Hiding the column header text based on Prompt value

Hi ALL,

I am using crystal reports 2011 to creating report. Source for the report is Bex query.i want to hide one of the column header text based on prompt value

for example

prompt variable has values like A,B,C,D....ectc. if i pass "A" to the prompt value, the column header text should be displayed . and Other than "A" value column header text should not be displayed.

And Combination of "A" and other values also column header text should be displayed. And Combination of other than "A" and other values also column header text should not be displayed.

If any one Know process . Please help me out.

Thanks,

Ramana