级联下拉angularjs NG选项对象错误 [英] cascading dropdown angularjs ng-option object error
问题描述
我用这个例子<一个href=\"http://devzone.co.in/simple-example-of-dependable-dropdowns-cascading-dropdowns-using-angularjs/\" rel=\"nofollow\">http://devzone.co.in/simple-example-of-dependable-dropdowns-cascading-dropdowns-using-angularjs/在这里它工作正常,但我的索引号获取对象,而不是获得价值
我的控制器
使用严格;
/ **
* @ngdoc对象
* @name test.Controllers.TestController
* @description的TestController
* @requires NG。$范围
* /角
.module(测试)
.controller('的TestController',[
'$范围',
功能($范围){
$ scope.countries = {
印度:{
'马哈拉施特拉邦':'浦','孟买','那格浦尔','阿科拉'],
中央邦:多尔,博帕尔','贾巴尔普尔'],
拉贾斯坦邦:斋浦尔,阿杰梅尔','焦特布尔']
},
'美国': {
'阿拉巴马':'蒙哥马利','伯明翰'],
加利福尼亚:国王','弗里蒙特'],
伊利诺伊州:春田','芝加哥']
},
澳大利亚:{
新南威尔士州':'悉尼'],
'维多利亚':'墨尔本']
}
};
$ scope.GetSelectedCountry =功能(){
。$ scope.strCountry =的document.getElementById(国家)的价值;
VAR DATAS = $ scope.strCountry;
的console.log(JSON.stringify(DATAS));
};
$ scope.GetSelectedState =功能(){
。$ scope.strState =的document.getElementById(国家)的价值;
}; }
]);
我的看法页
国家:
选择
&NBSP;
声明:选择
&NBSP;
市:
选择
{{市}}
&NBSP;
选择国家:
{{strCountry}}
&NBSP;
选中状态:
{{strState}}
&NBSP;
选择城市:
{{市}}
如果你只是想获得所选国家和国家,可以在对象中迭代,并检查其关键NG-模式的价值相匹配。为了得到这个城市,你只需要返回NG-模式的价值。
angular.module(测试,[])\r
.controller('的TestController',['$范围',\r
功能($范围){\r
$ scope.countries = {\r
印度:{\r
'马哈拉施特拉邦':'浦','孟买','那格浦尔','阿科拉'],\r
中央邦:多尔,博帕尔','贾巴尔普尔'],\r
拉贾斯坦邦:斋浦尔,阿杰梅尔','焦特布尔']\r
},\r
'美国': {\r
'阿拉巴马':'蒙哥马利','伯明翰'],\r
加利福尼亚:国王','弗里蒙特'],\r
伊利诺伊州:春田','芝加哥']\r
},\r
澳大利亚:{\r
新南威尔士州':'悉尼'],\r
'维多利亚':'墨尔本']\r
}\r
};\r
\r
$ scope.getCountry =功能(VAL){\r
为(在$ scope.countries VAR键){\r
如果($ scope.countries.hasOwnProperty(键)){\r
如果($ scope.countries [关键] === VAL){\r
警报('您已选择:'+键);\r
}\r
}\r
}\r
};\r
\r
$ scope.getCity =功能(市,州){\r
对于(国有重点VAR){\r
如果(state.hasOwnProperty(键)){\r
如果(州[关键] ===市){\r
警报('您已选择:'+键);\r
}\r
}\r
}\r
};\r
\r
$ scope.alertCity =功能(市){\r
警报(您选择'+城市);\r
};\r
}]);
\r
&LT;脚本SRC =HTTPS://$c$c.angularjs。组织/ 1.3.15 / angular.min.js&GT;&LT; / SCRIPT&GT;\r
\r
&LT; DIV NG-应用=测试&GT;\r
&LT; DIV NG控制器=的TestController&GT;\r
&LT; DIV&GT;\r
国家:\r
&LT;选择一个id =国NG-模式=规定NG选项=国(国家,州)在国家NG变化=getCountry(州)&GT;\r
&LT;期权价值=''&GT;选择&LT; /选项&GT;\r
&LT; /选择&GT;\r
&LT; / DIV&GT;\r
&LT; DIV&GT;\r
状态:\r
&LT;选择一个id =状态NG-禁用= NG模型=城市NG选项=状态(州,市)在国家NG-变化=getCity(市,州)国家! &GT;\r
&LT;期权价值=''&GT;选择&LT; /选项&GT;\r
&LT; /选择&GT;\r
&LT; / DIV&GT;\r
&LT; DIV&GT;\r
市:\r
&LT;选择一个id =城市NG-禁用=城市||规定!NG模型=城市NG-变化=alertCity(市)&GT;\r
&LT;期权价值=''&GT;选择&LT; /选项&GT;\r
&LT;选项NG重复=城在城市VALUE ={{城市}}&GT; {{城市}}&LT; /选项&GT;\r
&LT; /选择&GT;\r
&LT; / DIV&GT;\r
&LT; / DIV&GT;\r
&LT; / DIV&GT;
\r
i have used this example http://devzone.co.in/simple-example-of-dependable-dropdowns-cascading-dropdowns-using-angularjs/ here its working fine but my getting object with index number rather than getting value
my controller 'use strict';
/**
* @ngdoc object
* @name test.Controllers.TestController
* @description TestController
