public void AddHostingUnit(HostingUnit hostingUnit)//Adds new Hosting unit;
{
if (checkID(hostingUnit.Owner.ID))
{
try
{
dal.AddHostingUnit(hostingUnit.Clone());
}
catch (DuplicateWaitObjectException e)
{
throw e;
}
}
else
{
throw new KeyNotFoundException("Owner ID is not valid\n");
}
}