public static void InsertOnSubmit(this DbSet<Forum> source, Forum forum)
{
if (forum.ForumID == default(int))
{
// New entity
source.Add(forum);
}
else
{
// Existing entity
source.Attach(forum);
}
}
public static void DeleteOnSubmit(this DbSet<Forum> source, Forum forum)
{
source.Remove(forum);
}