Shulou(Shulou.com)06/01 Report--

This article mainly explains "how to achieve multi-level drop-down box in AngularJS". Interested friends may wish to take a look at it. The method introduced in this paper is simple, fast and practical. Next, let the editor take you to learn "how to achieve multi-level drop-down box in AngularJS"!

The specific code is as follows

Select address: please select-Please select var app = angular.module ('MultiDropDownApp', []); / / you can add your own injected service app.controller (' MultiDropDownControl', ['$scope','$http', function ($scope, $http) {var vm = this; vm.provinceSort = [] Vm.citySort = []; / / Select a provincial unit to initialize the secondary linkage of municipal data 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) {/ / request failed to execute code}) } / / initialization page function init () {/ / save $http ({method: 'POST', url:' / AngularjsStudy/GetProvinceSort' Data: {}}) .then (function successCallback (data) {/ / load drop-down box data vm.provinceSort = data.data / / set the default option vm.province = vm.provinceSort [0];}, function errorCallback (response) {/ / request failed to execute code});} / / initialize init ();}])

Controller

Public ActionResult GetProvinceSort () {List districts = new List (); districts.Add (new District () {id=1,fatherID=0,name= "Hunan"}); districts.Add (new District () {id= 2, fatherID=0,name= "Hubei"}); districts.Add (new District () {id= 3, fatherID=0,name= "Sichuan Province"}) Return Json (districts);} public ActionResult GetChildrenSort (int fatherID) {List districts = new List (); switch (fatherID) {case 1: districts.Add (new District () {id = 4, fatherID = 1, name = "Changsha"}) Districts.Add (new District () {id = 5, fatherID = 1, name = "Yueyang"}); districts.Add (new District () {id = 6, fatherID = 1, name = "Zhuzhou City"}); return Json (districts) Case 2: districts.Add (new District () {id = 7, fatherID = 2, name = "Wuhan"}); districts.Add (new District () {id = 8, fatherID = 2, name = "Yichang"}); return Json (districts) Case 3: districts.Add (new District () {id = 9, fatherID = 3, name = "Chengdu"}); districts.Add (new District () {id = 10, fatherID = 3, name = "Suining"}); districts.Add (new District () {id = 11, fatherID = 3, name = "Bazhong"}) Districts.Add (new District () {id = 12, fatherID = 3, name = "Mianyang"}); districts.Add (new District () {id = 13, fatherID = 3, name = "Nanchong"}); return Json (districts) Default: districts.Add (new District () {id = 14, fatherID =-1, name = "I don't know what ∑ Q | thanks thanks | p"}); return Json (districts);}}

Model

Public class District {public int id {get; set;} / root node FatherID=0 / public int fatherID {get; set;} public string name {get; set;}} so far, I believe you have a deeper understanding of "how AngularJS implements multi-level drop-down boxes". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.