/// <summary>
/// Create a matching view for a given ViewModel instance
/// </summary>
/// <typeparam name="Type">The type of the ViewModel</typeparam>
/// <param name="viewModel">The instance of the ViewModel</param>
/// <param name="key">The View identifiert (see AssociatedViewModelAttribute)</param>
/// <returns>An AbstractView instance if successful, null otherwise</returns>
public AbstractView ShowModal <Type>(Type viewModel, string key = null)
{
AbstractView abstractView = null;
if (_viewModelToViewMappings == null ||
!_viewModelToViewMappings.ContainsKey(typeof(Type)))
{
BuildOrUpdateAttributeDictionary();
}
List <TargetView> possibleViews = null;
if (!_viewModelToViewMappings.TryGetValue(typeof(Type), out possibleViews))
{
throw new ArgumentException("Unknown ViewModel type");
}
possibleViews = possibleViews.Where(view => view.AssociatedViewModel.IsModal).ToList();
if (possibleViews.Count == 0)
{
throw new ArgumentException("No modal view registered for this type of view model");
}
TargetView selectedView = null;
if (key == null)
{
if (possibleViews.Count == 1)
{
selectedView = possibleViews.First();
}
else
{
var defaultView = possibleViews.Where(item => item.AssociatedViewModel.IsDefault).FirstOrDefault();
if (defaultView != null)
{
selectedView = defaultView;
}
else
{
selectedView = possibleViews.FirstOrDefault();
}
}
}
else
{
selectedView = possibleViews.Where(item => item.AssociatedViewModel.Key == key).FirstOrDefault();
}
if (selectedView.CustomCreateMethod != null)
{
abstractView = selectedView.CustomCreateMethod(viewModel);
}
else
{
ContentControl result = null;
if (selectedView.AssociatedViewModel.FactoryMethod != null)
{
result = selectedView.AssociatedViewModel.FactoryMethod();
}
else
{
result = Activator.CreateInstance(selectedView.View) as ContentControl;
}
if (result != null)
{
result.DataContext = viewModel;
}
abstractView = new AbstractView(result);
}
abstractView.View.Loaded += (sender, e) =>
abstractView.View.MoveFocus(new TraversalRequest(FocusNavigationDirection.Next));
if (BeforeModalDialog != null)
{
BeforeModalDialog(abstractView.View, null);
}
if (WindowCreated != null)
{
WindowCreated(abstractView.View, null);
}
SetUnmanagedOwnerIfNecessary(abstractView.View as Window);
(abstractView.View as Window).ShowDialog();
if (AfterModalDialog != null)
{
AfterModalDialog(abstractView.View, null);
}
return(abstractView);
}
