/// <summary>
/// Initializes a new instance of the <see cref="ChecklistQAMapViewModel"/> class.
/// </summary>
/// <param name="model">
/// The model.
/// </param>
/// <param name="parentViewModel">
/// The parent view model.
/// </param>
/// <param name="validationHelper">
/// The checklist validation helper.
/// </param>
public ChecklistQAMapViewModel(ChecklistQAMapEdit model, IChecklistFieldQAMapViewModel parentViewModel, IChecklistValidationHelper validationHelper)
{
if (model == null)
throw new ArgumentNullException("model");
if (parentViewModel == null)
throw new ArgumentNullException("parentViewModel");
if (validationHelper == null)
throw new ArgumentNullException("validationHelper");
Model = model;
ParentViewModel = parentViewModel;
ValidationHelper = validationHelper;
_selectedQuestionField = FindQuestionField();
_answerField = FindAnswerField();
if (_answerField != null && CanIncludeInAvailableAnswerFields(_answerField))
_selectedAnswerField = _answerField;
_questionFieldsChangedListener = new QuestionFieldsChangedListener(this, ParentViewModel)
{
OnEventAction = OnQuestionFieldsChanged,
OnDetachAction = StaticQ
};
ParentViewModel.QuestionFieldsChanged += _questionFieldsChangedListener.OnEvent;
_answerFieldsChangedListener = new AnswerFieldsChangedListener(this, ParentViewModel)
{
OnEventAction = OnAnswerFieldsChanged,
OnDetachAction = StaticA
};
ParentViewModel.AnswerFieldsChanged += _answerFieldsChangedListener.OnEvent;
}
/// <summary>
/// Creates a map view model.
/// </summary>
/// <param name="model">
/// The model.
/// </param>
/// <param name="parentViewModel">
/// The parent view model.
/// </param>
/// <returns>
/// The <see cref="IChecklistQAMapViewModel"/>.
/// </returns>
public IChecklistQAMapViewModel CreateViewModel(ChecklistQAMapEdit model, IChecklistFieldQAMapViewModel parentViewModel)
{
return new ChecklistQAMapViewModel(model, parentViewModel, ValidationHelper);
}
