How to show message in empty gridview coulmn

Question

Here i have a gridview, i have five coulmn Id, Name,Age,Address and Phone no.

 

when i bind data from database into gridview my datas are bind but i have some query 

for id 1 i have only two data means Ex- 

 

Id-1

Name-Sujit

Age-23

Address-null

Phone no-Null

 

I want to show a message in null coulmn as "No data" 

 

How to do this?? 

Any suggestion.