How to add some javascript to the widget?

Hi, how can i add some javascript to the widget? For example, to enable some calculations etc. when a field in the widget changes. And can a class value be added to the fields with an auto increment with each row like -. This could help in doing some javascript activities.

Thank you

Unfortunately it is not possible to add any JavaScript code in your widget or form. Though you can download form's full source code and then add JavaScript in form but it will not work for widgets. Please note that widgets load inside a separate iframe from different location.

I would suggest you to please explain your calculation requirement a bit more in detail and we will see if we can find any workaround without using configurable list widget. 

We will wait for your response.

And can a class value be added to the fields with an auto increment with each row like

Please accept my apology as I missed your second question. I would suggest you to please explain your class value requirement a bit more in detail, and we will take a look.