Note that Entity Framework converts our code into queries that the database understand and handles all data interaction and low-level details.Also notice in the code above, that we are accessing data as objects and properties.
Currently i'm trying to update my database with a new highscore when ever the player dies. ID = 6; //I just hardcoded in 6 to make sure i wasent because of the new Id //thing, and i have checked if theres already something on the sixths spot as well.
But it keeps throwing that exception at me, no matter what i choose to try and save.
Main() in Matematik Spil Menu\Game1.cs:line 120 Inner Exception: System. Entity Command Compilation Exception Message=An error occurred while preparing the command definition.
Create Command(Db Modification Command Tree command Tree) at System.
Not Supported Exception Message=Server-generated keys and server-generated values are not supported by SQL Server Compact.
Update(IEntity State Manager state Manager, IEntity Adapter adapter) Inner Exception: System. The steps to update an existing entity are quite simple.First retrieve an instance of the entity from the Entity Set), then edit the properties of the Entity and finally call Save Changes() on the context. Create Command(Update Translator translator, Dictionary`2 identifier Values) at System. Execute(Update Translator translator, Entity Connection connection, Dictionary`2 identifier Values, List`1 generated Values) at System. In the code shown above, we are modifying the newly inserted record (‘ID=DNC’) we created in the previous step and then add the ‘CEO’ value for the Contact Title column.