/// <summary>
/// Adds a two-state button to this group.
/// </summary>
/// <param name="button">The button to be added</param>
public virtual void Add(ToggleButton button)
{
if (button != null && !group.Contains(button))
{
group.Add(button);
button.ActionPerformedEvent += handler;
}
}
/// <summary>
/// Removes a two-state button from this group.
/// </summary>
/// <param name="button">The button to be removed</param>
/// <returns></returns>
public virtual bool Remove(ToggleButton button)
{
bool removed = group.Remove(button);
if (removed)
button.ActionPerformedEvent -= handler;
return removed;
}