private async System.Threading.Tasks.Task  DeleteTask(string taskid)
        {
            AreBtnsEn = false;
            bool answer = await Application.Current.MainPage.DisplayAlert("Delete", "Are you sure?", "Yes", "No");

            if (answer)
            {
                var deleteResult = await n_Restctrl.DeleteTask(taskid);

                if (deleteResult.StatusCode == HttpStatusCode.OK)
                {
                    await Refresh();
                }
                else if (deleteResult.StatusCode == HttpStatusCode.Unauthorized)
                {
                    await Application.Current.MainPage.DisplayAlert("Sorry", "You do not have permission to do this", "Ok");
                }
                else
                {
                    await Application.Current.MainPage.DisplayAlert("Error", "Something went wrong, check your connection", "Ok");
                }
            }
            AreBtnsEn = true;
        }