/// <summary>
/// Gets the or create behavior.
/// </summary>
/// <param name="element">The element.</param>
/// <returns></returns>
private static MouseDownBehavior GetOrCreateBehavior(RibbonTab element)
{
MouseDownBehavior behavior = element.GetValue(ItemClickCommandBehaviorProperty) as MouseDownBehavior;
if (behavior == null)
{
behavior = new MouseDownBehavior(element);
element.SetValue(ItemClickCommandBehaviorProperty, behavior);
}
return(behavior);
}