static void CreateDragAdorner()
{
DataTemplate template = GetDragAdornerTemplate(m_DragInfo.VisualSource);
if (template != null)
{
UIElement rootElement = (UIElement)Application.Current.MainWindow.Content;
UIElement adornment = null;
if (m_DragInfo.Data is IEnumerable && !(m_DragInfo.Data is string))
{
if (((IEnumerable)m_DragInfo.Data).Cast<object>().Count() <= 10)
{
ItemsControl itemsControl = new ItemsControl();
itemsControl.ItemsSource = (IEnumerable)m_DragInfo.Data;
itemsControl.ItemTemplate = template;
// The ItemsControl doesn't display unless we create a border to contain it.
// Not quite sure why this is...
Border border = new Border();
border.Child = itemsControl;
adornment = border;
}
}
else
{
ContentPresenter contentPresenter = new ContentPresenter();
contentPresenter.Content = m_DragInfo.Data;
contentPresenter.ContentTemplate = template;
adornment = contentPresenter;
}
if (adornment != null)
{
adornment.Opacity = 0.5;
DragAdorner = new DragAdorner(rootElement, adornment);
}
}
}
