AngularJS 之ng-options指令

1.基本下拉效果(lable for value in array)

　　其中select标签中的ng-model属性必须有，其值为选中的对象或属性值。

? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 <div ng-controller= "ngselect" >    <p>usage:label for value in array</p>    <p>选项，{{selected}}</p>    <select ng-model= "selected" ng-options= "o.id for o in optData" >      <option value= "" >-- 请选择 --</option>    </select> </div> m1.controller( "ngselect" ,[ '$scope' , function ($sc){    $sc.selected = '' ;    $sc.optData = [{      id: 10001,      MainCategory: '男' ,      ProductName: '水洗T恤' ,      ProductColor: '白'    },{      id: 10002,      MainCategory: '女' ,      ProductName: '圓領短袖' ,      ProductColor: '黃'    },{      id: 10003,      MainCategory: '女' ,      ProductName: '圓領短袖' ,      ProductColor: '黃'    }]; }]);

2.自定义下拉显示名称(label for value in array)

    label可以根据需要拼接出不同的字符串

? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 <div ng-controller= "ngselect2" >    <p>usage:label for value in array(label可以根据需求拼接出不同的字符串)</p>    <p>选项，{{selected}}</p>    <select ng-model= "selected" ng-options= "(o.ProductColor+'-'+o.ProductName) for o in optData" >      <option value= "" >-- 请选择 --</option>    </select> </div> m1.controller( "ngselect2" ,[ '$scope' , function ($sc){    $sc.selected = '' ;    $sc.optData = [{      id: 10001,      MainCategory: '男' ,      ProductName: '水洗T恤' ,      ProductColor: '白'    },{      id: 10002,      MainCategory: '女' ,      ProductName: '圓領短袖' ,      ProductColor: '黃'    },{      id: 10003,      MainCategory: '女' ,      ProductName: '圓領短袖' ,      ProductColor: '黃'    }]; }]);

3.ng-options 选项分组

    group by分组项

? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 <div ng-controller= "ngselect3" >    <p>usage:label group by groupName for value in array</p>    <p>选项，{{selected}}</p>    <select ng-model= "selected" ng-options= "(o.ProductColor+'-'+o.ProductName) group by o.MainCategory for o in optData" >      <option value= "" >-- 请选择 --</option>    </select> </div> m1.controller( "ngselect3" ,[ '$scope' , function ($sc){    $sc.selected = '' ;    $sc.optData = [{      id: 10001,      MainCategory: '男' ,      ProductName: '水洗T恤' ,      ProductColor: '白'    },{      id: 10002,      MainCategory: '女' ,      ProductName: '圓領长袖' ,      ProductColor: '黃'    },{      id: 10003,      MainCategory: '女' ,      ProductName: '圓領短袖' ,      ProductColor: '黃'    }]; }]);

4.ng-options 自定义ngModel的绑定

    下面selected的值为optData的id 效果 http://sandbox.runjs.cn/show/nhi8ubrb

? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 <div ng-controller= "ngselect4" >    <p>usage:select as label for value in array</p>    <p>选项，{{selected}}</p>    <select ng-model= "selected" ng-options= "o.id as o.ProductName for o in optData" >      <option value= "" >-- 请选择 --</option>    </select> </div> m1.controller( "ngselect4" ,[ '$scope' , function ($sc){    $sc.selected = '' ;    $sc.optData = [{      id: 10001,      MainCategory: '男' ,      ProductName: '水洗T恤' ,      ProductColor: '白'    },{      id: 10002,      MainCategory: '女' ,      ProductName: '圓領长袖' ,      ProductColor: '黃'    },{      id: 10003,      MainCategory: '女' ,      ProductName: '圓領短袖' ,      ProductColor: '黃'    }]; }]);

效果：http://runjs.cn/detail/nhi8ubrb

转自：http://www.jb51.net/article/67909.htm