private void ActiveViews_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
switch (e.Action)
{
case NotifyCollectionChangedAction.Add:
ActiveViews.Add(e.NewItems[0].ToString());
break;
case NotifyCollectionChangedAction.Remove:
ActiveViews.Remove(e.OldItems[0].ToString());
break;
case NotifyCollectionChangedAction.Replace:
break;
case NotifyCollectionChangedAction.Move:
break;
case NotifyCollectionChangedAction.Reset:
ActiveViews.Clear();
foreach (var view in region.ActiveViews)
{
ActiveViews.Add(view.ToString());
}
break;
default:
break;
}
RemoveActiveViewCommand.RaiseCanExecuteChanged();
SelectedViewName = ActiveViews.FirstOrDefault();
}
/// <summary>
/// Marks the specified view as active.
/// </summary>
/// <param name="view">The view to activate.</param>
/// <remarks>If there is an active view before calling this method,
/// that view will be deactivated automatically.</remarks>
public override void Activate(object view)
{
object currentActiveView = ActiveViews.FirstOrDefault();
if (currentActiveView != null && currentActiveView != view && this.Views.Contains(currentActiveView))
{
base.Deactivate(currentActiveView);
}
base.Activate(view);
}
/// <summary>
/// Marks the specified view as active.
/// </summary>
/// <param name="view">The view to activate.</param>
/// <remarks>If there is an active view before calling this method,
/// that view will be deactivated automatically.</remarks>
public override void Activate(VisualElement view)
{
var currentActiveView = ActiveViews.FirstOrDefault();
if (currentActiveView != null && currentActiveView != view && Views.Contains(currentActiveView))
{
base.Deactivate(currentActiveView);
}
base.Activate(view);
}
