Question

I have a LINQ -> Class file named MoviesDB.dbml, I have added one table “Movie” to it, i have created a class “Movies” in which i have implemented inside all the methods.

Method GetAllMovies which gets a List, when binding the list i get the following:

Type 'DyMvWebsite.Movie' in Assembly 'DyMvWebsite, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' is not marked as serializable. 

The code for the Method:

        public static List<Movie> GetAllMovies()
    {
        List<Movie> oMoviesList = new List<Movie>();

        using (MoviesDBDataContext oMoviesDBDataContext = new MoviesDBDataContext())
        {
            oMoviesList = oMoviesList.ToList<Movie>(); ;
        }

        return oMoviesList;
    }

After that i have tried putting the [Serializable] attribute in the “Movies” class and tried putting it in the linq designer file too, but same problem.

Edit:

After following what ‘Massimiliano Peluso’ suggested, i received a new error:

Type 'System.Data.Linq.ChangeTracker+StandardChangeTracker' in Assembly 'System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' is not marked as serializable. 

Answer 1

Try this out

  MoviesDBDataContext.ObjectTrackingEnabled = false;

before firing the query.

If this still fails, then the work around will be create serializable class similar to Movie class, and map the properties.