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Tuesday, 12 August 2014

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

8/12/2014 - By Pranav Singh 0

This article will show you how you can remove the remove the mention error “The object cannot be deleted because it was not found in the ObjectStateManager.” While performing the delete operation from .sdf database using linq query in entity framework.




So here is the solution for the error “The object cannot be deleted because it was not found in the ObjectStateManager.”

StudentManagerEntitie objentity = new StudentManagerEntitie();
            StudentDetail objstudentdetail = new StudentDetail();
            objstudentdetail.Id = Id;
            objentity.StudentDetails.Attach(objstudentdetail);
            objentity.DeleteObject(objstudentdetail);
            /*Save data to database*/
            objentity.SaveChanges();

In above code please check the bold part of the code this code will help you to remove the error.

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