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Showing content from https://docs.dhtmlx.com/suite/tree/events_handling/ below:

Event Handling Attaching event listenersâ

You can attach event listeners with the tree.events.on() method:

tree.events.on("itemClick", function(id, e){
    console.log("The item with the id "+ id +" was clicked.");
});

note

The names of events are case-insensitive.

Related sample: Tree. Events

Detaching event listenersâ

To detach events, use tree.events.detach():

tree.events.on("itemClick", function(id, e){
    console.log("The item with the id "+ id +" was clicked.");
});

tree.events.detach("itemClick");

Calling eventsâ

To call events, use tree.events.fire():

tree.events.fire("name",args);
// where args is an array of arguments

The list of eventsâ

The full list of events is available in the related API section.

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