I'm using KendoUI (v2015.1.318) with AngularJS (v1.3.14). After every click on a node, the data will be fetched from an API.
After selecting some items and clicking on the button "add", the items will be added in a seperated list, the expanded treenodes must stay visible but all the
checked items must be unchecked.
After I iterated through the datasource to uncheck the checked items , I have call SetDataSource again. When I have expanded a lot of nodes and checked a few, the UI freezes some seconds while it's processing.
I was wondering if there wasn't a more efficient way to execute this.
I made an example without API call: