Biztalk expression editor: lowercase – uppercase

agentNameStr is a System.String, so you can use any of the methods of this class.

[code:1:e9a627dc5e]agentNameStr =(System.String)xpath(myMesssage,myXpathStr)
agentNameStr = agentNameStr.ToUpper();[/code:1:e9a627dc5e]