How not to show a particular field in the ALV report if it has now value.

Hi Experts,

Just want to know how can I not show a particular field in my ALV report if the field has no value.

Suppose ,I have total 60 fields in the alv

based upon the input in selection screen 45 fields have values other 15 fields are completely null, So this time i will show only 45 fields in my ALV.

similarly, based upon another input in the selection screen now 48 fields have data so 48 fields will be shown in the alv. rest 12 will not be shown

Ho to achieve that?

Regards