System.Xml.Serialization.XmlSerializationWriter.WriteEndElement C# (CSharp) Method

        protected void WriteEndElement(object o)
        {
            _w.WriteEndElement();

            if (o != null && _objectsInUse != null)
            {
#if DEBUG
                    // use exception in the place of Debug.Assert to avoid throwing asserts from a server process such as aspnet_ewp.exe
                    if (!objectsInUse.ContainsKey(o)) throw new InvalidOperationException(SR.Format(SR.XmlInternalErrorDetails, "missing stack object of type " + o.GetType().FullName));
#endif

                _objectsInUse.Remove(o);
            }
        }