我在模块上工作,我检查了一个面板可见性的条件,好像下拉列表的选定索引不等于0或-1,而不是它对我的面板可见,否则它不会。我对如何使用 ng-select
获取下拉列表的选定索引值感到困惑。我在下面显示了我的下拉代码: -
<div data-ng-app="CustomerNew" data-ng-controller="CreateCustomerCtrl as custom" ng-init= getFormData(); >
<table>
<tr>
<td>
<select id="accountselector" style="width: 100%;">
<option value="0">--- Select an option ---</option>
<option data-ng-repeat="acnt in listAccountTypes" value="{{acnt.id}}">{{acnt}}</option>
</select>
</td></tr>
</table>
</div>
这是我的打字稿控制器
/// <reference path="../interface/interface.ts" />
/// <reference path="../../scripts/typings/jquery/jquery.d.ts" />
/// <reference path="../../scripts/typings/angularjs/angular.d.ts" />
module CustomerNew.controllers {
export class CreateCustomerCtrl {
static $inject = ['$scope', '$http', '$templateCache'];
constructor(protected $scope: ICustomerScope,
protected $http: ng.IHttpService,
protected $templateCache: ng.ITemplateCacheService) {
$scope.getFormData = this.getFormData;
}
public getFormData = (getFormData: any) => {
this.$http.get(doAccountTypeUrl).
success((data, status, headers, config) => {
this.$scope.listAccountTypes = data["AccountCodesDisplayTypes"];
}).
error((data, status) => {
debugger;
console.log("In Error:-Request Failed");
alert(status);
});
}
}
var customerapp = angular.module("CustomerNew", []);
customerapp
.controller('CreateCustomerCtrl', CustomerNew.controllers.CreateCustomerCtrl);
var doAccountTypeUrl = '/API/Create/GetLoadData';
}
</Controller>
我必须检查的条件:
if (listAccountTypes.SelectedIndex > -1 && listAccountTypes.SelectedValue != "0")
{
IntlCountryAddres objIntlCountryAddres = objIntlCountryAddressController.GetByCountryId(Convert.ToInt32(listAccountTypes.SelectedValue));
if (objIntlCountryAddres != null && objIntlCountryAddres.id > 0)
{
pnlBillingCountry.Visible = true;
LoadBillingInfo(objIntlCountryAddres);
}
}
else
{
pnlBillingCountry.Visible = false;
}
注意: - 我正在检查页面加载时的这种情况 我收到以下格式的数据: -
答案 0 :(得分:1)
没有内联选项:
<select id="accountselector" style="width: 100%;">
<option value="0">--- Select an option ---</option>
而是使用ng-options
和ng-model
:
<select id="accountselector" style="width: 100%;" ng-options="check docs" ng-model="check docs"></select>
答案 1 :(得分:1)
我更新了其中一个plunkers with the above code (原件来自here)。首先,这将是我们返回的数据文件 - API/Create/GetLoadData.json
:
{
"AccountCodesDisplayTypes" :
{
"1": "Code Only",
"2": "Code and Description",
"3": "Description Only",
"N": "no"
}
}
这是一个有点调整的控制器(使用上面的json并通过getter消耗现有的模块)
module CustomerNew.controllers {
export class CreateCustomerCtrl {
static $inject = ['$scope', '$http', '$templateCache'];
constructor(protected $scope: ICustomerScope,
protected $http: ng.IHttpService,
protected $templateCache: ng.ITemplateCacheService) {
$scope.getFormData = this.getFormData;
}
public getFormData = (getFormData: any) => {
this.$http
.get(doAccountTypeUrl)
.success((data, status, headers, config) => {
this.$scope.listAccountTypes = data["AccountCodesDisplayTypes"];
}).
error((data, status) => {
debugger;
console.log("In Error:-Request Failed");
alert(status);
});
}
}
//var customerapp = angular.module("CustomerNew", []);
var customerapp = angular.module("CustomerNew");
customerapp
.controller('CreateCustomerCtrl', CustomerNew.controllers.CreateCustomerCtrl);
var doAccountTypeUrl = 'API/Create/GetLoadData.json';
}
使用模块getter的原因是 - CustomerNew
模块在别处定义...作为主模块的一部分。
最后,这是一个有点调整的HTML代码段:
<div data-ng-app="CustomerNew" data-ng-controller="CreateCustomerCtrl as custom" ng-init=getFormData();>
<table>
<tr>
<td>
<select id="accountselector" style="width: 100%;">
<option value="0">--- Select an option ---</option>
<option data-ng-repeat="(key, value) in listAccountTypes" value="{{key}}">{{key}} - {{value}}</option>
</select>
</td>
</tr>
</table>
</div>
大多数情况下我们使用key,value来消耗我们的json(我尝试使用与上面的错误消息相同的内容)
检查here
答案 2 :(得分:1)
因此,工作ng-repeat
并选择/选项为described here。
首先,我们将使用 Model = {}
对象扩展$ scope:
constructor(protected $scope: ICustomerScope,
protected $http: ng.IHttpService,
protected $templateCache: ng.ITemplateCacheService) {
$scope.getFormData = this.getFormData;
$scope.Model = { selectedValue : "0" };
}
我们可以像这样更改html代码段,在名为 "key"
的模型中获取选中 selectedValue
(这里是{{3 }}):
<div data-ng-app="CustomerNew" data-ng-controller="CreateCustomerCtrl as custom"
ng-init="getFormData();">
<table>
<tr>
<td>
<select id="accountselector" style="width: 100%;" ng-model="Model.selectedValue">
<option value="0" >--- Select an option ---</option>
<option data-ng-repeat="(key, value) in listAccountTypes"
value="{{key}}">{{key}} - {{value}}</option>
</select>
</td>
</tr>
</table>
Selected value: {{Model.selectedValue}}
</div>
最重要的变化是引入 ng-model
...<select id="accountselector" style="width: 100%;" ng-model="selectedValue">
如果我们想知道所选值的INDEX,我们可以使用内置计数器 $index
的角度,检查它here,这将是调整部分:
<select id="accountselector" style="width: 100%;" ng-model="Model.selectedValue">
<option value="0" >--- Select an option ---</option>
<option data-ng-repeat="(key, value) in listAccountTypes"
value="{{$index + 1}}">{{key}} - {{value}}</option>
</select>