Making a particular cell editable on click of a button in module pool

Hi Experts,

I have a requirement where in i have created a module pool screen with subscreen containing table control.

This subscreen also has a button say B1.

Now when the user selects any line item from the table control and clicks on the button B1, I have to make one cell editable of that row.

for example, i have 3 fields namely A, B and C in the table control.

the table control has 10 lines in output. Now the user selects 5th row and clicks on button B1, then the C column of 5th row should be enabled.

I searched SDN but could not achieve this outcome.

Thanks for all your help.

Thanks & Regards,

Mohammadi