ArcGIS Pro to change the raster data sources

var rasterLayer = MapView.Active.Map.GetLayersAsFlattenedList().OfType<RasterLayer>().FirstOrDefault();
QueuedTask.Run(async () => {
        using (Geodatabase geodatabase = new Geodatabase(new FileGeodatabaseConnectionPath(new Uri(@"\\Path-to-Data\raster.gdb"))))
        {
          using (Dataset dataset = geodatabase.OpenDataset<RasterDataset>("elevation"))
          {
            rasterLayer.ReplaceDataSource(dataset);

            // Check if the Stretch colorizer can be applied to the raster layer.
            if (rasterLayer.GetApplicableColorizers().Contains(RasterColorizerType.StretchColorizer))
            {
              // Create a new Stretch Colorizer Definition using the default constructor.
              StretchColorizerDefinition stretchColorizerDef_default = new StretchColorizerDefinition();
              // Create a new Stretch colorizer using the colorizer definition created above.
              CIMRasterStretchColorizer newStretchColorizer_default =
                await rasterLayer.CreateColorizerAsync(stretchColorizerDef_default) as CIMRasterStretchColorizer;
              // Set the new colorizer on the raster layer.
              rasterLayer.SetColorizer(newStretchColorizer_default);
            }
          }       
        }
      });