How to show status for gridview row

I have a gridview which displays around 50 rows. The user can select all 50 rows or select certain rows that they require to be processed.
I would like to display some form of status to the user of which row is being processed. So i used a progress bar but realised if i put the controls inside an updatePanel and there is some issue with processing that row then the error is not displayed. Removing the UpdatePanel resolves that problem but then i dont have any means to show the progress to the end user.
So im wondering what other options do i have where i could display the row being processed or at least inform the user that "something" is happening for all the rows/selected rows?
Thanks