Звучит как рекурсивный неглубокий клон. Я использовал следующее, но только на один уровень глубиной.
public static class EntityBaseExtensions
{
/// <summary>
/// Description: Creates a non-recursive shallow copy of an entity, only including public instance properties decorated with ColumnAttribute.
/// This will return an object without entity references.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="source"></param>
/// <returns>A non-recursive shallow copy of a LINQ entity</returns>
public static T ShallowClone<T>(this T source) where T : EntityBaseClass
{
// create an object to copy values into
T destination = Activator.CreateInstance<T>();
// get source and destination property infos for all public instance
PropertyInfo[] sourcePropInfos = source.GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance);
PropertyInfo[] destinationPropInfos = source.GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance);
foreach (PropertyInfo sourcePropInfo in sourcePropInfos)
{
if (Attribute.GetCustomAttribute(sourcePropInfo, typeof(ColumnAttribute), false) != null)
{
PropertyInfo destPropInfo = destinationPropInfos.Where(pi => pi.Name == sourcePropInfo.Name).First();
destPropInfo.SetValue(destination, sourcePropInfo.GetValue(source, null), null);
}
}
return destination;
}
}