how to accept or reject user account in gridview using button or link buttion in asp.net

Registeration :

Store staff data along with statusColumn in your table ,statuscolumn may be 0's or 1's ,if its 0 means accept,if its 1 means Reject .Initially set 1 for all staff's

Admin Panel :
Use Gridview to show all registered Staff's Information along with button to update the Statuscolumn as 0 or 1 ,whatever it is while show your Gridview use RowDatabound event to show the current status of the Staff whether its active or Inactive

if(Status==0)
{
button.text="Accept";
}
else
{
button.text="Reject";
}

if admin Click Accept text button then update your Status column as 1
if admin click Reject text button then update your

status column as 0<br />

That't it.