Exemplo n.º 1
0
        /// <summary>
        /// Shallow copy an object
        /// </summary>
        /// <param name="fact"></param>
        /// <returns></returns>
        /// <remarks> Why not use object.MemberwiseClone() directly?
        /// Because it will cause "The entity wrapper stored in the proxy does not reference the same proxy." error.
        /// When you MemberwiseClone an EF-loaded entity, you're cloning the proxy class as well. One of the things a proxy class carries around is a reference to the wrapper fo the given entity. Because a shallow copy only copies a reference to the wrapper, you suddenly have two entities that have the same wrapper instance.At this point, EF thinks you've created or borrowed a different proxy class for your entity which it assumes is for purposes of mischief and blocks you.</remarks>
        public static Fact Clone(Fact fact)
        {
            var newFact = new Fact();

            newFact.Assign(fact);
            return(newFact);
        }