private static void CommandProperty_Changed(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs e)
{
Selector element = dependencyObject as Selector;
if (element != null)
{
MultiSelectionChangedBehavior behavior = GetOrCreateBehavior(element);
behavior.Command = e.NewValue as ICommand;
}
}
private static MultiSelectionChangedBehavior GetOrCreateBehavior(Selector element)
{
MultiSelectionChangedBehavior behavior = element.GetValue(MultiSelectionChangedBehaviourProperty) as MultiSelectionChangedBehavior;
if (behavior == null)
{
behavior = new MultiSelectionChangedBehavior(element);
element.SetValue(MultiSelectionChangedBehaviourProperty, behavior);
}
return(behavior);
}
public static void SetMultiSelectionChangedCommandBehavior(DependencyObject obj,
MultiSelectionChangedBehavior value)
{
obj.SetValue(MultiSelectionChangedBehaviourProperty, value);
}