Gridview Databinding

ID (int)
UserName (varchar)
LastActivityDate (DateTime)
TimeCreated (DateTime)
TImeModified(DateTIme)

the above information is describing my database table fields..... I have designed a gridview which is described as bellow..
Name         Lastactivity

I want to display the lastactivity data like as bellow


UserName                       lasactivity
xyz                                       now
abc                     &n ...