public List <LogRecord> GetVirtualMachineAuditLog(int itemId, DateTime startPeriod, DateTime endPeriod,
                                                   int severity, string sortColumn, int startRow, int maximumRows)
 {
     return(VirtualizationServerController.GetVirtualMachineAuditLog(itemId, startPeriod, endPeriod,
                                                                     severity, sortColumn, startRow, maximumRows));
 }