Question on the proper use of dateCreated.

@operator

I will be expanding my search to include only sales orders within a specified date range. Does anyone have any information regarding the proper use of the member dateCreated?

             //Start              TransactionSearch xactionsearch = new TransactionSearch();                //// ////              SearchEnumMultiSelectField soField = new SearchEnumMultiSelectField();              System.String[] searchValueStringArray = new System.String[1];                //// ////Do setup to search for a sales order              soField.@operator = SearchEnumMultiSelectFieldOperator.anyOf;              soField.operatorSpecified = true;              searchValueStringArray[0] = "_salesOrder";              soField.searchValue = searchValueStringArray;                //// ////A basic search for the transaction type sales order              TransactionSearchBasic xactionBasic = new TransactionSearchBasic();              xactionBasic.type = soField;                ////TransactionSearchBasic.dateCreated???              //xactionBasic.dateCreated = ;                //// ////                //We are doing a basic search              xactionsearch.basic = xactionBasic;                //Get results              SearchResult res = _service.search(xactionsearch);                if (res.status.isSuccess)              {                  Console.Write("Alert Sepy!");              }