Ext4.1动态生成checkboxgroup对象
Ext4.1动态生成checkboxgroup对象的原理很简单，用ext的ajax类库发送ajax请求动态页获得items对象的字符串内容，eval生成json对象，然后再生成checkboxgroup对象，配置checkboxgroup的items对象为返回的json字符串内容即可【注意要eval生成json对象，不能直接是字符串】。
数据源data.txt内容
[{"boxLabel":"Item1","name":"name","checked":true,"inputValue":1}
,{"boxLabel":"Item2","name":"name","checked":true,"inputValue":2}
,{"boxLabel":"Item3","name":"name","inputValue":3}
,{"boxLabel":"Item4","name":"name","inputValue":4}]
示例代码如下
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Ajax动态生成Checkbox Groups对象</title>
<link rel="stylesheet" type="text/css" href="../../resources/css/ext-all.css" />
<script type="text/javascript" src="../../ext-all.js"></script>
<link rel="stylesheet" type="text/css" href="../shared/example.css" />
<script type="text/javascript">
Ext.onReady(function(){
Ext.Ajax.request({
url:'data.txt' ,//这里改成动态页，负责生成和data.txt一样的json字符串内容
success: function(resp,opts) {
var items= eval('('+resp.responseText+')');
Ext.create('Ext.form.CheckboxGroup',{columns: 3,items:items,renderTo:document.body});
} ,
failure: function(resp,opts){alert('ERROR'+resp.status+'\n'+resp.responseText)}
});
});
</script>
</head>
<body>
<h1>Ajax动态生成Checkbox Groups对象</h1>
</body>
</html>
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