ExtJs 4.0 动态生成Grid

 1 callback : function(options, success, response) {
 2                              alert(response.responseText);
 3                             var r = Ext.decode(response.responseText);
 4                                if ("3"==r.state) {
 5                                     var columnModel = [];
 6                                     var columns = [];
 7                                     for(var i=0;i<r.responseResult.columnList.length;i++){//因为后台返回的类型为字符串，要将字符串转换成Object
 8                                         var v = r.responseResult.columnList[i];
 9                                         var obj = new Object();
10                                         obj = {text:v,dataIndex:v,width:120};
11                                         columnModel[i]=obj;
12                                         columns[i] = v;
13                                     }
14                                     
15                                     var datas = [];
16                                     for(var i=0;i<r.responseResult.dataList.length;i++){//转换成Object
17                                         var v = r.responseResult.dataList[i];
18                                         var sp = v.split(",");
19                                         var objData = new Object();
20                                         for(var j=0;j<sp.length;j++){
21                                             var columnName = sp[j].substring(0,sp[j].indexOf(":"));
22                                             var columnData = sp[j].substring(sp[j].indexOf(":")+1,sp[j].length);
23                                             objData[columnName] = columnData;
24                                         }
25                                         datas[i]=objData;
26                                     }
27                                     var store = Ext.create(‘Ext.data.Store‘, {
28                                         fields : columns,
29                                         data:datas
30                                     });
31                                     //注意columns和columnModel必须为数组形式的Object，如果是数组形式的字符串会报错！
32                                     Ext.getCmp("syDataSourceGird").reconfigure(store,columnModel);  
33                                     return ;
34                                }  
35                                Ext.create(‘global.RespWin‘, {stateOkText : r.msg}).stateError();
36                           }