Hello, <BR><BR>Almost done with these blasted TreeViews! Anyway, I&#039;ve got everything working correctly, but if a user clicks on the link to access a treeview repeatedly I get the following exception:<BR><BR>Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. <BR><BR>Exception Details: System.IO.IOException: The process cannot access the file "E:InetPubwwwroot..." because it is being used by another process.<BR><BR>This error occurs when the XmlTextWriter attempts to write to/over the XML src file. The only thing that happens on the resulting page is the TreeView databind, so I can&#039;t figure out what process could be hanging me up. I&#039;m certain I&#039;m closing all objects and connections. <BR><BR>Thanks,<BR><BR>])ry