System.Configuration.XmlUtilWriter.Write C# (CSharp) Méthode

        internal int Write(char ch) {
            _writer.Write(ch);
            if (_trackPosition) {
                UpdatePosition(ch);
            }

            return 1;
        }

        //
        // Copy or replace an element node.
        // If the element is an empty element, replace it with a formatted start element if either:
        //   * The contents of the start element string need updating.
        //   * The element needs to contain child elements.
        //
        // If the element is empty and is replaced with a start/end element pair, return a
        // end element string with whitespace formatting; otherwise return null.
        //
        internal string UpdateStartElement(XmlUtilWriter utilWriter, string updatedStartElement, bool needsChildren,
                                           int linePosition, int indent)
        {
            Debug.Assert(Reader.NodeType == XmlNodeType.Element, "_reader.NodeType == NodeType.Element");

            string endElement      = null;
            bool   needsEndElement = false;

            string elementName = Reader.Name;

            // If the element is empty, determine if a new end element is needed.
            if (Reader.IsEmptyElement)
            {
                if ((updatedStartElement == null) && needsChildren)
                {
                    updatedStartElement = RetrieveFullOpenElementTag();
                }

                needsEndElement = updatedStartElement != null;
            }

            if (updatedStartElement == null)
            {
                // If no changes to the start element are required, just copy it.
                CopyXmlNode(utilWriter);
            }
            else
            {
                // Format a new start element/end element pair
                string updatedEndElement = "</" + elementName + ">";
                string updatedElement    = updatedStartElement + updatedEndElement;
                string formattedElement  = FormatXmlElement(updatedElement, linePosition, indent, true);

                // Get the start and end element strings from the formatted element.
                int    iEndElement = formattedElement.LastIndexOf('\n') + 1;
                string startElement;
                if (needsEndElement)
                {
                    endElement = formattedElement.Substring(iEndElement);

                    // Include a newline in the start element as we are expanding an empty element.
                    startElement = formattedElement.Substring(0, iEndElement);
                }
                else
                {
                    // Omit the newline from the start element.
                    startElement = formattedElement.Substring(0, iEndElement - 2);
                }

                // Write the new start element.
                utilWriter.Write(startElement);

                // Skip over the existing start element.
                Reader.Read();
            }

            return(endElement);
        }