title: How to change the text of a textbox in asp.net from code-behind
body: <p>I'm trying to change the text of a textbox to increase by 1 after I click a button.</p>
  <p>When I use this,
  txtcounter.Text = txtcounter.Text + 1</p>
  <p>The value increase by 1 but, it changes back to its original value when i close and open the window again.
  What should I do to make it remain as the incremented value even after closing the window.</p>
  <p>The page language is vb</p>