public override void Attach(FrameworkElement element)
{
if (element == AttachedObject)
{
return;
}
if (null != AttachedObject)
{
throw new InvalidOperationException("Cannot Host TriggerAction Multiple Times");
}
// if (null != element && !AttachedObjectTypeConstraint.GetTypeInfo().IsAssignableFrom(element.GetType().GetTypeInfo()))
if (null != element && (null == AttachedObjectTypeConstraint || false == AttachedObjectTypeConstraint.IsInstanceOfType(element)))
{
throw new InvalidOperationException("Type Constraint Violated");
}
AttachedObject = element;
OnAssociatedObjectChanged();
base.Attach(element);
OnAttached();
}
private bool CheckTypeConstraint(FrameworkElement element)
{
//AttachedObjectTypeConstraint.GetTypeInfo().IsAssignableFrom(element.GetType().GetTypeInfo())
return(AttachedObjectTypeConstraint.IsInstanceOfType(element));
}
