private void OnRendererTemplateChanged()
		{
			isReady = true;
			cachedRenderer = (MarkerRenderer)RendererTemplate.LoadContent();
			RaiseChanged();
		}
 private void OnRendererTemplateChanged()
 {
     isReady        = true;
     cachedRenderer = (MarkerRenderer)RendererTemplate.LoadContent();
     RaiseChanged();
 }