diff --git a/How-to-disable-the-element-which-state-is-document-in-wpf-dockingmanager/README.md b/How-to-disable-the-element-which-state-is-document-in-wpf-dockingmanager/README.md
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--- a/How-to-disable-the-element-which-state-is-document-in-wpf-dockingmanager/README.md
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 # How to disable the element which state is Document in WPF DockingManager?
 
-By default, child element of DockingManager (which has state as Document) will be added as content of TabItemExt in DocumentTabControl. To disable the document child element of [WPF DockingManager](https://www.syncfusion.com/wpf-controls/docking), we must retrieve the TabItemExt element from DocumentTabControl and set IsEnabled as false to the retrieved element. For instance, we have disabled all the items in the DocumentTabControl, except SelectedItem.
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+By default, child element of DockingManager (which has state as Document) will be added as content of TabItemExt in DocumentTabControl. To disable the document child element of [WPF DockingManager](https://www.syncfusion.com/wpf-controls/docking), we must retrieve the TabItemExt element from DocumentTabControl and set IsEnabled as false to the retrieved element. For instance, we have disabled all the items in the DocumentTabControl, except SelectedItem.
+
+KB article - [How to disable the element which state is Document in WPF DockingManager?](https://www.syncfusion.com/kb/8657/how-to-disable-the-element-which-state-is-document-in-wpf-dockingmanager)