Using Ajax control in User Control (ascx) [modified]

Muc_

Tach experts .. I have ne problem where I do not know to solve that... I have a control that is added in a page. Basically it is a Content Management System. It selects a new page and can add different controls. In the control itself, I use a ModalPopupvon Ajax, but who needs a script manager. Now I wonder whether in the side where the control is already added a ScriptManager exists otherwise I add one. Here

void AddScriptMagnager()
{
//get the existing ScriptManager if it exists on the page

        ScriptManager \_scriptMan = ScriptManager.GetCurrent(this.Page); 

        if (\_scriptMan == null)
        {
            //create new ScriptManager and EnablePartialRendering or whatever
            \_scriptMan = new ScriptManager();
            \_scriptMan.EnablePartialRendering = true;
            \_scriptMan.EnableScriptLocalization = true;

            if (this.MuMPage.Page.Form != null)
            {
                foreach (Control ctrl in this.MuMPage.Page.Form.Controls)
                {
                  this.MuMPage.Page.Controls.Add(\_scriptMan);
                }                    
            }
        }
    }

I always get the error that a Extendersteuerelemente may not be registered before PreRender. I appreciate any help and thanks a lot in advance.

modified on Monday, June 21, 2010 9:02 AM

Not Active · modified on Monday, June 21, 2010 9:02 AM

[CODE] There is a defined tag for this, <pre> implemented by clicking the "code block" toolbar item directly above this textarea. Please correct your post and read the posting guidelines for this site.

I know the language. I've read a book. - _Madmatt

Not Active · modified on Monday, June 21, 2010 9:02 AM

Add where are you calling the AddScriptManager method? Obviously no in the PreRender event handler. The common implementation is to include a ScriptManger in the master page so it is not necessary to be included in child pages and is available for use.

I know the language. I've read a book. - _Madmatt

Muc_

but what shall i do if there is none available in the master page?

Not Active

You wrote the master page correct? Add a ScriptManager! If you did not write the master page then the author probably did not intend for Ajax to be used in this manner

I know the language. I've read a book. - _Madmatt

Muc_

Nope, i c´ant! This is Standart site for everysite inour CMS. I'm trying to do exactly that! Just when none is there in the page where I try to add the control at runtime and add a Script Manager. And i get Collection was modified; enumeration operation may not execute.

Muc_

HELLO, I now have a template contains a script manager. but I get this error message but still Extender controls may not be registered after PreRender

Not Active

HELLO, the error tells you what to do

I know the language. I've read a book. - _Madmatt

Muc_

but what is the right event to put into?

Not Active

Can you do nothing on your own? Go to the address bar of your browser and type, www.google.com, then click GO.

I know the language. I've read a book. - _Madmatt

Muc_

is already done! thxs for your helps.

modified on Tuesday, June 22, 2010 3:12 AM