Microsoft & .NET ASP Data to Web in Five Minutes with Visual Web Developer 2005

Data to Web in Five Minutes with Visual Web Developer 2005

OK, so I’m cheating a bit; that five minute figure doesn’t include the time
that it will take you to install Visual Web Developer 2005 (I’ll just call it
VWD from here on out). But Microsoft has done a superb job of making data-backed
Web applications easy with VWD. Before I get to building a Web page, though,
let’s take a brief look at the tool and where to get it.

Introducing Visual Web Developer 2005

Visual Web Developer 2005 Express Edition is part of a new wave of “Express”
products that Microsoft is introducing for the Visual Studio 2005 product cycle.
The Express products are aimed at beginning developers, hobbyists, and others
who won’t care to buy the full product. VWD aims at the particular market
segment of Web developers; its goal is to provide easy to use tools for building
ASP.NET 2.0 applications.

Final pricing hasn’t yet been announced, but it should be in the tens of
dollars. Meanwhile, you can download the beta version for free from the Visual Web Developer beta
page
. There are actually three different choices for getting a copy:

  • Click the Download Now link to launch a Web-based installation package. This
    option requires you to stay connected while the installation is proceeding.
  • Click the Manual Installation link to download the entire setup to your own
    computer, where you can run it without being connected.
  • Order a CD-ROM for delivery if you can’t manage to download a large product
    (with the SQL Server Express bits and the .NET Framework 2.0 you’re looking at
    about 100 MB here).

Getting Started

When you first launch VWD, you’ll be faced with an IDE that looks very much
like Visual Studio .NET 2003. Oh, sure, some of the styling and shading is
different, but the basic windows and layout are the same. To get started, select
New Web Site from the File menu. You’ll discover that you can create a variety
of types of sites (ASP.NET sites, empty sites, Web services, and so on) and
choose from Visual Basic, Visual C#, and Visual J# for a coding language. You’ll
also see that (in a departure from previous versions of Visual Studio) you can
put the Web site anywhere you like on your hard drive. That’s because VWD comes
with its own Web server, and doesn’t require you to use IIS. I chose an ASP.NET
site with Visual Basic to get going.

The new Web site opens with a single page, Default.aspx. Switch the page to
design view (it defaults to HTML view) and open the Data tab in the toolbox.
Then drag a SqlDataSource component from the toolbox and drop it anywhere on the
form. Figure 1 shows the result of this operation.

To the right of the control is one of the innovations of the new IDE: each
control you drop gets its own menu of common tasks, which flies out from the
little arrow. Click on Configure Data Source to launch a wizard that does just
that, which walks you through these steps:

  • Select or create a data connection. I created a new connection to a copy of
    the Northwind sample database on a SQL Server on my network.
  • Save the connection string to the application’s configuration file. This is
    optional, but it makes it easier to change connections when you switch from a
    test server to a production server.
  • Configure a SELECT statement. I chose to use a few of the columns from the
    Customers table.
  • Test the data source
    • Displaying the Data

      At this point, the form is connected to the data, but doesn’t yet display any
      of it. That’s easily remedied. Drag a GridView control from the toolbox to the
      form. The common tasks menu of the GridView lets you choose a data source;
      choose the SqlDataSource that you just created. While you’re in the common tasks
      menu, check the Enable Paging and Enable Sorting boxes. You might also like to
      select the Auto Format link and choose a color scheme for the GridView.

      Now press Ctrl+F5 to launch the application. Figure 2 shows the result. The
      column headers are clickable to sort the data. The numbers at the bottom of the
      grid allow moving from page to page. And you got all of this functionality
      without writing any code!

      While the application is running, check out the task bar. You’ll find an icon
      for Visual Web Developer Web Server, which runs your project on an arbitrary
      random port. You can use this built-in Web server for all of your development
      and testing and then deploy seamlessly to an IIS server when you’re ready to
      roll the project out.

      Next steps

      VWD offers you quite a bit of flexibility in both getting the data to the Web
      page and in the way that you display it. On the presentation side, the Data tab
      of the toolbox includes five different controls:

      • GridView, which you’ve already see (this control replaces the DataGrid from
        earlier versions of Visual Studio .NET).
      • DataList, which drops all of the records on the page in one long list.
      • DetailsView, which provides a tabular, pageable view of the data.
      • FormView, shown in Figure 3, which also gives you a view oriented towards
        one record at a time.
      • Repeater, which lets you create your own templates to display the data any
        way that you’d like.

      Data in a FormView control

      The toolbox also contains multiple controls to let you grab different types
      of data and make them available to Web pages:

      • SqlDataSource, for SQL Server data.
      • AccessDataSource, for Microsoft Access data.
      • ObjectDataSource, which can use a business object as the source of
        data.
      • DataSetDataSource, for data that’s already been pulled into a DataSet.
      • XmlDataSource, for data in XML files.
      • SiteMapDataSource, which is specialized for building navigation
        controls.

      To investigate further, I suggest you dig into the ObjectDataSource. Many Web
      developers consider it poor form to link the data directly to the Web pages that
      present it in any but the smallest and most trivial of applications. What the
      ObjectDataSource lets you do is configure your Web page to draw its data from
      business objects, so you get a true data layer in between the database and the
      application. In this beta, you still have to write a fair amount of code to
      build those business objects, so I can’t get them done in the five minutes
      allotted. Perhaps in the final release, Microsoft will manage to get all of the
      plumbing in place for an even more compelling release!

      Meanwhile, this first beta is pretty darned amazing. Remember, though, that
      it is beta software. Don’t put it on a machine that you can’t afford to
      seriously damage, and don’t try to use it for anything that you plan to actually
      release. Testing with VMware or Virtual PC is the ideal way to go if you don’t
      have a spare computer hanging around for the testing. Have fun!

      Mike Gunderloy is the author of over 20 books and numerous articles on
      development topics, and the lead developer for Larkware. Check out his latest book, Coder to Developer from Sybex. When
      he’s not writing code, Mike putters in the garden on his farm in eastern
      Washington state.

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