我试图通过将布尔值传递到属性并将其赋回 ng-show 来控制指令的可见性。
我有以下标记:
<div>
{{ showFromDate }}
<input type="datetime" ng-click="showFromDate =!showFromDate" ng-model="fromDate"/>
<simple-date-picker class="date-picker" visibility="showFromDate" ng-show="popupVisible" data-ng-model="fromDate">
<p>This is a custom date picker</p>
</simple-date-picker>
</div>
我的 Angularjs 代码是:
var app = angular.module('myapp',[]);
app.directive('simpleDatePicker', ['$document', '$parse', function ($document, $parse) {
return {
restrict: 'EA',
link: function (scope, elem, attrs) {
},
scope: {
visibility: "="
},
controller: ["$scope", function ($scope) {
$scope.popupVisible = $scope.visibility;
$scope.showPopup = function($event) {
$event.stopPropagation()
$scope.popupVisible = true;
};
}]
};
}]);
我遇到的问题是,在指令中我无法检索"可见性"的值,因此我可以将其分配给 $scope.popupVisible,而后者又被传递给 ng-show。
当我将ng-show更改为ng-show="showFromDate"时,我能够使用输入的单击处理程序显示和隐藏指令。例:
<div>
{{ showFromDate }}
<input type="datetime" ng-click="showFromDate =!showFromDate" ng-model="fromDate"/>
<simple-date-picker class="date-picker" visibility="showFromDate" ng-show="showFromDate" data-ng-model="fromDate">
<p>This is a custom date picker</p>
</simple-date-picker>
</div>
我的问题是,如何将 showFromDate 传递给 popupVisible?
请注意,我想这样做,因为我将在屏幕上显示该指令的多个实例,并且每个实例都需要单独控制。
你只需要在指令属性上传递visibility="popupVisible"
,而不是传递showFromDate
<simple-date-picker class="date-picker" visibility="popupVisible" ng-show="popupVisible" data-ng-model="fromDate">
<p>This is a custom date picker</p>
</simple-date-picker>
那么就不需要在指令控制器中$scope.popupVisible = $scope.visibility;
这条线
或
否则,您只需将$scope.popupVisible = $scope.visibility;
行更改为$scope.$parent.popupVisible = $scope.visibility;
,这会更改父控制器的值,但似乎不是处理作用域的好方法。
更好的方法是在指令隔离作用域内再传递一个值。 并像目前一样使用它visibility: "="