Fields update on Table maintenance generator screen

HI All..

I have a custom table with five fields. I did table maintenance generator on it. It has Screen 1 as overview screen and scree 2 as single screen.

Now of the five fields two fields are user name and date. When i enter data on the other three fields and save it on the second screen - iam able to update the two fields for username and date and display on the screen two itself.

But if iam not saving the data on the screen 2 and going back to screen 1 and then save it - iam not able to update the user name and date and also to display the username and date on the screen.

Any suggestions are helpful..

Thanks and will reward helpful answers.