void GeometryService_IntersectCompleted(object sender, GraphicsEventArgs e)
{
intersectGraphicsLayer.ClearGraphics();
foreach (Graphic g in e.Results)
{
SimpleFillSymbol symbol = new SimpleFillSymbol()
{
Fill = new System.Windows.Media.SolidColorBrush(
System.Windows.Media.Color.FromArgb(255, (byte)random.Next(0, 255), (byte)random.Next(0, 255),
(byte)random.Next(0, 255))),
BorderBrush = new System.Windows.Media.SolidColorBrush(System.Windows.Media.Colors.Black),
BorderThickness = 1
};
g.Symbol = symbol;
intersectGraphicsLayer.Graphics.Add(g);
}
}