KonckOutjs-简单实现无刷新省市联动

1 <div id="divArea">
2   <select data-bind="options: CityArray,optionsText: ‘AreaName‘,optionsValue: ‘AreaID‘,value: selectedCityAreaID,optionsCaption: ‘请选择‘,event:{ change: changeCity}"></select>
3   <select data-bind="options: nowChild,optionsText: ‘AreaName‘,optionsValue: ‘AreaID‘,optionsCaption: ‘请选择‘"></select>
4 </div>

 1             //定义区县列表
 2             var coutryArray = [
 3             {
 4                 FatherAreaID: "330100",
 5                 Childs: [
 6                     { AreaName: ‘市辖区‘, AreaID: ‘330101‘ },
 7                     { AreaName: ‘上城区‘, AreaID: ‘330102‘ },
 8                     { AreaName: ‘下城区‘, AreaID: ‘330103‘ },
 9                     { AreaName: ‘江干区‘, AreaID: ‘330104‘ },
10                     { AreaName: ‘拱墅区‘, AreaID: ‘330105‘ },
11                     { AreaName: ‘西湖区‘, AreaID: ‘330106‘ },
12                     { AreaName: ‘滨江区‘, AreaID: ‘330108‘ },
13                     { AreaName: ‘萧山区‘, AreaID: ‘330109‘ },
14                     { AreaName: ‘余杭区‘, AreaID: ‘330110‘ },
15                     { AreaName: ‘桐庐县‘, AreaID: ‘330122‘ },
16                     { AreaName: ‘淳安县‘, AreaID: ‘330127‘ },
17                     { AreaName: ‘建德市‘, AreaID: ‘330182‘ },
18                     { AreaName: ‘富阳市‘, AreaID: ‘330183‘ },
19                     { AreaName: ‘临安市‘, AreaID: ‘330185‘ }
20                 ]
21             },
22             {
23                 FatherAreaID: "330200",
24                 Childs: [
25                     { AreaName: ‘市辖区‘, AreaID: ‘330201‘ },
26                     { AreaName: ‘海曙区‘, AreaID: ‘330203‘ },
27                     { AreaName: ‘江东区‘, AreaID: ‘330204‘ },
28                     { AreaName: ‘江北区‘, AreaID: ‘330205‘ },
29                     { AreaName: ‘北仑区‘, AreaID: ‘330206‘ },
30                     { AreaName: ‘镇海区‘, AreaID: ‘330211‘ },
31                     { AreaName: ‘鄞州区‘, AreaID: ‘330212‘ },
32                     { AreaName: ‘象山县‘, AreaID: ‘330225‘ },
33                     { AreaName: ‘宁海县‘, AreaID: ‘330226‘ },
34                     { AreaName: ‘余姚市‘, AreaID: ‘330281‘ },
35                     { AreaName: ‘慈溪市‘, AreaID: ‘330282‘ },
36                     { AreaName: ‘奉化市‘, AreaID: ‘330283‘ }
37                 ]//其他的市省略
38             }];
39             var modelArea = {
40                 CityArray: [
41                     { AreaName: ‘杭州市‘, AreaID: ‘330100‘ },
42                     { AreaName: ‘宁波市‘, AreaID: ‘330200‘ },
43                     { AreaName: ‘温州市‘, AreaID: ‘330300‘ },
44                     { AreaName: ‘嘉兴市‘, AreaID: ‘330400‘ },
45                     { AreaName: ‘湖州市‘, AreaID: ‘330500‘ },
46                     { AreaName: ‘绍兴市‘, AreaID: ‘330600‘ },
47                     { AreaName: ‘金华市‘, AreaID: ‘330700‘ },
48                     { AreaName: ‘衢州市‘, AreaID: ‘330800‘ },
49                     { AreaName: ‘舟山市‘, AreaID: ‘330900‘ },
50                     { AreaName: ‘台州市‘, AreaID: ‘331000‘ },
51                     { AreaName: ‘丽水市‘, AreaID: ‘331100‘ }
52                 ],
53                 selectedCityAreaID: ko.observable(),
54                 nowChild: ko.observableArray(),
55                 changeCity: function () {
56                     for (var i = 0, length = coutryArray.length; i < length; i++) {
57                         if (coutryArray[i].FatherAreaID == this.selectedCityAreaID()) {
58                             this.nowChild(coutryArray[i].Childs);
59                         }
60                     }
61                 }
62         };
63         ko.applyBindings(modelArea, $("#divArea")[0]);