Unable to communicate with the server-side controller using Angular

Encountering issues when attempting to call a server-side controller using AngularJS, these two error messages are being displayed.

The parameters dictionary contains a null entry for parameter 'problemId' of non-nullable type 'System.Guid' for method 'Boolean ReadOnly(System.Guid)'

[11:55:27 GMT+0000 (GMT Standard Time)] Browser Link: Failed to send message to browser link server:
Error: SignalR: Connection must be started before data can be sent. Call .start() before .send()

Server Side Controller Despite placing a break point in this controller, it never seems to get triggered.

public bool ReadOnly(Guid problemId)
        {
            var problem = new Problem(problemId);
            return problem.ProblemCompleted();
        }

Angular Controller After going through the Angular code, a valid GUID is maintained throughout.

$scope.problemCompleted = stepService.readOnly($scope.problemId);

Angular Service

//readOnly
this.readOnly = function (problemId) {
    $http.post(ROOT + '/step/ReadOnly/' + problemId)
   .then(function (result) {
       this.problemCompleted = result.data;
       return this.problemCompleted
   });
}

Attempting to retrieve the boolean value back to the scope but unable to reach the controller.

javascriptc#angularjs

Answer №1

function checkIfReadOnly(Id problemCode)
        {
            var code = new Problem(problemId);
            return code.checkProblemStatus();
        }

Silly oversight, I mistakenly updated the parameter name from problemId to id. It's fixed now, my apologies.

function checkIfReadOnly(Id id)
        {
            var code = new Problem(id);
            return code.checkProblemStatus();
        }

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