void delegater_Bound(object sender, BindingEventArgs e)
{
Type itemType = e.Behavior.GetType();
if (itemType.IsSubclassOf(TypeToCatch) || itemType.Equals(TypeToCatch))
{
Add((T)e.Behavior);
}
}
void delegater_Unbound(object sender, BindingEventArgs e)
{
if (e.Behavior is T)
{
if (items.Contains((T)e.Behavior))
{
Remove((T)e.Behavior);
}
}
}