如何使用graphdiff忽略属性？

Question

I'm using EF6 with graphdiff and EDMX and must ignore a property of a particular entity.

How should I do since even getting the property the insert or update always leave the NULL field?

Answer 1

The way I was able to work around this while still benefiting from the ease of GraphDiff was as follows:

• Set your object equal to the GraphDiff method
• Set each property you wish to ignore to .IsModified = false

(Example)

  user = db.UpdateGraph(user, map => map
            .AssociatedCollection(u => u.UserRoles)
            .AssociatedCollection(u => u.Teams));

    db.Entry(user).Property(u => u.Password).IsModified = false;
    db.Entry(user).Property(u => u.Salt).IsModified = false;

    _context.SaveChanges();