax/397790.aspx

thanks