Menu
I'm new to AngularJS, so this might be a trivial question.
The problem I'm facing is that the AngularJS bindings {{Object.Field}} reverting to un formatted state whenever there is an update-panel partial update. I understand that the update-panel is replacing the DOM with the non formatted text({{Object.Field}}), but I'm not able to make angular re-evaluate the piece of HTML that was injected by the update panel.
What I've tried so far:
I can get a handle to the DOM inside the controller and change it directly, but I understand that this is not a recommended approach and hence I'm here asking this question.
How do I make angular re-evaluate the piece of HTML, replaced/injected by an asp.net update panel's partial update?
715
You need to compile the template again within the End_Request of PageRequestManager. I used a div with an id so I could reference the element of interest within the End_Request function.
The javascript code:
var mod = angular.module("myApp", []);
mod.controller("MainController", function ($scope, $compile) {
$scope.data = {};
$scope.data.world = "world";
Sys.WebForms.PageRequestManager.getInstance().add_endRequest(function (sender, args) {
var elem = angular.element(document.getElementById("angularTemplate"));
elem.replaceWith($compile(elem)($scope));
$scope.$apply();
});
});
The aspx code:
<body ng-app="myApp" ng-controller="MainController">
<form id="form1" runat="server">
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<div id="angularTemplate">
Hello, {{data.world}}
</div>
<asp:Button ID="btnUpdate" runat="server" Text="Update Me" />
</ContentTemplate>
</asp:UpdatePanel>
</div>
</form>
</body>
Clicking the "Update Me" button will keep "Hello, world" in the template. The key is to also call $scope.$apply() in the End_Request as this is technically run outside of angular.
169
If you have a dynamic content and Angular bindings, this solution might not be enough for you.
I've tried to implement this solution and it almost worked. I saw the HTML content of the directive that inside the .NET application, but all Angular bindings, like ng-repeat and ng-click, didn't work.
I've found the solution here:
http://blog.travisgosselin.com/integrating-angularjs-in-a-tight-spot/
You need to manually initialize your module in the add_endRequest event:
Sys.WebForms.PageRequestManager.getInstance().add_endRequest(function (sender, args) {
angular.bootstrap($('#myDiv'), ['myNgApp']);
});
This solution was enough, and I removed the solution with the $compile.
You can read about angular.bootstrap in the documentation: https://docs.angularjs.org/guide/bootstrap
31
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
