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

        public override bool Read() {

            switch ( state ) {
                case State.Initial:
                    useCurNode = false;
                    state = State.Interactive;
                    ProcessNamespaces();
                    return true;

                case State.Interactive:
                    curNsAttr = -1;
                    useCurNode = false;
                    reader.MoveToElement();
                    Debug.Assert( reader.Depth >= initialDepth );
                    if ( reader.Depth == initialDepth ) {
                        if ( reader.NodeType == XmlNodeType.EndElement || 
                            ( reader.NodeType == XmlNodeType.Element && reader.IsEmptyElement ) ) {
                            state = State.EndOfFile;
                            SetEmptyNode();
                            return false;
                        }
                        Debug.Assert( reader.NodeType == XmlNodeType.Element && !reader.IsEmptyElement );
                    }
                    if ( reader.Read() ) {
                        ProcessNamespaces();
                        return true;
                    }
                    else {
                        SetEmptyNode();
                        return false;
                    }

                case State.EndOfFile:
                case State.Closed:
                    return false;

                case State.PopNamespaceScope:
                    nsManager.PopScope();
                    goto case State.ClearNsAttributes;

                case State.ClearNsAttributes:
                    nsAttrCount = 0;
                    state = State.Interactive;
                    goto case State.Interactive;

                case State.ReadElementContentAsBase64:
                case State.ReadElementContentAsBinHex:
                    if ( !FinishReadElementContentAsBinary() ) {
                        return false;
                    }
                    return Read();

                case State.ReadContentAsBase64:
                case State.ReadContentAsBinHex:
                    if ( !FinishReadContentAsBinary() ) {
                        return false;
                    }
                    return Read();

                default:
                    Debug.Assert( false );
                    return false;
            }
        }