Hi bhushanborole

See the attached linke below for a fix

https://help.k2.com/kbs100103

https://community.k2.com/t5/K2-Five/Tree-control-The-quot-Tree-is-Changed-quot-event-executes/ta-p/102603

Should you find the information from the article useful or leading you to the answer please mark as "Solution and/or Kudo", as it will assist other k2 developers with relevant information in the near future.

Best Regards

Elvis

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I already went through that articles and if i set the Load Ahead Level property to 2, It works only upto 2 levels.

I have more than 9 level of tree structure.  If we setup Load Ahead Level property more than 2 it causes performance issue as well.

Hi bhushanborole

You can log a ticket to support and request for  assistance 

Regards

Elvis

Below solution works for me and it is work around for Tree View Control:-

• Keep Load Ahead Level property to 1 (As default setting) or set to none.
• On Tree Change Event add below Advance Condition to check ID of parent node if it not equal then only execute logic(rules) that you want.
• Add Data Label(Flag) on View or Form and set Value as 0.
• Add below condition in Changed Event:-
• When Tree is Changed
•    If an Advanced Condition is True (Tree is not empty & Flag is not equal to ID) See image Tree.png
•           Execute Your Logic Rules.
•           Set Flag = Tree Current ID (View -->Control-->Tree-->Data Source-->ID) See image Tree1.png

So on changed event it will not loop mutiple time for same ID of your clickable parent node.