public void Remove()
 {
     _layerProperty = new ImageryLayerProperties
     {
         sourceType = ImagerySourceType.None
     };
 }
 public ImageryLayer(ImageryLayerProperties properties)
 {
     _layerProperty = properties;
 }
 public void Initialize(LayerProperties properties)
 {
     _layerProperty = (ImageryLayerProperties)properties;
     Initialize();
 }