Script Manager in SharePoint pages

Question

I am working on some mobile web parts and have got into a problem.

My issue is that I have a custom web part which is a mobile web part. I have got everything working and I can see the web part in the SharePoint mobile pages. I want to have an update panel in my web part and for that I added the scriptmanager on the user control web part.

Now when I see my web part on the page I get an error Object reference not set to an instance of an object. If I remove the update panel and script manager, everything is working fine as expected. So if someone can tell me how can I get script manager running in a SharePoint mobile page I would really appreciate it.

The page which SharePoint uses to display mobile web parts is mblwp.aspx and I guess there is no master page in mobile pages.

Answer 1

Try adding the following to the CreateChildControls override of your user control code-behind:

    if (System.Web.UI.ScriptManager.GetCurrent(this.Page) == null)
    {
        System.Web.UI.ScriptManager scriptMgr = new System.Web.UI.ScriptManager();
        this.Controls.AddAt(0, scriptMgr);
    }

...before base.CreateChildControls();

Should cause the script manager to be added correctly, but only if one is not already present. If that doesn't work, try:

this.Page.Form.Controls.Add(scriptMgr);

in place of:

this.Controls.AddAt(0, scriptMgr);

Hope that does the trick.