void doneButton_Click(object sender, EventArgs e)
        {
            TodoistService todoistService = new TodoistService();

            var commandTimeGenerated = DateTime.Now;

            Item Task = new Item
            {
                content = ContentTextBox.Text,
                date_string = DateStringTextBox.Text,
                project_id = projectSelected.id
            };

            doneButton.IsEnabled = false;

            todoistService.AddTaskToProject(commandTimeGenerated, Task,
            (data) =>
            {
                todoistService.GetData(
                (fullData) =>
                {
                    app.projects = fullData.Projects;
                    app.notes = fullData.Notes;
                    app.items = fullData.Items;

                    var tempID = Utils.DateTimeToUnixTimestamp(commandTimeGenerated).ToString();
                    Task.id = data.TempIdMapping[tempID];
                    Task = app.items.Where(x => x.id == Task.id).FirstOrDefault();

                    MainTodoistPage.updateProjectList(fullData.Projects);
                    ProjectDetail.showMessage = (progress) =>
                    {
                        Utils.ProgressIndicatorStatus(String.Format("\"{0}\" added.", Task.content), progress);
                        ProjectDetail.showMessage = null;
                    };
                },
                (errorMessage) =>
                {
                },
                () =>
                {
                    doneButton.IsEnabled = true;

                    var currentPage = app.RootFrame.Content as PhoneApplicationPage;

                    if (currentPage == this)
                        NavigationService.GoBack();
                });
            },
            (errorMsg) =>
            {
                MessageBox.Show(Utils.Message(errorMsg), "Metroist", MessageBoxButton.OK);
            });

            //NavigationService.GoBack();
        }