Read local xml file through silverlight application

[sagar]

I have an silverlight application created. I want to read local xml file( for e.g "C:\temp\graphview.xml").

I have tried many things like

1) IsolatedStorageFile
2) Filestream
3) Download file to XAP using Webclient object.

But nothing is working. Do we have any other alternative to achive the same.