I assume you have to set XamMap's WindowRect and WorldRect. Try the following code:

In XAML:

<igMap:XamMap  x:Name="xamMap" >
 <igMap:MapNavigationPane x:Name="nav" Margin="260, 180, 10, 10" igControls:XamDock.Edge="InsideRight" />
 <igMap:XamMap.Layers>
  <igMap:MapLayer>
   <igMap:MapLayer.Reader>
    <igMap:ShapeFileReader Uri="ShapeFiles/school/schooldistricts">
     <igMap:ShapeFileReader.CoordinateSystem>
      <igMap:CoordinateSystem UnitType="FT" FalseEasting="1312335.958" FalseNorthing="0.0" >
       <igMap:CoordinateSystem.Projection>
        <igMap:LambertConformalConic EllipsoidType="GRS1980"
                CentralMeridian="-120.5" StandardParallelNorth="43.0"
                StandardParallelSouth="45.5"  LatitudeOrigin="41.75"  />
       </igMap:CoordinateSystem.Projection>
      </igMap:CoordinateSystem>
     </igMap:ShapeFileReader.CoordinateSystem>
    </igMap:ShapeFileReader>
   </igMap:MapLayer.Reader>
  </igMap:MapLayer>

 </igMap:XamMap.Layers>
</igMap:XamMap>

In Code behind:

private void Page_Loaded(object sender, RoutedEventArgs e)
{
 InitImageryService();
 InitMapCoordinates();
}

private void InitImageryService()
{           
 ImageryMetadataRequest mapImgRequest = new ImageryMetadataRequest();

 mapImgRequest.Credentials = new Credentials();
 mapImgRequest.Credentials.ApplicationId = "BING_MAP_KEY";

 mapImgRequest.Style = MapStyle.Road;           
 
 var imgService = new ImageryServiceClient();
 imgService.GetImageryMetadataCompleted += imgService_GetImageryMetadataCompleted;
 imgService.GetImageryMetadataAsync(mapImgRequest);
}

private void imgService_GetImageryMetadataCompleted(object sender, VEImageryServiceReference.GetImageryMetadataCompletedEventArgs e)
{
 // set map tile source for the XamMap control
 xamMap.MapTileSource = new Infragistics.Controls.Maps.BingMapsTileSource()
 {               
  TilePath = e.Result.Results[0].ImageUri,
  SubDomains = new ObservableCollection<string>(e.Result.Results[0].ImageUriSubdomains)
 };
}

private void InitMapCoordinates()
{
 // define world dimensions
 Point worldTopLeft = new Point(-180, 90);
 Point worldBottomRight = new Point(180, -90);

 // Convert Geodetic to Cartesian coordinates
 Point winTopLeft = this.xamMap.MapProjection.ProjectToMap(worldTopLeft);
 Point winBottomRight = this.xamMap.MapProjection.ProjectToMap(worldBottomRight);
 // Create Rect structure the map control's WindowRect and WorldRect
 Rect winRect = new Rect()
 {
  X = Math.Min(winTopLeft.X, winBottomRight.X),
  Y = Math.Min(winTopLeft.Y, winBottomRight.Y),
  Width = Math.Abs(winTopLeft.X - winBottomRight.X),
  Height = Math.Abs(winTopLeft.Y - winBottomRight.Y)
 };
 this.xamMap.IsAutoWorldRect = false;
 this.xamMap.WindowZoomMaximum = 80;

 // Change the map control's WindowRect and WorldRect
 this.xamMap.WindowRect = this.xamMap.WorldRect = winRect;
}

Regards,

Ivan Kotev

This works really great!! Thanks!!

Next question: I am having trouble getting it to zoom in. Is there something that I am missing?