* @requires ng.$scope
*/
angular
.module('test')
.controller('TestController', [
'$scope',
function($scope) {
$scope.countries = {
'India': {
'Maharashtra': ['Pune', 'Mumbai', 'Nagpur', 'Akola'],
'Madhya Pradesh': ['Indore', 'Bhopal', 'Jabalpur'],
'Rajasthan': ['Jaipur', 'Ajmer', 'Jodhpur']
},
'USA': {
'Alabama': ['Montgomery', 'Birmingham'],
'California': ['Sacramento', 'Fremont'],
'Illinois': ['Springfield', 'Chicago']
},
'Australia': {
'New South Wales': ['Sydney'],
'Victoria': ['Melbourne']
}
};
$scope.GetSelectedCountry = function () {
$scope.strCountry = document.getElementById("country").value;
var datas =$scope.strCountry;
console.log(JSON.stringify(datas));
};
$scope.GetSelectedState = function () {
$scope.strState = document.getElementById("state").value;
};
}
]);
my view page
Country: Select States:Select City: Select {{city}} Selected Country: {{strCountry}} Selected State: {{strState}} Selected City: {{city}}If you just want to get the selected country and state, can iterate over the object and check which key matches the value of ng-model. To get the city, you only have to return the value of ng-model.
angular.module('test', [])
.controller('TestController', ['$scope',
function($scope) {
$scope.countries = {
'India': {
'Maharashtra': ['Pune', 'Mumbai', 'Nagpur', 'Akola'],
'Madhya Pradesh': ['Indore', 'Bhopal', 'Jabalpur'],
'Rajasthan': ['Jaipur', 'Ajmer', 'Jodhpur']
},
'USA': {
'Alabama': ['Montgomery', 'Birmingham'],
'California': ['Sacramento', 'Fremont'],
'Illinois': ['Springfield', 'Chicago']
},
'Australia': {
'New South Wales': ['Sydney'],
'Victoria': ['Melbourne']
}
};
$scope.getCountry = function(val) {
for (var key in $scope.countries) {
if ($scope.countries.hasOwnProperty(key)) {
if ($scope.countries[key] === val) {
alert('You selected: ' + key);
}
}
}
};
$scope.getCity = function(city, state) {
for (var key in state) {
if (state.hasOwnProperty(key)) {
if (state[key] === city) {
alert('You selected: ' + key);
}
}
}
};
$scope.alertCity = function(city) {
alert('You selected ' + city);
};
}]);
<script src="https://code.angularjs.org/1.3.15/angular.min.js"></script>
<div ng-app="test">
<div ng-controller="TestController">
<div>
Country:
<select id="country" ng-model="states" ng-options="country for (country, states) in countries" ng-change="getCountry(states)">
<option value=''>Select</option>
</select>
</div>
<div>
States:
<select id="state" ng-disabled="!states" ng-model="cities" ng-options="state for (state,city) in states" ng-change="getCity(cities, states)">
<option value=''>Select</option>
</select>
</div>
<div>
City:
<select id="city" ng-disabled="!cities || !states" ng-model="city" ng-change="alertCity(city)">
<option value=''>Select</option>
<option ng-repeat="city in cities" value="{{city}}">{{city}}</option>
</select>
</div>
</div>
</div>
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