Asp.Net gridview filled row with week date

I have a Gridview with three columns as

Date      Hour      Description

rows corresponding to them are in form of textbox.

Initially when page is loaded, Date column should be filled with date of currents week like this:

Date            Hour           Description

01-03-2015      -----            ----

02-03-2015      -----            -----

.

.

07-03-2015      -----              -----

The hour and description field should be filled by User. There is next button, when user clicks on that then the grid should refresh and the Date Column should be filled with Dates of Next week starting from Sunday. How this can be achieved?