How to hide a div from code (c#)

Question

I have a div element on my page that I wish to show/hide based on a session value in my code-behind. How can I do this?

Answer 1

work with you apply runat="server" in your div section...

On your button click event:

 protected void btnSubmit_Click(object sender, EventArgs e)
    {
      hideid.Visible = false;
    }