Seeking insight regarding which class/control/object is optimal to write XML
into and append with additional XML while the object is in memory? The XML
must then be saved to disk and sorting by node(s) would be a real nice gift
though not necessarily required.

Hillbilly wrote:
XmlDocument class should be helpfull.
Its in the System.Xml namespace.
DH

If you are using .NET 3.5 consider XDocument (System.Xml.Linq)
Node creation is IMO easier and the coding of a sort will be no problem
using a Linq query.

You can use the StringBuilder to hold the XML in memory and append more XML.


System.Text.StringBuilder sb = new System.Text.StringBuilder();
    sb.Append("<?xml version=\"1.0\"?>\n");
    sb.Append("<?mso-application progid=\"Excel.Sheet\"?>\n");
    sb.Append(
      "<Workbook xmlns=\"urn:schemas-microsoft-com:office:spreadsheet\" ");
    sb.Append("xmlns:o=\"urn:schemas-microsoft-com:office:office\" ");
    sb.Append("xmlns:x=\"urn:schemas-microsoft-com:office:excel\" ");
    sb.Append("xmlns:ss=\"urn:schemas-microsoft-com:office:spreadsheet\" ");
    sb.Append(
      "<DocumentProperties
xmlns=\"urn:schemas-microsoft-com:office:office\">");
    sb.Append("</DocumentProperties>");
    sb.Append(
      "<ExcelWorkbook xmlns=\"urn:schemas-microsoft-com:office:excel\">\n");
    sb.Append("<ProtectStructure>False</ProtectStructure>\n");
    sb.Append("<ProtectWindows>False</ProtectWindows>\n");
    sb.Append("</ExcelWorkbook>\n");
    return sb.ToString();

You can then load the sb to a XMLdocument if you like.

xmldocument doc = new xmldocment();

doc.LoadXML(sb.ToString());

You should be able to figure out how to save it from there.

A sort on tags maybe asking too much.

Insightful replies received here (TU) led me to discover these documents in
Aaron Skonnard's XML Best Practices Series...

// Choosing an XML API
http://support.softartisans.com/kbview.aspx?ID=673

// Reading XML Documents
http://support.softartisans.com/kbview.aspx?ID=674


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