Treeview collapses or expands over any other UserControl

[Veerendra]

Hi,
I'm using "RadTreeView" with IsExpandOnSingleClickEnabled="True" property this working fine but i've a user control Over this node for(Edit/Delete/Up and Down button). When i'm using single click on Edit/Delete or Up and Down button TreeView are collapses or expands property working i don't want this(Over the user control).

 

What i do?

 

 

 

Thank's
Veerendra