March 2008
Intermediate to advanced
982 pages
22h 43m
English
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8.2. Binding Data to a Web Forms Control
Problem
You want to bind multiple columns in a result set to an ASP.NET control.
Solution
Set the control's advanced properties before calling DataBind().
Follow these steps:
Create a C# ASP.NET web application named
BindWebFormSimpleControl.Add the following controls to the Default.aspx design surface:
ListBoxnameddepartmentListBoxTextBoxnamedselectedItemTextBox
The completed layout of the Web Form page Default.aspx is shown in Figure 8-3.
Figure 8-3. Layout for Default.aspx in BindWebFormSimpleControl solution
The code in Default.aspx in the project
BindWebFormSimpleControlis shown in Example 8-3.Example 8-3. File: Default.aspx for BindWebFormsSimpleControl solution
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="BindWebFormSimpleControl._Default" %> <!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:ListBox ID="departmentListBox" runat="server" onselectedindexchanged="departmentListBox_SelectedIndexChanged"> </asp:ListBox> <br /><br /> <asp:TextBox ID="selectedItemTextBox" runat="server"></asp:TextBox> </div> </form> </body> </html>Create the C# code-behind in Default.aspx.cs in the project ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.