vb.net code 39 generator source C01620245.fm Page 8 Wednesday, June 9, 2004 5:22 PM in Visual Studio .NET

Generator Code128 in Visual Studio .NET C01620245.fm Page 8 Wednesday, June 9, 2004 5:22 PM

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Part I
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Creating a Sample Web Site
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Let s create a sample Web site using Visual Studio 2005. You first create a new Web site by choosing File | New and choosing Web Site. The dialog box that appears prompts you for the type of site you want to create. You ll notice a couple of similar-looking options ASP.NET Web site and ASP.NET Internet site, as shown in Figure 1-5.
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Figure 1-5 The options available to create a new Web site with Visual Studio 2005
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If you select the Web Site option, Visual Studio generates the minimum number of files for a Web site to build. Basically, it creates a default.aspx page and an empty Data directory. If you opt for an Internet site, an ASP.NET starter kit is used to give you a functional Web site with several standard features built in. Let s go for a Web site.
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Visual Studio 2005 creates a project file but doesn t use it to track all the files that form an application. The root directory of the site implicitly defines a Web project. To add a new file to the project, you just copy or create that file to the directory, and it is in the project. If it isn t, right-click in Solution Explorer and click Refresh Folder.
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To edit a Web page, you can choose from three views Design, Source, and Server Code. The Design view displays the HTML layout, lets you select and edit controls and static elements, and provides a graphical preview of the
C01620245.fm Page 9 Wednesday, June 9, 2004 5:22 PM
1 Creating an ASP.NET 2.0 Application
page. The Source view shows the HTML markup along with the inline code. The markup is syntax-colored and enriched by features such as IntelliSense, tips, and autocompletion. The Server Code view shows only the inline code, if any. The good news is that Visual Studio also applies syntax coloring to the inline code. You choose the template of the item to add to the site from the menu shown in Figure 1-6.
Figure 1-6 Item templates supported by Visual Studio 2005
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Note the two check boxes that appear at the bottom of the window. You can choose to keep the code of the page in a separate file (similar to the codebehind model of Visual Studio .NET 2003), and you can associate the current page with a master page. (Master pages are a cool new feature of ASP.NET 2.0 that we ll discuss thoroughly in the next chapter.) The code-behind schema touted by Visual Studio .NET 2003 has been revised and restructured. As a result, pages built with Visual Studio 2005 are not forced to use code separation (page separated into .aspx and .cs files). Code separation is fully supported but is now optional. Let s add some HTML markup to make it a Hello, World page. At a minimum, we need a text box to take the message and a button to send it to the world. The following HTML code renders the page shown in Figure 1-7:
<% @Page language="C# %> <script runat="server"> void Send_Click(object sender, EventArgs e) { MsgSent.Text = Msg.Text; } </script>
C01620245.fm Page 10 Wednesday, June 9, 2004 5:22 PM
Part I ASP.NET Essentials
<html> <head runat="server"> <title>Hello, World</title> </head> <body> <form runat="server id="MainForm"> <h1>Send a message to the world</h1> <asp:textbox runat="server id="Msg text="Hello, ASP.NET 2.0 /> <asp:button runat="server id="Send text="Send onclick="Send_Click /> <hr /> <b>Last message sent: </b> <asp:label runat="server id="MsgSent Font-Italic="True /> <hr /> </form> </body> </html>
Figure 1-7 The sample page used to take and display a welcome message
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Note As mentioned, you can open existing Web sites using the FTP protocol and then create and edit files. You must have access to the FTP server and read and write permissions for a particular FTP directory. The directory must already exist because Visual Studio 2005 cannot create a new Web site via FTP.
Designing Web Forms
Filling a Web Forms page is easy, too. You drag and drop controls from the toolbox onto the form, move elements around, and configure their properties. If you need to, you can switch to the Source view and manually type the HTML markup the way you want it to be. A pleasant surprise for many developers is that you can drag and drop controls from the toolbox directly into the Source
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