public static void Delete(int group_id)
{
if (!CanDelete(group_id))
{
throw new AccessDeniedException();
}
int IMGroupId = -1;
using (IDataReader reader = DBGroup.GetGroup(group_id))
{
if (reader.Read())
{
if (reader["IMGroupId"] != DBNull.Value)
{
IMGroupId = (int)reader["IMGroupId"];
}
}
}
using (DbTransaction tran = DbTransaction.Begin())
{
DBGroup.Delete(group_id);
if (IMGroupId > 0)
{
IMGroup.Delete(IMGroupId);
}
tran.Commit();
}
}