XML writing

[BobsAfro]

I have written a web service that builds an XML document and returns it as a string. But at the moment it builds the XML to a file (using System.Xml.XmlTextWriter) then opens the file (using XmlDocument.load(c:\... etc)). Is there a way to write XML directly to a string? As writing to a file can cause problems with file access and so on if there is any errors.