2
엔티티 프레임 워크 오류 던지고 EntitySet 바이너리 데이터를 업데이트 할 수 없습니다엔티티 프레임 워크
Test 'WorkerProcessService.Test.WorkerProcessMonitorTests.Test' failed: System.Data.UpdateException : Unable to update the EntitySet 'Processor' because it has a DefiningQuery and no <InsertFunction> element exists in the <ModificationFunctionMapping> element to support the current operation.
at System.Data.SqlClient.SqlGen.DmlSqlGenerator.ExpressionTranslator.Visit(DbScanExpression expression)
at System.Data.Common.CommandTrees.DbScanExpression.Accept(DbExpressionVisitor visitor)
at System.Data.SqlClient.SqlGen.DmlSqlGenerator.GenerateInsertSql(DbInsertCommandTree tree, SqlVersion sqlVersion, List`1& parameters)
at System.Data.SqlClient.SqlGen.SqlGenerator.GenerateSql(DbCommandTree tree, SqlVersion sqlVersion, List`1& parameters, CommandType& commandType, HashSet`1& paramsToForceNonUnicode)
at System.Data.SqlClient.SqlProviderServices.CreateCommand(DbProviderManifest providerManifest, DbCommandTree commandTree)
at System.Data.SqlClient.SqlProviderServices.CreateCommand(DbCommandTree commandTree)
at System.Data.Mapping.Update.Internal.UpdateTranslator.CreateCommand(DbModificationCommandTree commandTree)
at System.Data.Mapping.Update.Internal.DynamicUpdateCommand.CreateCommand(UpdateTranslator translator, Dictionary`2 identifierValues)
at System.Data.Mapping.Update.Internal.DynamicUpdateCommand.Execute(UpdateTranslator translator, EntityConnection connection, Dictionary`2 identifierValues, List`1 generatedValues)
at System.Data.Mapping.Update.Internal.UpdateTranslator.Update(IEntityStateManager stateManager, IEntityAdapter adapter)
at System.Data.EntityClient.EntityAdapter.Update(IEntityStateManager entityCache)
at System.Data.Objects.ObjectContext.SaveChanges(SaveOptions options)
at System.Data.Objects.ObjectContext.SaveChanges()
WorkerProcessMonitor.cs(79,0): at Star.Portal.Services.WorkerProcessMonitor.AddComponent(Byte[] component)
WorkerProcessMonitorTests.cs(55,0): at WorkerProcessService.Test.WorkerProcessMonitorTests.Test()
을 나는 테이블 등을들 수 있으며, 자동 모델에게 edmx 생성 한
CREATE TABLE [dbo].[Processor](
[ProcessorID] [int] IDENTITY(1,1) NOT NULL,
[ProcessorDLL] [varbinary](max) NULL,
)
는 folowing
를 업데이트 실패public void AddComponent(byte[] component)
{
Processor p = new Processor()
{
ProcessorDLL = component,
};
using (var cn = GetWorkerProcessEntities())
{
cn.AddToProcessors(p);
cn.SaveChanges();
}
}
질문 : SQL Server에서 이진 저장 장치를 구현하기 위해 특정 작업을 수행해야합니까?
http://www.dotnetmonster.com/Uwe/Forum.aspx/dotnet-ado-net/21686/EF-or-LINQtoSQL-and-VarBinary-Max –
무엇이'cn, AddToProcessors (p);'정확히하는 것? – msarchet
프로세서의 ProcessorID에 자동 증가를 설정 했습니까 ??? – Syeda