How to get original Entity from ChangeTracker

Question

Is there a way to get the original Entity itself from the ChangeTracker (rather than just the original values)?

If the State is Modified<

Answer 1

Override SaveChanges of DbContext or just access ChangeTracker from the context:

foreach (var entry in context.ChangeTracker.Entries())
{
    if (entry.State == System.Data.EntityState.Modified)
    {
        // use entry.OriginalValues
        Foo originalFoo = CreateWithValues(entry.OriginalValues);
    }
}

---

Here is a method which will create a new entity with the original values. Thus all entities should have a parameterless public constructor, you can simply construct an instance with new:

private T CreateWithValues(DbPropertyValues values)
    where T : new()
{
    T entity = new T();
    Type type = typeof(T);

    foreach (var name in values.PropertyNames)
    {
        var property = type.GetProperty(name);
        property.SetValue(entity, values.GetValue