Chapter 10 pg. 341 Try It Out

oIse7enIo · December 30th, 2016, 12:26 PM

Hello, I keep getting this error when I try to run this UpdatePanelDemo Page:

http://tinypic.com/r/11w5z7p/9

Here is my code:

Code:

<%@ Page Title="UpdatePanel Demo" Language="C#" MasterPageFile="~/MasterPages/Frontend.master" AutoEventWireup="true" CodeFile="UpdatePanel.aspx.cs" Inherits="Demos_UpdatePanel" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="cpMainContent" runat="Server">
  <asp:UpdatePanel runat="server">
    <ContentTemplate>
      <asp:Label ID="Label1" runat="server"></asp:Label>
      <asp:Button ID="Button1" runat="server" Text="Button" />
    </ContentTemplate>
  </asp:UpdatePanel>
</asp:Content>

Can't figure out what's going on.

Imar · January 6th, 2017, 01:05 PM

You're missing the ScriptManager control, as the error message suggests. Did you skip step 9 maybe?

Imar