attachEvent

attaches the handler to an inner event of the component

function attachEvent(
    // the event name, case-insensitive
    type: string,
    // the function object or name
    functor: function,
    // optional, the event id
    id?: string
): void

Example

dgrid.attachEvent("onAfterLoad",function(){
  this.select(2);
});

also check the next samples:

Chart: Events

Details

How the handler is provided

You can use the method with an inline function or provide just the global function reference. In the second case, be sure that the function is visible from the calling point.

function doTask(){ ... };
dgrid.attachEvent("onBeforeLoad", doTask); // uses the reference

The handler id

The last parameter allows you to define the id of the attached handler. If it was not specified, some unique value will be assigned as the id. The only purpose of such id - detaching the handler from an event (in most cases you don’t need to care about the handler id).

Handler function parameters

Check the related documentation to get the full list of parameters. The amount and meaning will vary for different events.

The value which is returned by an event can change behavior of component. Returning true or nothing will be considered as the positive signal, while returning false will be considered as a signal to stop the current activity.