6
mi sono guardato intorno e non riesco a capire cosa c'è che non va.Si è verificato un errore durante l'aggiornamento delle voci. Vedi l'eccezione interna per i dettagli. - Linq to Entity
Attualmente sto cercando di aggiornare il mio database con un nuovo punteggio quando il giocatore muore. Ma continua a lanciare quell'eccezione contro di me, indipendentemente da cosa scelgo di provare e salvare.
Codice:
HighScore hs = new HighScore();
var id = from i in db.HighScores
orderby i.ID descending
select i;
int newId = 0;
if (id.Count() == 0)
{
newId = 1;
}
else
{
newId = id.First().ID + 1;
}
hs.ID = 6; //I just hardcoded in 6 to make sure i wasent because of the newId //thing, and i have checked if theres already something on the sixths spot as well.
hs.UserHighscore = 100;
hs.HighscoreUsername = "test";
hs.GameID = 1;
db.HighScores.AddObject(hs);
db.SaveChanges();
Ho controllato, ancora e ancora, e ho appena cant sembrano per capire quale sia il problema.
Qualsiasi aiuto sarebbe appagato.
L'eccezione:
System.Data.UpdateException was unhandled
Message=An error occurred while updating the entries. See the inner exception for details.
Source=System.Data.Entity
StackTrace:
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()
at MatematikSpilMenu.SaveBunniesSceen.SaveHighscore() in MatematikSpilMenu\SaveBunniesSceen.cs:line 173
at MatematikSpilMenu.SaveBunniesSceen.Update(GameTime gameTime, Boolean otherScreenIsActive, Boolean coveredByOtherScreens) in C:\Users\Etarnalazure-Alien\documents\visual studio 2010\Projects\MatematikSpilMenu\MatematikSpilMenu\MatematikSpilMenu\SaveBunniesSceen.cs:line 110
at MatematikSpilMenu.ScreenManager.Update(GameTime gameTime) in MatematikSpilMenu\ScreenManager.cs:line 101
at Microsoft.Xna.Framework.Game.Update(GameTime gameTime)
at Microsoft.Xna.Framework.Game.Tick()
at Microsoft.Xna.Framework.Game.HostIdle(Object sender, EventArgs e)
at Microsoft.Xna.Framework.GameHost.OnIdle()
at Microsoft.Xna.Framework.WindowsGameHost.RunOneFrame()
at Microsoft.Xna.Framework.WindowsGameHost.ApplicationIdle(Object sender, EventArgs e)
at System.Windows.Forms.Application.ThreadContext.System.Windows.Forms.UnsafeNativeMethods.IMsoComponent.FDoIdle(Int32 grfidlef)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.Run(Form mainForm)
at Microsoft.Xna.Framework.WindowsGameHost.Run()
at Microsoft.Xna.Framework.Game.RunGame(Boolean useBlockingRun)
at Microsoft.Xna.Framework.Game.Run()
at MatematikSpilMenu.Program.Main() in MatematikSpilMenu\Game1.cs:line 120
InnerException: System.Data.EntityCommandCompilationException
Message=An error occurred while preparing the command definition. See the inner exception for details.
Source=System.Data.Entity
StackTrace:
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)
InnerException: System.NotSupportedException
Message=Server-generated keys and server-generated values are not supported by SQL Server Compact.
Source=System.Data.SqlServerCe.Entity
StackTrace:
at System.Data.SqlServerCe.SqlGen.DmlSqlGenerator.GenerateReturningSql(StringBuilder commandText, DbModificationCommandTree tree, ExpressionTranslator translator, DbExpression returning)
at System.Data.SqlServerCe.SqlGen.DmlSqlGenerator.GenerateInsertSql(DbInsertCommandTree tree, List`1& parameters, Boolean isLocalProvider)
at System.Data.SqlServerCe.SqlGen.SqlGenerator.GenerateSql(DbCommandTree tree, List`1& parameters, CommandType& commandType, Boolean isLocalProvider)
at System.Data.SqlServerCe.SqlCeProviderServices.CreateCommand(DbProviderManifest providerManifest, DbCommandTree commandTree)
at System.Data.SqlServerCe.SqlCeProviderServices.CreateDbCommandDefinition(DbProviderManifest providerManifest, DbCommandTree commandTree)
at System.Data.Common.DbProviderServices.CreateCommandDefinition(DbCommandTree commandTree)
at System.Data.Common.DbProviderServices.CreateCommand(DbCommandTree commandTree)
at System.Data.Mapping.Update.Internal.UpdateTranslator.CreateCommand(DbModificationCommandTree commandTree)
InnerException:
Sarebbe più facile se potessimo avere il messaggio dell'eccezione interna effettiva ...? Che cos'è GameID? una chiave straniera? c'è un gioco con ID 1? – Kek
GameID è l'ID che uso per estrarre il punteggio appropriato per il gioco appropriato. GameID = 1 è usato per dire al gioco dove dovrebbe essere tirato fuori il punteggio. – Etarnalazure
Ma otterrò l'eccezione interna – Etarnalazure