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Handling Events

Attaching events

The attachEvent method can be used to add an event handler to any of the available events. The method should to be called with the following parameters:

function doSome() {
    // your code here
myTreeView.attachEvent("onSomeEvent", doSome);

Several handlers can be attached to one and the same event and all of them will be executed.

The names of the events are case-insensitive.

Detaching events

There is a simple way of removing an event handler:

// attach event
var eventId = myTreeView.attachEvent("onSomeEvent", doSome);
// detach event

Naming tips

  • events which start with "before" - can be blocked, returning true from such an event handler will confirm the operation, returning false or not returning anything will block the default event processing;
  • events which start with "after" - can't be blocked, but have a sibling event the name of which starts with "before".

The list of events

You can find the full list of events in the TreeView API.

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