Special Behaviour when Mouse Over Event Happens

You can specify special behaviour for tree items when you pass your mouse over the item. If you set 'overexpand' property in 'true' tree items will expand whenever mouse is passed over it.

"style"	 : {
	"overexpand" : true
	...

If you'd like that only one tree branch is expanded at the moment set 'singlecol' property in 'true':

"style"	 : {
	"singlecol" : true
	...

Example - mouse over behaviour

You can see an example and complete code here - Mouse Over Behaviour Example [popup]

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