public QuadKey(int x, int y, int zoomLevel)
 {
     this = new QuadKey();
     this.ZoomLevel = zoomLevel;
     this.X = x;
     this.Y = y;
 }
 public QuadKey(string quadKey)
 {
     int num;
     int num2;
     int num3;
     this = new QuadKey();
     QuadKeyToQuadPixel(quadKey, out num, out num2, out num3);
     this.ZoomLevel = num3;
     this.X = num;
     this.Y = num2;
 }