日期:2014-05-16 浏览次数:20521 次
最近新学ext,被checkBoxGroup 的动态添加删除搞的痛不欲生,在不停的尝试之后终于搞定了~
从后台拿数据再用ajax稍微改造下就可以了。
效果图:
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test.js
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function checkAll(groupId){ var group = Ext.getCmp(groupId); var length = group.items.getCount(); var isCheck=group.items.items[0].checked; for(var i=1;i<length;i++){ if(isCheck) group.items.items[i].setValue(true); else group.items.items[i].setValue(false); } //alert(group.getValue()); } Ext.onReady(function(){ var myGroup = new Ext.form.CheckboxGroup({ id:'myGroup', xtype: 'checkboxgroup', fieldLabel: 'Single Column', // Put all controls in a single column with width 100% columns: 4, items: [ {boxLabel: '全选', name: 'cb-col-0',id:'c0',listeners:{ check:function(){ checkAll('myGroup'); } }}, {boxLabel: 'Item 1', name: 'cb-col-1',id:'c1'}, {boxLabel: 'Item 2', name: 'cb-col-2',id:'c2', checked: true}, {boxLabel: 'Item 3', name: 'cb-col-3',id:'c3'} ] }); var button = new Ext.Button({ text: 'add' ,handler: function(){ var length = myGroup.items.getCount(); var col = myGroup.panel.items.get(myGroup.items.getCount()%myGroup.panel.items.getCount()); var newItem = new Ext.form.Checkbox( { boxLabel: 'Item '+length, name: 'cb-col', listeners:{ check:function(){ if(this.checked) alert(this.id); } }}); col.add(newItem); myGroup.items.add(newItem); myGroup.panel.doLayout(); } }); var button_r = new Ext.Button({ text: 'remove' ,handler: function(){ var items = myGroup.items; var length = items.getCount(); var lastItems = myGroup.items.items[length-1]; lastItems.destroy(); myGroup.items.remove(lastItems.id); myGroup.items.remove(lastItems); } }); var form = new Ext.form.FormPanel({ border:false, labelAlign:"right", buttonAlign:'center', labelWidth:150, frame:true, baseParams : {create : true } }); form.add(myGroup); form.add(button); form.add(button_r); form.render('form'); });
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test.html
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?<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html> <link rel="stylesheet" type="text/css" href="../extjs/resources/css/ext-all.css" /> <script src="../extjs/adapter/ext/ext-base.js" type="text/javascript" charset="utf-8"></script> <script src="../extjs/ext-all-debug.js" type="text/javascript" charset="utf-8"></script> <script src="test.js" type="text/javascript" charset="utf-8"></script> <head > <title >测试 </title> </head> <body > <div id="form"></div> </body> </html>