Using $scope in ng-include does not always result in the partial view being rendered

Within the internal view, I am dynamically rendering HTML using ng-include and ng-if directives.

 <div ng-controller="myController">
        <div ng-if="myProperty == 1">
            <div ng-include="'view1.html'"></div>
        </div>
        <div ng-if="myProperty == 2">
            <div ng-include="'view2.html'"></div>
        </div>
 </div>

Within the controller, I have a $scope.myProperty which receives a value from another JavaScript object through $scope injection. The controller also contains a callback function that updates $scope.myProperty every few seconds.

app.controller('myController', function ($scope) {
   ...
        $scope.myProperty = 0; //initial value
        function callback() {
            $scope.$apply(); // force view update
            console.log($scope.myProperty); // log the updated value of myProperty
        }
    var otherJsObject = new myObject($scope, callback);
    otherJsObject.work();
   ...
}

The callback function successfully updates the myProperty value, but it does not reflect the changes in the view every time.

Update: $scope.bindUIProp = { a: $scope.myProperty};

    function callback() {
        $scope.$apply(); 
        $scope.bindUIProp.a = $scope.myProperty;         
        console.log('Callback  ' + $scope.myProperty);
        console.log('drawstage  ' + $scope.bindUIProp.a);
    }

    var otherJsObject = new myObject($scope, callback);
    otherJsObject.work();

Within the view, I have utilized the object property

<div ng-controller="myController">
            <div ng-if="bindUIProp.a == 1">
                <div ng-include="'view1.html'"></div>
            </div>
            <div ng-if="bindUIProp.a == 2">
                <div ng-include="'view2.html'"></div>
            </div>
     </div>

This approach works consistently when the page is refreshed. However, the partial view does not update from view1 to view2 when the scope.bindUIProp.a is changed to 2.

Answer №1

Make a change in the way properties are written within the code. Move them to a lower level.

Instead of directly accessing myProperty in $scope,

access it in $scope.mp.myProperty

Answer №2

Using both ng-if and ng-include can lead to the creation of child scopes.

If you are experiencing issues, it may be due to using a primitive in your main scope. Primitives do not support inheritance, causing the binding to break in nested child scopes.

To resolve this, consider changing the primitive to an object:

$scope.myProperty = { someProp: 0};

Personally, I tend to avoid using ng-include because of the child scope it introduces. Instead, I opt for my own directive when I simply need to include a template.

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