這篇文章將為大家詳細(xì)講解有關(guān)Angularjs自定義指令如何實(shí)現(xiàn)三級(jí)聯(lián)動(dòng)選擇地理位置,小編覺(jué)得挺實(shí)用的,因此分享給大家做個(gè)參考,希望大家閱讀完這篇文章后可以有所收獲。
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Angularjs自定義指令實(shí)現(xiàn)三級(jí)聯(lián)動(dòng)效果
代碼
<html lang="zh-CN" ng-app="myApp"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <script src="jquery.min.js"></script> <script src="angular.js"></script> <script src="bootstrap.min.js"></script> <link rel="stylesheet" href="bootstrap.min.css" rel="external nofollow" > <style type="text/css"> select { width : 116px; } .selectLocation select { display: block; float: left; margin-bottom: 2px; } </style> <script type="text/javascript"> var myApp = angular.module('myApp', []); myApp.controller('Ctrl', ['$scope', 'utilsService', function($scope, utilsService){ $scope.location = ''; $scope.$watch('location', function(newValue) { console.log(newValue) console.log(utilsService.isEmptyObj(newValue)) }) // if (isEmptyObj($scope.location)) { // //error // } }]); myApp.factory("utilsService", function() { return { isEmptyObj : function(obj) { var flag = true; for(var i in obj) { if (obj[i] != '') { flag = false; break; } } return flag; } } }) myApp.directive("custLocation", ['$http', function($http) { return { restrict: 'A', scope: { ngModel : '=' }, templateUrl: 'tmpl.html', link: function(scope, elem, attrs) { scope.country = ''; scope.province = ''; scope.city = ''; scope.detailAddress = ''; $http.get("location.json").success(function(data) { scope.countryList = data.country; }); scope.$watch('detailAddress', function(newValue) { // console.log(scope.country.name + scope.province.name + scope.city + newValue) scope.ngModel = { "country" : scope.country == null || scope.country == '' ? '' : scope.country.name, "province" : scope.province == null || scope.province == '' ? '' : scope.province.name, "city" : scope.city || '', "detailAddress" : newValue }; }); scope.changeCountry = function() { if (scope.country == null) { scope.country = ''; scope.province = ''; scope.city = ''; scope.detailAddress = ''; scope.ngModel = ''; } else { scope.ngModel = { "country" : scope.country.name, "province" : scope.province == null || scope.province == '' ? '' : scope.province.name, "city" : scope.city || '', "detailAddress" : scope.detailAddress }; } } scope.changeProvince = function () { scope.ngModel = { "country" : scope.country.name, "province" : scope.province == null || scope.province == '' ? '' : scope.province.name, "city" : scope.city || '', "detailAddress" : scope.detailAddress }; } scope.changeCity = function() { scope.ngModel = { "country" : scope.country.name, "province" : scope.province == null || scope.province == '' ? '' : scope.province.name, "city" : scope.city || '', "detailAddress" : scope.detailAddress }; } } }; }]); </script> </head> <body ng-controller="Ctrl"> <div cust-location ng-model="location"></div> </body> </html>
tmpl.html
<div class="selectLocation"> <div> <select class="btn btn-info btn-sm" ng-change="changeCountry()" ng-model="country" ng-options="C.name for C in countryList"> <option value="">國(guó)家</option> </select> </div> <div> <select class="btn btn-info btn-sm" ng-change="changeProvince()" ng-model="province" ng-options="p.name for p in country.province"> <option value="">省份/直轄市</option> </select> </div> <div> <select class="btn btn-info btn-sm" ng-change="changeCity()" ng-model="city" ng-options="c for c in province.city"> <option value="">市</option> </select> </div> <div > <input type="text" class="form-control" ng-model="detailAddress" placeholder="詳細(xì)地址" ng-disabled="country=='' || country==null" /> </div> </div>
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