How to clear the DataContext cache on LinqToSql

When you get data using LinqToSql and change something in the object, you expect that calling get object again will invalidate the cache and return the new objects, but it doesn’t! LinqToSql will return a reference of the object, what means, it will return the same object you had before.

The code below force LinqToSql to get new object(s), not the one(s) it has in memory:

public Order Get(int id)
	var order = Context.Orders.SingleOrDefault(o => o.orderId == id);
	if (order != null)
		// invalidate cache
		Context.Refresh(System.Data.Linq.RefreshMode.OverwriteCurrentValues, order);

	return order;