private void PopActiveBehavior()
{
ToolBehavior activeBehavior = this.ActiveBehavior;
if (activeBehavior == null)
{
throw new InvalidOperationException(ExceptionStringTable.EventRouterCannotPopBehavior);
}
this.behaviorStack.Pop();
activeBehavior.Suspend();
activeBehavior.Detach();
}
public void PushBehavior(ToolBehavior newActiveBehavior)
{
if (newActiveBehavior == null)
{
throw new ArgumentNullException("newActiveBehavior");
}
ToolBehavior activeBehavior = this.ActiveBehavior;
if (activeBehavior != null)
{
activeBehavior.Suspend();
}
this.behaviorStack.Push(newActiveBehavior);
newActiveBehavior.Attach(this);
this.ResumeActiveBehavior();
}
