Using Sitecore 10.1 and sometimes getting the below error on Folder tab. Checked the log files and seeing this:

7644 08:38:39 ERROR Rendering of Folder.xaml.xml has been failed with exception: 'The control ItemList has not been initialized'
Exception: Sitecore.Web.UI.XamlSharp.ControlException
Message: The control ItemList has not been initialized
Source: Sitecore.Client
   at Sitecore.Shell.Applications.ContentEditor.Editors.Folder.FolderPage.Render()
   at Sitecore.Shell.Applications.ContentEditor.Editors.Folder.FolderPage.OnLoad(EventArgs e)

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Any idea why it's showing this error?

  • are you facing this after Sitecore upgrade or in vanilla instance of Sitecore 10.1. Commented Sep 17, 2021 at 12:50

1 Answer 1


We were facing similar issues recently.

We have fixed the issue by restarting Sitecore Client and Server by restarting App server / locally you can kill sc related w3wp process.

We have checked what is called when you hit Folder tab and it is this:

enter image description here

We looked into this further by going to class Sitecore.Shell.Applications.ContentEditor.Editors.Folder.FolderPage in Sitecore.Client.dll and it's Render method:

enter image description here

We were wondering why the error was saying

ItemList is not initialized

when clearly in xaml file itself Scrollbox with ID ItemList was initialized:

enter image description here

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