System.Data.Linq.ChangeConflictException: Row not found or changed

Question

I am trying to delete a selected gridview row using LINQ (No LINQDataSource).

When the selection is changed, the detailsview binding is changed also. I can add a new

Answer 1

You are getting this error quite possibly because one of your fields has something different in the Linq To SQL designer and in the actual database.

In my case, it was because one of the fields was nullable in the database and not nullable in the designer, making it nullable in the designer as well solved the problem immediately.