The object cannot be deleted because it was not found in the ObjectStateManager

by

It means that entity is not attached (it was not loaded by the same context instance). Try this:

protected MyEntities sqlEntities;

public virtual void Delete(TEntity entity)
{
    sqlEntities.Attach(entity);
    sqlEntities.DeleteObject(entity);
    sqlEntities.SaveChanges();
}

More Related Contents:

  1. Entity Framework Timeouts
  2. The result of a query cannot be enumerated more than once
  3. How to Format a date pass as a parameter to a function and return data is a string with “yyyy/mm/dd” format?
  4. Memory leak in Data Access layer using enterprise library
  5. There is already an open DataReader associated with this Command which must be closed first
  6. How can I get a list of users from active directory?
  7. MVC Razor view nested foreach’s model
  8. HttpContext.Current.Session is null when routing requests
  9. The mapping of CLR type to EDM type is ambiguous with EF 6 & 5?
  10. DataView.Sort – more than just asc/desc (need custom sort)
  11. HttpWebRequest not passing Credentials
  12. How to recognize if a string contains unicode chars?
  13. What happens in BeginProcessRequest()?
  14. How to restrict file type in FileUpload control
  15. Can’t get sql server compact 3.5 / 4 to work with ASP .NET MVC 2
  16. The data source does not support server-side data paging
  17. IIS Express Immediately shutting-down running site after stopping web application
  18. How to change CurrentCulture at runtime?
  19. How to return a PDF from a Web API application
  20. Fancybox – ASP.NET button not working
  21. Opening password-protected pdf file with iTextSharp
  22. Comparing Object properties using reflection
  23. UTF-8 or UTF-16 or UTF-32 or UCS-2
  24. Select multiple fields group by and sum
  25. Read a Registry Key
  26. Text on an Image button in c# asp.net 3.5
  27. How to return XML in ASP.NET?
  28. iTextSharp international text
  29. Can’t find how to use HttpContent
  30. LINQ to Entities does not recognize the method ‘System.String ToString()’ method in MVC 4

Leave a Comment