public static void ResetValueGenerators(this DbContext context)
{
IValueGeneratorCache cache = context.GetService <IValueGeneratorCache>();
foreach (IProperty keyProperty in context.Model.GetEntityTypes()
.Select(e => e.FindPrimaryKey().Properties[0])
.Where(p => p.ClrType == typeof(int) &&
p.ValueGenerated == ValueGenerated.OnAdd))
{
ResettableValueGenerator generator = (ResettableValueGenerator)cache.GetOrAdd(
keyProperty,
keyProperty.DeclaringEntityType,
(p, e) => new ResettableValueGenerator());
generator.Reset();
}
}
