diff --git a/demo/ColumnsUpdate.bbj b/demo/ColumnsUpdate.bbj
index bf66b039..57947976 100644
--- a/demo/ColumnsUpdate.bbj
+++ b/demo/ColumnsUpdate.bbj
@@ -79,6 +79,7 @@ onCDNumberUpdate:
     grid!.updateColumns()
     grid!.setFitToGrid()
     grid!.addStyle(".my-special-color", "{""background-color"": ""black"" , ""color"": ""#d8d8d8""}")
+    grid!.redrawRows()
 return
 
 rem /**