How to write XML in a string?

[Bounce]

I do not have right to write on a disk. I want to create a \[code\]string\[/code\] which consist of \[code\]xml\[/code\] file. I do not want to give filename because I have no permissions. If I simply append \[code\]xml\[/code\] to \[code\]string\[/code\] is it working? Is there any better way to do it.\[code\]XmlTextWriter xmlWriter = new XmlTextWriter(fileName, Encoding.UTF8);\[/code\]