I am attempting to upload a file to my server by saving a path to the database and the file to a folder. I have tried using ng-file-upload, and here is my code:

<form ng-show="divPatient" name="PatientForm" ng-submit="AddUpdatePatient()">
  <table>
    <tr>
      <td>
        <input class="form-control" type="text" readonly placeholder="Key (Automatic)" ng-model="PatientID" />
      </td>
      <td>
        <input id="FormFocus" name="FirstName" class="form-control" type="text" placeholder="FirstName" ng-model="FirstName" ng-minlength="3" required />
      </td>
      <td>
        <input name="LastName" class="form-control" type="text" placeholder="LastName" ng-model="LastName" ng-minlength="3" required />
      </td>
      <td>
        <input class="form-control" type="text" placeholder="Disease" ng-model="Disease" name="Disease" ng-minlength="3" required />
      </td>
      <td>
        <input class="form-control" type="number" placeholder="Phone No." ng-model="PhoneNo" name="PhoneNo" ng-pattern="/^[789]\d{9}$/" required />
      </td>
      <td>
        <input type="file" ng-file-select="onFileSelect($files)" class="form-control" ng-model="PhotoURL" required />
      </td>
      <td colspan="2">
        <input type="submit" value="save" class="btn btn-success" ng-disabled="PatientForm.PhoneNo.$dirty && PatientForm.PhoneNo.$invalid || PatientForm.LastName.$dirty && PatientForm.LastName.$invalid || PatientForm.FirstName.$dirty && PatientForm.FirstName.$invalid || PatientForm.Disease.$dirty && PatientForm.Disease.$invalid" />
        <input type="button" value="cancel" class="btn btn-primary" ng-click="CancelForm()" />
       </td>
       </tr>
       <tr>
        <td></td>
       <td><span class="eror-text" ng-show="PatientForm.FirstName.$error.minlength">min 3 letters</span></td>
       <td><span class="eror-text" ng-show="PatientForm.LastName.$error.minlength">min 3 letters</span></td>
       <td><span class="eror-text" ng-show="PatientForm.Disease.$error.minlength">min 3 letters</span></td>
       <td><span class="eror-text" ng-show="PatientForm.PhoneNo.$error.pattern">Invalid phone no</span></td>
     </tr>
   </table>
 </form>

Here is my Angular code:

var app = angular.module('StudentApp', ['ngFileUpload']);
app.controller("StudentCtrl", function ($scope, angularService) {

    $scope.selectedFile = [];

    $scope.onFileSelect = function ($files) {
        alert("where am I ???");
    }

$scope.AddUpdatePatient = function () {
    var file = $scope.selectedFile[0];
    alert($scope.PhotoURL);
    var Patient = {
        FirstName: $scope.FirstName,
        LastName: $scope.LastName,
        Disease: $scope.Disease,
        PhoneNo: $scope.PhoneNo
    };
    var getAction = $scope.Action;

    if (getAction == "Update") {
        Patient.PatientID = $scope.PatientID;
        var getData = angularService.UpdatePatient(Patient,file);
        getData.then(function (msg) {
            GetAllPatients();
            alert(msg.data);
            $scope.divPatient = false;
        }, function () {
            alert('Error in updating record');
        });
    } else {
        var getData = angularService.AddPatient(Patient);
        getData.then(function (msg) {
            GetAllPatients();
            alert(msg.data);
            $scope.divPatient = false;
        }, function () {
            alert('Error in adding record');
        });
    }
}

My dependencies:

bundles.Add(new ScriptBundle("~/bundles/CustomPlugins").Include(
                  "~/Scripts/ng-file-upload-shim.min.js",
                  "~/scripts/angular.min.js",
                  "~/Scripts/ng-file-upload.min.js"));

@Scripts.Render("~/bundles/jquery")
@Scripts.Render("~/bundles/bootstrap")
@Scripts.Render("~/bundles/CustomPlugins")

I have tried using onchange:

onchange="angular.element(this).scope().selectFileforUpload(this.files)"

But I am unable to send the file to my action result, as it is showing as null:

$scope.selectFileforUpload = function (files) {
    $scope.selectedFile = files;
}

$scope.AddUpdatePatient = function () {
    var file = $scope.selectedFile[0];
    var Patient = {
        FirstName: $scope.FirstName,
        LastName: $scope.LastName,
        Disease: $scope.Disease,
        PhoneNo: $scope.PhoneNo
    };
        var getData = angularService.AddPatient(Patient,filee);
        getData.then(function (msg) {
            GetAllPatients();
            alert(msg.data);
            $scope.divPatient = false;
        }, function () {
            alert('Error in adding record');
        });
}

Here is my service code:

this.AddPatient = function (patient, file) {
    alert("in services" + filee);
    var response = $http({
        method: "post",
        url: "AddPatient",
        data: JSON.stringify(patient),
        dataType: "json",
        file : file
    });
    return response;
}

And finally, my action result:

public string AddPatient(Patient patient,HttpPostedFileBase file)
    {
         // I'm getting patient data that is fine, but file is showing me null
    }

Is there anything wrong with my service method? Or do you know how to send a form along with files to the action result in MVC controller? I have heard some people use "new FormData", but I am willing to learn or use it if it solves my problem.