Question

它工作然后它突然失败了。尝试一些解析，但没有运气。 Error Code: SqlException

Message Conversion failed when converting from a character string to uniqueidentifier.

堆栈跟踪

[SalesOrderDetailsGet：14/08/2015上午07时59分29秒]：[要求{的SalesOrderID：676b44dcb0c245a5a3191cda194b3267}] System.Data.SqlClient.SqlException（0x80131904）：从字符串转换为uniqueidentifier当转换失败。在System.Data.SqlClient.SqlConnection.OnError（SqlException异常，布尔breakConnection，动作1 wrapCloseInAction) at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action 1 wrapCloseInAction）在System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning（TdsParserStateObject stateObj，布尔callerHasConnectionLock，布尔asyncClose）在System.Data .SqlClient.TdsParser.TryRun（RunBehavior runBehavior，SqlCommand cmdHandler，SqlDataReader dataStream，BulkCopySimpleResultSet bulkCopyHandler，TdsParserStateObject stateObj，Boolean＆amp; dataReady）位于System.Data.SqlClient.SqlDataReader的System.Data.SqlClient.SqlDataReader.TryHasMoreRows（Boolean＆amp; moreRows）。在ServiceStack.OrmLite.OrmLiteResultsFilterExtensions.ConvertTo [T]的ServiceStack.OrmLite.OrmLiteUtils.ConvertTo [T]（IDataReader dataReader，IOrmLiteDialectProvider dialectProvider）的System.Data.SqlClient.SqlDataReader（）处的TryReadInternal（Boolean setTimeout，Boolean＆amp; more）（IDbCommand dbCmd，String sql）at ServiceStack.OrmLite.OrmLiteReadCommandExtensions.SingleById [T]（IDbCommand dbCmd，O bject值）ServiceStack.OrmLite.OrmLiteReadApi＆LT;＆GT; c__DisplayClass3c 1.<SingleById>b__3b(IDbCommand dbCmd) at ServiceStack.OrmLite.OrmLiteExecFilter.Exec[T](IDbConnection dbConn, Func 2滤波器）在ServiceStack.OrmLite.OrmLiteReadExpressionsApi.Exec [T]（的IDbConnection dbConn，Func键2 filter) at ServiceStack.OrmLite.OrmLiteReadApi.SingleById[T](IDbConnection dbConn, Object idValue) at BookWS.ServiceLogic.Sales.SalesOrderDataProcess.GetSalesOrderById(Guid id) in C:\Users\Carl\Documents\Visual Studio 2013\Projects\BookWS\BookWS\BookWS.ServiceLogic\Sales\SalesOrderDataProcess.cs:line 38 at BookWS.ServiceInterface.SalesOrderServices.Get(SalesOrderDetailsGet request) in C:\Users\Carl\Documents\Visual Studio 2013\Projects\BookWS\BookWS\BookWS.ServiceInterface\Sales\SalesOrderServices.cs:line 40 at lambda_method(Closure , Object , Object ) at ServiceStack.Host.ServiceRunner 1.Execute（IRequest请求，对象实例，TRequest requestDto）ClientConnectionId：0a6a1c79-14e9-4575-9fab-21c542508a78错误号码：8169，状态：2，类：16

GET：

public Object Get(SalesOrderDetailsGet request)
        {
            SalesOrderDataProcess sODP = new SalesOrderDataProcess(Db);
            SalesOrder salesOrderTemp = sODP.GetSalesOrderById(request.SalesOrderId);

数据层：

 public SalesOrder GetSalesOrderById(Guid id)
        {
            return _dbConnection.SingleById<SalesOrder>(id);
        }

跑步停在了上面的区块

return _dbConnection.SingleById<SalesOrder>(id);

非常感谢。

Answer 1

这是common SQL Server exception，表示无法将字符串值转换为 uniqueidentifier （即GUID）。

返回并确保表中的所有数据都具有uniqueidentifier字段的值，并且该值是有效的GUID。

ServiceStack - OrmLite（可能） - 从字符串转换为uniqueidentifier时转换失败

1 个答案: