Web Forms :: Get Week Day Name From Date In TextBox

I have one problem to display date for a week in textbox.

let say:

textbox1=date    ----> select one date ,

if tuesday is select  example:11/3/2012

then ..

date will appear in textbox in column tuesday(here)

_______________________________________________________________

monday      tuesday     wednesday   thursday     friday     saturday    sunday   

here        11/3/2012          here             here         here         here         here

               11/3/2012

_______________________________________________________________

*here=textbox

then

date before tuesday and after tuesday  also appear in textbox for a week ...