void DisableOthers(IPopUp disablingPopUp)
{
if (thisActivePopUp == null)
{
thisRootUIElement.PopUpDisableRecursivelyDownTo(disablingPopUp);
}
else
{
if (disablingPopUp.IsAncestorOf(thisActivePopUp))
{
return;
}
thisActivePopUp.PopUpDisableRecursivelyDownTo(disablingPopUp);
}
}