Vaadin 8: Grid - Fetch row values when button in the grid is clicked

Vaadin 6 / 7 / 8
1

Hello,

I have a Grid that has a button in one of the columns for every row, I want to fetch the entire row value when the button is clicked so that I can store it somewhere else than the bean from where the grid sources it’s data.

How can I fetch the row values when the button is clicked? And after it is clicked I want to “disable” the button.

Thanks

2

Here’s one example how to refresh a Grid row on button click:


See the full sample on vaadinfiddle.com

This kind of refreshing can be necessary if something modifies the underlying beans without dataprovider’s knowledge.

3

To be able to disable the button on click, you could replace the ButtonRenderer with a
ComponentRenderer
 with Buttons and in the ClickListener use the Button’s
API to disable
 the button.

Remember that when using a ComponentRenderer you should consider that using it might lead into performance problems.

4

It’s up to your imagination what you do in the ButtonRenderer’s RendererClickListener.click method. You can e.g. read the content of all the visible columns and create a new bean based on those:

Person clone = new Person();
clone.setFirstName(e.getItem().getFName());
clone.setLastName( e.getItem().getLName());

Service.doSomathing(clone);
5

Hi Jonni,

Thanks for your reply, I am not trying to refresh the row. Basically, when I click the button, I want to fetch the row values and store them in a new Bean - which is not related to the Grid in any way. Will the above solution that you have sent work for what I am trying to achieve?

Thanks

6

Perfect! Thanks a lot !