unfortunately it is not worked for me. I am using :vaadin-grid-pro-flow-2.0.2.jar And tried the below code :
Ok, that explains it. You are not using Vaadin 8, but something newer, like Vaadin 14.
In Vaadin 14 Grid and Grid Pro, there is no longer similar Renderer concept we had in Vaadin 7 and 8.
There is new concept of TemplateRenderer, and also generic ComponentRenderer.
So you need to refactor your code to use either one.