title: how to navigate from a wpf window to wpf page in C#(3.0)?
body: <p>Hey i'm stucked here from last 3 days and tried as hell of possibilities, I have wpf window called <code>'Mainwindow.xaml'</code> i want to navigate  a wpf page named <code>'addNewTech.xaml'</code> keeping <code>'Manwindow.xaml'</code> open in background please help me out..
   Thank you..</p>