void AttributeName_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            if (_ignoreAttributeChangedEvent)
            {
                return;
            }
            if (AttributeName.SelectedItem != null)
            {
                GraphicsLayer graphicsLayer = Layer as GraphicsLayer;
                if (graphicsLayer == null)
                {
                    return;
                }

                FieldInfo newAttributeField = AttributeName.SelectedItem as FieldInfo;
                graphicsLayer.ChangeAttributeForRenderer(newAttributeField);

                OnLayerRendererAttributeChanged(new LayerRendererAttributeChangedEventArgs()
                {
                    RendererAttributeField = newAttributeField,
                });
            }
        }