Table maintenance generator- disabling and enabling row wise

I have to make column of every row disabled if that particular field is initial by using table maintenance generator. I have one table(ztxxr) and in that table records are present. So how could i achieve this.

suppose:

i have 10 fields and 5 records:

   c1 c1 c3 c4 c5 c6 c7 c8 c9 c10

1 a   b   c    d        f   g    u   h  

2

3

4

5

if in first record any of the cell is initial then have to make it disabled.

I have tried using events in TMG but coud not achieve this

Please help me on this.