private void RasterFunctionsComboBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
ArcGISImageServiceLayer imageLayer = MyMap.Layers["MyImageLayer"] as ArcGISImageServiceLayer;
var rasterFunction = (sender as ListPicker).SelectedItem as RasterFunctionInfo;
if (rasterFunction != null)
{
RenderingRule renderingRule = new RenderingRule() { RasterFunctionName = rasterFunction.Name };
imageLayer.RenderingRule = renderingRule;
imageLayer.Refresh();
}
}