private static void CommandProperty_Changed(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs e)
{
var element = dependencyObject as FrameworkElement;
if (element != null)
{
DropBehavior behavior = GetOrCreateBehavior(element);
behavior.Command = e.NewValue as ICommand;
}
}
private static DropBehavior GetOrCreateBehavior(FrameworkElement element)
{
DropBehavior behavior = element.GetValue(DropBehaviorProperty) as DropBehavior;
if (behavior == null)
{
behavior = new DropBehavior(element);
element.SetValue(DropBehaviorProperty, behavior);
}
return(behavior);
}
public static void SetDropBehavior(DependencyObject obj,
DropBehavior value)
{
obj.SetValue(DropBehaviorProperty, value);
}
