System.Xml.XmlSubtreeReader.InitReadContentAsType C# (CSharp) Méthode

        void InitReadContentAsType( string methodName ) {
            switch ( state ) {
                case State.Initial:
                case State.EndOfFile:
                case State.Closed:
                case State.Error:
                    break;

                case State.Interactive:
                    return;

                case State.PopNamespaceScope:
                case State.ClearNsAttributes:
                    // no need to clean ns attributes or pop scope because the reader when ReadContentAs is called
                    // - on Element errors
                    // - on Attribute does not move
                    // - on EndElement does not move
                    // and that's all where State.ClearNsAttributes or State.PopNamespacScope can be set
                    return;

                case State.ReadElementContentAsBase64:
                case State.ReadElementContentAsBinHex:
                case State.ReadContentAsBase64:
                case State.ReadContentAsBinHex:
                    throw new InvalidOperationException( Res.GetString( Res.Xml_MixingReadValueChunkWithBinary ) );

                default:
                    Debug.Assert( false );
                    break;
            }
            throw CreateReadContentAsException( methodName );
        }