/// <summary>
/// Saves or updates the the specified question item based on the CurrentUIMode
/// </summary>
/// <param name="QuestionItem">The question item.</param>
/// <returns>Task.</returns>
async internal Task Save(QuestionItem questionItem)
{
if (CurrentUIMode == UIModes.Adding)
{
await AddQuestion(questionItem);
}
else if (CurrentUIMode == UIModes.Editing)
{
await UpdateQuestion(questionItem);
}
}
/// <summary>
/// Interface to delete the question.
/// </summary>
/// <param name="questionItem">Question item.</param>
public async void DeleteQuestion(QuestionItem questionItem)
{
try
{
Task deleteQuestion = theQuestionInfo.DeleteQuestion(questionItem);
await UIUtilities.ShowIndeterminateProgressIfNecessary(deleteQuestion, string.Format("Deleting task: [{0}] ...", questionItem.QuestionText));
}
finally
{
NavigationController.PopViewControllerAnimated(true);
}
}
/// <summary>
/// Interface to create the question.
/// </summary>
/// <param name="sender">Sender.</param>
/// <param name="args">Arguments.</param>
public void CreateQuestion(object sender, EventArgs args)
{
// first, add the question to the underlying data
var newQuestionItem = new QuestionItem();
theQuestionInfo.CurrentUIMode = UIModes.Adding;
// then open the detail view to edit it
var detail = Storyboard.InstantiateViewController("QuestionDetailViewController") as QuestionDetailViewController;
detail.SetQuestion(this, newQuestionItem);
NavigationController.PushViewController(detail, true);
}
/// <summary>
/// Interface to save the question.
/// </summary>
/// <param name="questionItem">Question item.</param>
public async void SaveQuestion(QuestionItem questionItem)
{
try
{
Task saveTask = theQuestionInfo.Save(questionItem);
if (theQuestionInfo.CurrentUIMode == UIModes.Adding)
{
await UIUtilities.ShowIndeterminateProgressIfNecessary(saveTask, string.Format("Adding task: [{0}] ...", questionItem.QuestionText));
}
else
{
await UIUtilities.ShowIndeterminateProgressIfNecessary(saveTask, string.Format("Updating task: [{0}] ...", questionItem.QuestionText));
}
await RefreshAsync();
}
finally
{
NavigationController.PopViewControllerAnimated(true);
}
}
/// <summary>
/// Sets the question and delegate, used externally.
/// </summary>
/// <param name="d">D.</param>
/// <param name="question">Question.</param>
public void SetQuestion(MasterViewController d, QuestionItem question)
{
Delegate = d;
currentQuestion = question;
}
/// <summary>
/// Updates the question
/// </summary>
/// <returns>Task.</returns>
async internal Task UpdateQuestion(QuestionItem questionItem)
{
await _questionItemTable.UpdateAsync(questionItem);
}
/// <summary>
/// Adds the question
/// </summary>
/// <returns>Task.</returns>
async internal Task AddQuestion(QuestionItem questionItem)
{
await _questionItemTable.InsertAsync(questionItem);
}
/// <summary>
/// Deletes the question then refreshes the question list
/// </summary>
async internal Task DeleteQuestion(QuestionItem questionItem)
{
await _questionItemTable.DeleteAsync(questionItem);
await RefreshQuestions();
}