本文实例为大家分享了AngularJS实现多级下拉框的具体代码，供大家参考，具体内容如下
<div ng-app="MultiDropDownApp" ng-controller="MultiDropDownControl as vm">
<label>选择地址:</label>
<!--ng-options加载所有选择项，ng-model记录当前选择项-->
<select ng-model="vm.province" ng-options="x.name for x in vm.provinceSort"
ng-change="vm.selectProvince()" id="" value="" class="form-control width-25">
<option value="">请选择</option>
</select>
<label>—</label>
<select ng-model="vm.city" ng-options="x.name for x in vm.citySort"
id="" value="" class="form-control width-25">
<option value="">请选择</option>
</select>
</div>
<script src="~/Scripts/angular.min.js"></script>
<script>
var app = angular.module('MultiDropDownApp', []);
//可以添加上自己注入的服务
app.controller('MultiDropDownControl', ['$scope', '$http',
function ($scope, $http) {
var vm = this;
vm.provinceSort = [];
vm.citySort = [];
//选择省级单位，初始化市级数据 二级联动
vm.selectProvince = function () {
var fatherID = vm.province.id;
vm.citySort = [];
$http({
method: 'POST',
url: '/AngularjsStudy/GetChildrenSort',
data: { fatherID: fatherID }
}).then(function successCallback(data) {
vm.citySort = data.data;
}, function errorCallback(response) {
// 请求失败执行代码
});
}
//初始化页面
function init() {
//省
$http({
method: 'POST',
url: '/AngularjsStudy/GetProvinceSort',
data: {}
}).then(function successCallback(data) {
//加载下拉框数据
vm.provinceSort = data.data;
//设置默认选项
vm.province = vm.provinceSort[0];
}, function errorCallback(response) {
// 请求失败执行代码
});
}
//初始化
init();
}])
</script>
Controller
public ActionResult GetProvinceSort()
{
List<District> districts = new List<District>();
districts.Add(new District() {id=1,fatherID=0,name="湖南省" });
districts.Add(new District() { id =2, fatherID = 0, name = "湖北省" });
districts.Add(new District() { id =3, fatherID = 0, name = "四川省" });
return Json(districts);
}
public ActionResult GetChildrenSort(int fatherID)
{
List<District> districts = new List<District>();
switch (fatherID)
{
case 1:
districts.Add(new District() { id = 4, fatherID = 1, name = "长沙市" });
districts.Add(new District() { id = 5, fatherID = 1, name = "岳阳市" });
districts.Add(new District() { id = 6, fatherID = 1, name = "株洲市" });
return Json(districts);
case 2:
districts.Add(new District() { id = 7, fatherID = 2, name = "武汉市" });
districts.Add(new District() { id = 8, fatherID = 2, name = "宜昌市" });
return Json(districts);
case 3:
districts.Add(new District() { id = 9, fatherID = 3, name = "成都市" });
districts.Add(new District() { id = 10, fatherID = 3, name = "遂宁市" });
districts.Add(new District() { id = 11, fatherID = 3, name = "巴中市" });
districts.Add(new District() { id = 12, fatherID = 3, name = "绵阳市" });
districts.Add(new District() { id = 13, fatherID = 3, name = "南充市" });
return Json(districts);
default:
districts.Add(new District() { id = 14, fatherID = -1, name = "不知道你选了什么∑q|ﾟДﾟ|p" });
return Json(districts);
}
}
Model
public class District
{
public int id { get; set; }
/// <summary>
/// 根节点FatherID=0
/// </summary>
public int fatherID { get; set; }
public string name { get; set; }
}
