Radgrid Group Footer Dynamic calculation

Hello Cheah,

Generally, you will need to commit this value to the database and rebind the grid to update the calculated Aggragates. But I guess you will need an instant updating approach, similar to this scenario:
http://www.telerik.com/help/aspnet-ajax/grid-totals-with-numerictextbox.html

I am also sending a sample RadGrid web site sample to demonstrate a basic implementation of findElement and findControl methods which you can use to create a solution on client-side.

Hope this helps.

Regards,
Eyup
Telerik