How to use Ext.each? - Ext JS

于 2009-04-20 23:33:18 发布 · 86 阅读

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本文讨论了在Ext.js中使用Ext.each方法时遇到的问题，特别是当尝试遍历通过CompositeElement类获得的对象时出现的错误。文章提供了正确的使用方法，并解释了如何使用CompositeElement的each方法来替代。

I'm trying to use Ext.each.

It throughs an error: this.el.dom has no properties

Here's how I call it:

	var ds = ctxtObj.select("input.date", true);//.on("click", this.showDate);
	Ext.each(ds, this.attachDate, this);

attachDate looks like this:

 		attachDate : function(item, index, allItems){
 			var d = new Ext.form.DateField({ 
				target: item, 
				value: '02/28/2007', 
				format: 'm/d/Y'});
		},

I tried casting 'item' in the function to an element, but that didn't change it.

Any idea what I'm doing wrong?
Thanks...martin

03-04-2007, 12:59 AM

Each operates on an array. A composite element is not an array. However, the CompositeElement class has it's own each method to make this easy.

var ds = ctxtObj.select("input.date", true);//.on("click", this.showDate);
//Ext.each(ds, this.attachDate, this);
ds.each(this.attachDate, this);

However, you can use it's "elements" property (array) with each.