为什么我的听众不能在extjs上运行？

Question

here is the code and also i want onPaste event instead of click but nothing working

var mpan0 = new Ext.form.TextField({
    name:'mpan[]' ,
    value:0 , 
    allowblank:false , 
    enableKeyEvents:true ,
    fieldLabel:'Mpan',
    maxLength:2,
    width:35
    });

mpan0.addListener('click', function(){ 
    alert( "amiy");
});

Answer 1

Ext.form.TextField does not have a 'click' event. You can see the events it does support at:

http://www.sencha.com/deploy/dev/docs/?class=Ext.form.TextField

The closest I can think of to what you are seeking is the 'focus' event.

If you really must have a click event you can try attaching a listener to the field object's fundamental DOM element:

Ext.form.TextField({
    listeners: {
        afterrender: function( field ) {
            field.getEl().on('click', function( event, el ) {
                 // do something on click
            });
        }
    }
});

I can't claim to know how successful that will be, however.

Documentation on Ext.Element's click event can be found at:

http://www.sencha.com/deploy/dev/docs/?class=Ext.Element

Answer 2

yourtextfield = new Ext.form.TextField({
    id:'yourtextfield ',
    readOnly : true,
    listeners: {'render': function(cmp) { 
      cmp.getEl().on('click', function( event, el ) {
      alert("You click text field");
      });            
    }}        
});

This works.

Answer 3

ExtJs uses on , so it should be

mpan0.on("click", function(){
    alert("amiy");
});

But you can also add it declaratively

var mpan0 = new Ext.form.TextField({
    name:'mpan[]' ,
    value:0 , 
    allowblank:false , 
    enableKeyEvents:true ,
    fieldLabel:'Mpan',
    maxLength:2,
    width:35,
    listeners: {
        "click": function() {
            alert("amiy");
        }
    }
});