Developer .NET UPDATE—brought to you by the Windows & .NET Magazine Network
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DevConnections--Fall 2003 Dates Announced
DevConnections Tour--The Conference Comes to You
June 17, 2003--In this issue:
1. Developer .NET Perspectives
- Using the Compact Framework to Create a Simple Application
- Fight Spam and Viruses, and Secure Exchange 2003!
- Designing SQL Server Security for ASP.NET
- Featured Thread: The Framework's Impact on AD
- Security 2003 Road Show
5. New and Improved
- Prepare for Exam 70-300
6. Contact Us
- See this section for a list of ways to contact us.
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1. Developer .NET Perspectives
The Windows .NET Compact Framework consists of many new and exciting technologies. Microsoft refers to the Compact Framework as part of the Smart Device Extensions, which is a set of technologies geared toward smart devices.
In "Visual Studio .NET and Windows 2003 Features, Part 6" (http://www.winnetmag.com/articles/index.cfm?articleid=39019), Bill Sheldon introduced you to smart devices. Smart devices are growing in popularity and becoming part of the new business model emerging around the world. To be labeled "smart," a device must provide users with the ability to conduct business detached (wireless), away from the home or office. In addition, the device must allow a client to communicate to a remote server through wireless transmission.
One device that fits these criteria is the Pocket PC Phone, which combines the Pocket PC (also a smart device) with a phone. The Pocket PC Phone is extremely useful because you can place phone calls and use programs such as Microsoft Excel or Microsoft Word. In other words, you have one less gadget to carry around, which helps make the Pocket PC Phone one of the hottest tools for power users. So, if you can't live without your PDA and need to carry a phone around, the Pocket PC Phone is exactly what the tech doctor ordered.
For those of you who don't want to carry around what some might consider a Captain Kirk communicator on steroids, you're in luck. Microsoft has introduced the Smartphone. The Smartphone integrates PDA-type functionality into a phone-centric handset. Microsoft designed the Smartphone for one-handed operation, with the option to use keypad access. The Smartphone is optimized for voice and text communication, wireless access to Microsoft Outlook, and support for encrypted browsing of Internet information and services. For more information about the Smartphone, go to the Smartphone FAQs Web page at this URL:
You can easily create a simple application that's compatible with smart devices such as a Pocket PC Phone. For simplicity, this application uses the emulator that Visual Studio .NET 2003 includes as an option for a targeted device. The data source is a DataTable (i.e., a table of in-memory relational data) that you'll create. You'll bind to a ListBox control and a Label control. The application's code demonstrates basic data binding in the Compact Framework.
Open Visual Studio .NET 2003 and select New, Project on the File menu. In the Project Type pane on the left side of the New Project dialog box, select Visual C# Projects. In the Templates pane on the right side, click Smart Device Application. Enter a project name in the Name text box. Click OK to bring up the Smart Device Application Wizard.
The Smart Device Application Wizard has two options: "What platform do you want to target?" and "What project type do you want to create?" Accept the default selections of Pocket PC and Windows Application, respectively. Click OK to create your new project.
You're now in Visual Studio .NET's Design window, which looks almost identical to the Design window for a regular WinForm application, with the exception of the form's size. The Design window automatically sizes the form to fit the targeted device, which in this case, is a Pocket PC.
From the Toolbox, drag a Label control and a ListBox control onto the form. As you might have noticed, the Toolbox you use to create Pocket PC applications has many of the same controls as the Toolbox you use to create desktop applications.
Now you need to add code to populate the ListBox control with days of the week. Double-click the form area (don't click near either of the controls) to open the code view and automatically add a handler for the forms load event. Copy and paste the following code into the Form1_Load method:
DataTable dataTable = new DataTable();
DateTime start = DateTime.Parse("6/1/2003");
DateTime end = DateTime.Parse("6/7/2003");
string currentDay = "";
string\[\] dateArray = null;
listBox1.DataSource = dataTable;
listBox1.DisplayMember = "Day";
The last step before running the project is to look at the toolbars at the top of the Design window. You should see a drop-down box that contains a list of deployment devices. Make sure that Pocket PC 2002 Emulator (Default) is selected; if not, select that option.
Save your project and press F5 to run and deploy it. When you deploy a project to a device emulator, you need to be more patient than when you're deploying a local project because Visual Studio .NET 2003 needs to load the files into the emulator's virtual operating environment, then trigger the application to start.
With the form loaded in the emulator, you have a list box containing the days of the week. If you click any one of those days, the corresponding date is reflected in the label control by way of data binding.
That's all the steps you need to take to create a simple application for a smart device such as a Pocket PC or Pocket PC Phone. As you can see, using the Compact Framework to develop Pocket PC applications is similar to using the Windows .NET Framework to develop desktop applications.
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5. New and Improved
by Sue Cooper, email@example.com
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6. Contact Us
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