HBM.GeneralManagement.Room.SelectAllDataset C# (CSharp) Метод

        public DataSet SelectAllDataset()
        {
            return (new RoomDAO()).SelectAll(this);
        }

        protected void LoadRooms()
        {
            try
            {
                rooms.CompanyId    = SessionHandler.CurrentCompanyId;
                dsData             = rooms.SelectAllDataset();
                gvRooms.DataMember = dsData.Tables[0].TableName;
                gvRooms.DataSource = dsData.Tables[0];

                dsData.Tables[0].PrimaryKey      = new DataColumn[] { dsData.Tables[0].Columns["RoomId"] };
                Session[Constants.SESSION_ROOMS] = dsData;
            }
            catch (System.Exception)
            {
            }
        }