Programmatically call handler of a button event?

问题

How can I call a handler from an button event? I want to click event a button and call that button handler?

Ext.getCmp('buttonID').click();
/// How to fire handler of that button?

回答1:

You may get this way:

var button = Ext.getCmp('buttonID'); 
button.fireEvent('click', button);

The second param must be button if you want to keep hanlder logic equals to common button's clicking

回答2:

Ext itself does it this way:

var btn = Ext.getCmp('buttonID');
var e = null; // we don't have any event, so let's use nothing
Ext.callback(btn.handler, btn.scope, [btn, e], 0, btn);

If your handler depends on the event, it will not work...

来源：https://stackoverflow.com/questions/29834028/programmatically-call-handler-of-a-button-event