How do I disable all controls in ASP.NET page?

Question

I have multiple dropdownlist in a page and would like to disable all if user selects a checkbox which reads disable all. So far I have this code and it is not working. Any s

Answer 1

Put a panel around the part of the page that you want disabled:

   < asp:Panel ID="pnlPage" runat="server" >
      ...
   < /asp:Panel >

Inside of Page_Load:

   If Not Me.Page.IsPostBack Then
      Me.pnlPage.Enabled = False
   End If

... or the C# equivalent. :o)