[英]How to use AngularJS $rootScope?
我正在將三個$rootScope
從過程控制器傳遞到Rating控制器,因此基於$rootScope
狀態,我正在啟用和禁用按鈕。 編輯和查看工作正常,但在$rootScope === 'NewPrt'
,一旦用戶回答了所有問題,我想在'NewPrt'
上啟用提交按鈕。
到目前為止,我嘗試下面的代碼。
HTML
<button type="submit" class="btn btn-default" ng-disabled="disabledDraft" ng-click="savePRTDraft()" ng-show="showSaveDraftBtn">Save
as Draft</button>
<button type="submit" class="btn btn-primary"
ng-disabled="disableSubmitButton" ng-click="submitClicked()">Submit</button>
ProcessCtrl.js
$scope.gotoQstnPage = function(isNew) {
var qrtUrl = "/createRtgQstnAir/"+$scope.processDTO.processKey + "/"+isNew;
$rootScope.status = 'NewPrt';
$location.path(qrtUrl);
}
$scope.editProcessRating = function(prcsSessionKey) {
var prtUrl = "/getProcessRating/"+prcsSessionKey;
$rootScope.status = 'edit';
$location.path(prtUrl);
}
$scope.viewProcessRating = function(prcsSessionKey) {
var prtUrl = "/getProcessRating/"+prcsSessionKey;
$rootScope.status = 'view';
$location.path(prtUrl);
}
RatingCtrl.js
if(j > $scope.questionnaire.length){
if($rootScope.status ==='edit') {
$scope.disableSubmitButton = false;
$scope.disabledDraft = false;
$scope.showBusDecDropDown = true;
}
$scope.disabledDraft = function(){
if($rootScope.status === 'view') {
return true;
}
else {
return false;
}
}
if ($rootScope.status === "NewPrt" ) {
$scope.disabledDraft = false;
}
您可以嘗試這樣,而不是使用$rootScope
var app = angular.module('myApp', []); app.controller('Controller', function ($scope) { });
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script> <div ng-app='myApp' ng-controller="Controller"> <form name="myForm"> <input name="myText" type="text" ng-model="mytext" required /> <button ng-disabled="myForm.$invalid">Save</button> </form> </div>
當兩個條件都成立時,啟用提交按鈕:
if ($rootScope ==='edit' || $rootScope ==='NewPrt') {
$scope.disableSubmitButton = false;
}
如果要使用$ rootScope,則需要在要使用config的每個控制器中注入$ rootScope,在任何位置運行
像這樣
var app = angular.module('app');
app.config(function($rootScope){
$rootScope.name = "Hello World"
});
app.controller('home',function($scope,$rootScope){
$scope.name = $rootScope.name;
alert($scope.name)
})
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