学步园

           国际上都是用ascii码进行排序，而按照汉语的使用习惯，我们需要按照拼音的首字母进行排序

          为了让Grid实现中文排序功能，我们需要重写Ext.data.Store的applySort函数

 
                        Ext.data.Store.prototype.applySort = function(){  
                                if(this.sortInfo && !this.remoteSort){  
  
                                        var s = this.sortInfo, f = s.field;  
  
                                        var st = this.fields.get(f).sortType;  
  
                                        var fn = function(r1, r2){  
  
                                                var v1 = st(r1.data[f]), v2 = st(r2.data[f]);  

                                                if(typeof(v1) == "string"){   
  
                             return v1.localeCompare(v2);
  
                        } 
                       return v1 > v2 ? 1 : (v1 < v2 ? -1 : 0);  
  
                                        };  
  
                                        this.data.sort(s.direction, fn);  
  
                                        if(this.snapshot && this.snapshot != this.data){  
  
                                                this.snapshot.sort(s.direction, fn);  
  
                                        }  
  
                                }  
  
                        };  

使用示例

Ext.data.Store.prototype.applySort = function() {
    if (this.sortInfo && !this.remoteSort) {
        var s = this.sortInfo, f = s.field;
        var st = this.fields.get(f).sortType;
        var fn = function(r1, r2) {
            var v1 = st(r1.data[f]), v2 = st(r2.data[f]);
            if (typeof(v1) == "string") {
                return v1.localeCompare(v2);
            }
            return v1 > v2 ? 1 : (v1 < v2 ? -1 : 0);
        };
        this.data.sort(s.direction, fn);
        if(this.snapshot && this.snapshot != this.data) {
            this.snapshot.sort(s.direction, fn);
        }
    }
};




Ext.onReady(function(){


    var cm = new Ext.grid.ColumnModel([
        {header:'编号',dataIndex:'id',sortable:true,width:35},
        {header:'名称',dataIndex:'name',sortable:true,width:80},
        {id:'descn',header:'描述',dataIndex:'descn',sortable:true,width:200}
    ]);


    var data = [
        ['1','啊','descn1'],
        ['2','啵','descn2'],
        ['3','呲','descn3'],
        ['4','嘚','descn4'],
        ['5','咯','descn5']
    ];


    var store = new Ext.data.Store({
        proxy: new Ext.data.MemoryProxy(data),
        reader: new Ext.data.ArrayReader({}, [
            {name: 'id'},
            {name: 'name'},
            {name: 'descn'}
        ]),
        sortInfo: {field: "name", direction: "ASC"}
    });
    store.load();


    var grid = new Ext.grid.GridPanel({
        autoHeight: true,
        renderTo: 'grid',
        store: store,
        cm: cm,
        autoExpandColumn: 'descn'
    });


});