从书中看到这个通过重写Ext.data.Store的applySort函数实现Grid支持中文排序，摘抄下来。以备不时之需。
 1Ext.data.Store.prototype.applySort = function(){
 2    if(this.sortInfo && !this.remoteSort){
 3        var s = this.sortInfo, f = s.field;
 4        var st = this.fields.get(f).sortType;
 5        var fn = function(r1,r2){
 6            var v1 = st(r1.data[f]),v2 = st(r2.data[f]);
 7            if(typeof(v1)=="string"){
 8                return v1.localeCompare(v2);
 9            }
10            return v1 > v2 ?1:(v1 < v2?-1:0);
11        };
12        this.data.sort(s.direction, fn);
13        if(this.snapshot && this.snapshot != this.data){
14            this.snapshot.sort(s.direction,fn);
15        }
16    }
17}
这段代码可以放在ext-all.js文件的最后，或放到html页面的最上面。主要是要在EXT初始化之后，实际代码调用之前执行。
附例如下：
 1<html>
 2    <head>
 3        <meta http-equiv="Content-Type" content="text/html; charset=gbk">
 4        <title>03.grid</title>
 5        <link rel="stylesheet" type="text/css" href="../../resources/css/ext-all.css" />
 6        <script type="text/javascript" src="../../adapter/ext/ext-base.js"></script>
 7        <script type="text/javascript" src="../../ext-all.js"></script>
 8        <script type="text/javascript">
 9Ext.data.Store.prototype.applySort = function() {
10    if (this.sortInfo && !this.remoteSort) {
11        var s = this.sortInfo, f = s.field;
12        var st = this.fields.get(f).sortType;
13        var fn = function(r1, r2) {
14            var v1 = st(r1.data[f]), v2 = st(r2.data[f]);
15            if (typeof(v1) == "string") {
16                return v1.localeCompare(v2);
17            }
18            return v1 > v2 ? 1 : (v1 < v2 ? -1 : 0);
19        };
20        this.data.sort(s.direction, fn);
21        if(this.snapshot && this.snapshot != this.data) {
22            this.snapshot.sort(s.direction, fn);
23        }
24    }
25};
26
27
28Ext.onReady(function(){
29
30    var cm = new Ext.grid.ColumnModel([
31        {header:'编号',dataIndex:'id',sortable:true,width:35},
32        {header:'名称',dataIndex:'name',sortable:true,width:80},
33        {id:'descn',header:'描述',dataIndex:'descn',sortable:true,width:200}
34    ]);
35
36    var data = [
37        ['1','啊','descn1'],
38        ['2','啵','descn2'],
39        ['3','呲','descn3'],
40        ['4','嘚','descn4'],
41        ['5','咯','descn5']
42    ];
43
44    var store = new Ext.data.Store({
45        proxy: new Ext.data.MemoryProxy(data),
46        reader: new Ext.data.ArrayReader({}, [
47            {name: 'id'},
48            {name: 'name'},
49            {name: 'descn'}
50        ]),
51        sortInfo: {field: "name", direction: "ASC"}
52    });
53    store.load();
54
55    var grid = new Ext.grid.GridPanel({
56        autoHeight: true,
57        renderTo: 'grid',
58        store: store,
59        cm: cm,
60        autoExpandColumn: 'descn'
61    });
62
63});
64        </script>
65    </head>
66    <body>
67        <script type="text/javascript" src="../examples.js"></script>
68        <div id="grid"></div>
69    </body>
70</html>
71