/// <exception cref="System.Exception"></exception>
public virtual void ConcUpdateSameObject(IExtObjectContainer oc, int seq)
{
IQuery query = oc.Query();
query.Descend("_s").Constrain(testString + Count / 2);
IObjectSet result = query.Execute();
Assert.AreEqual(1, result.Count);
SimpleObject o = (SimpleObject)result.Next();
o.SetI(Count + seq);
oc.Store(o);
}