Unpin all AutoHide window

You can Unpin all AutoHidden windows by using the method UnPinAutoHide().This can be shown below:

XAML

<syncfusion:DockingManager Name="DockingManager">            

	<Grid syncfusion:DockingManager.State="AutoHidden"/>            
	
	<Grid syncfusion:DockingManager.State="AutoHidden"/>           

	<Grid syncfusion:DockingManager.State="AutoHidden"/>            
	
	<Grid syncfusion:DockingManager.State="AutoHidden"/>  
	
</syncfusion:DockingManager>

C#

DockingManager.UnPinAllAutoHide();