Problem with Try it Out List Controls

phage · August 14th, 2008, 07:36 PM

Hello! I must be missing something very simple, but for the life of me I can't get the try it out for List Controls in Chapter 4 (page 112) to return a label if multiple check boxes are checked.

I presume this has to be an issue with the code behind in my button:

public partial class Demos_ListControls : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
      Label1.Text = "In the DDL you selected " + DropDownList1.SelectedValue + "<br /";

      foreach (ListItem item in CheckBoxList1.Items)
      {
        if (item.Selected == true)
        {
          Label1.Text += "In the CBL you selected " + item.Value + "<br />";
        }
      }
    }
}

Imar · August 21st, 2008, 04:01 AM

Hi phage,

Sorry for my late reply; I was away for holidays.

Are you still having problems with this?

Cheers,

Imar

---------------------------------------
Imar Spaanjaars
http://Imar.Spaanjaars.Com
Everyone is unique, except for me.
Author of Beginning ASP.NET 3.5 : in C# and VB, ASP.NET 2.0 Instant Results and Dreamweaver MX 2004
Want to be my colleague? Then check out this post.

phage · August 21st, 2008, 03:15 PM

Yes.

Imar · August 21st, 2008, 03:24 PM

A bit shy to talk in public? ;)

Anyway, in that case, can you provide more information? Can you show the code for the markup and code behind sections of the page.

Cheers,

Imar

---------------------------------------
Imar Spaanjaars
http://Imar.Spaanjaars.Com
Everyone is unique, except for me.
Author of Beginning ASP.NET 3.5 : in C# and VB, ASP.NET 2.0 Instant Results and Dreamweaver MX 2004
Want to be my colleague? Then check out this post.

phage · September 11th, 2008, 04:30 PM

Will once I get home .. thanks for the reply and sorry for my delays.

phage · September 15th, 2008, 02:04 PM

Here's the code behind:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="ListControls.aspx.cs" Inherits="Demos_ListControls" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>

      <asp:DropDownList ID="DropDownList1" runat="server">
        <asp:ListItem>C#</asp:ListItem>
        <asp:ListItem>Visual Basic</asp:ListItem>
        <asp:ListItem>CSS</asp:ListItem>
      </asp:DropDownList>
      <asp:CheckBoxList ID="CheckBoxList1" runat="server">
        <asp:ListItem>C#</asp:ListItem>
        <asp:ListItem>Visual Basic</asp:ListItem>
        <asp:ListItem>CSS</asp:ListItem>
      </asp:CheckBoxList>

      <asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Button" />
      <br />
      <br />
      <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>

    </div>
    </form>
</body>
</html>

and you'll have to excuse my neophyte ignorance, but how do I share the markup? Screenshot?

Thank you for your assistance.

Imar · September 15th, 2008, 02:15 PM

What you just posted *is* the markup. To get at the code behind, press F7 while you're viewing the markup.

BTW, what exactly is the problem with this page? Do you get an error?

Imar

---------------------------------------
Imar Spaanjaars
http://Imar.Spaanjaars.Com
Everyone is unique, except for me.
Author of Beginning ASP.NET 3.5 : in C# and VB, ASP.NET 2.0 Instant Results and Dreamweaver MX 2004
Want to be my colleague? Then check out this post.