Disable/Enable field for editing in Table control

Hi GURUS,

I have a requirement, where in i need to display data to users ( i am getting this data from select query). I am using table control wizard to display data to users.

I have a specific requirement here

if the second letter in SKB1-BUSAB ='DT', 'DC', 'IT', 'IC' is T, i need to make a column on my screen suppose itab-col1 to be disabled.

I need to enable this column for editing only if the second letter is C.

Please let me know if any one has ideas about this .

Thanks in advance....