ng-option

效果 http://sandbox.runjs.cn/show/nhi8ubrb
.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。
<div ng-controller="ngselect">
  <p>usage:labelforvalue inarray</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 = '';
  $sc.optData = [{
    id: 10001,
    MainCategory:'男',
    ProductName:'水洗T恤',
    ProductColor:'白'
  },{
    id: 10002,
    MainCategory:'女',
    ProductName:'圓領短袖',
    ProductColor:'黃'
  },{
    id: 10003,
    MainCategory:'女',
    ProductName:'圓領短袖',
    ProductColor:'黃'
  }];
}]);
2.自定义下拉显示名称(label for value in array)
    label可以根据需要拼接出不同的字符串
<div ng-controller="ngselect2">
  <p>usage:labelforvalue inarray(label可以根据需求拼接出不同的字符串)</p>
  <p>选项，{{selected}}</p>
  <select ng-model="selected"ng-options="(o.ProductColor+'-'+o.ProductName) for o in optData">
    <option value="">-- 请选择 --</option>
  </select>
</div>
m1.controller("ngselect2",['$scope',function($sc){
  $sc.selected = '';
  $sc.optData = [{
    id: 10001,
    MainCategory:'男',
    ProductName:'水洗T恤',
    ProductColor:'白'
  },{
    id: 10002,
    MainCategory:'女',
    ProductName:'圓領短袖',
    ProductColor:'黃'
  },{
    id: 10003,
    MainCategory:'女',
    ProductName:'圓領短袖',
    ProductColor:'黃'
  }];
}]);
3.ng-options 选项分组 group by分组项
<div ng-controller="ngselect3">
  <p>usage:label group by groupName forvalue inarray</p>
  <p>选项，{{selected}}</p>
  <select ng-model="selected"ng-options="(o.ProductColor+'-'+o.ProductName) group by o.MainCategory for o in optData">
    <option value="">-- 请选择 --</option>
  </select>
</div>
m1.controller("ngselect3",['$scope',function($sc){
  $sc.selected = '';
  $sc.optData = [{
    id: 10001,
    MainCategory:'男',
    ProductName:'水洗T恤',
    ProductColor:'白'
  },{
    id: 10002,
    MainCategory:'女',
    ProductName:'圓領长袖',
    ProductColor:'黃'
  },{
    id: 10003,
    MainCategory:'女',
    ProductName:'圓領短袖',
    ProductColor:'黃'
  }];
}]);
4.ng-options 自定义ngModel的绑定
<div ng-controller="ngselect4">
  <p>usage:select as label forvalue inarray</p>
  <p>选项，{{selected}}</p>
  <select ng-model="selected"ng-options="o.id as o.ProductName for o in optData">
    <option value="">-- 请选择 --</option>
  </select>
</div>
m1.controller("ngselect4",['$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'
  }];
}]);