System.Xml.XmlTextReaderImpl.NodeData.OnBufferInvalidated C# (CSharp) Method

            internal void OnBufferInvalidated() {
                if ( this.value == null ) {
                    Debug.Assert( valueStartPos != -1 );
                    Debug.Assert( chars != null );
                    this.value = new string( chars, valueStartPos, valueLength );
                }
                valueStartPos = -1;
            }