I've got the solution. Changing Map mode to MercatorMode did the trick. So I added a button in navigation bar to change the mode. Which is something like this
ChangeMapModeButton schematicButton = new ChangeMapModeButton(new MercatorMode(), "Schematic", "Schematic View");
navControl.HorizontalPanel.Children.Add(schematicButton);
I'm not sure if this is the best method or not, but it did the trick.