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There are arguments in favor of each of these approaches. Style 1 follows the indentation scheme used with blocks, so it s consistent with other approaches. Style 2 (either 2a or 2b) is also consistent, and the begin-end pair reduces the chance that you ll add statements after the if test and forget to add begin and end. This would be a particularly subtle error because the indentation would tell you that everything is OK, but the indentation wouldn t be interpreted the same way by the compiler. Style 3 s main advantage over Style 2 is that it s easier to type. Its advantage over Style 1 is that if it s copied to another place in the program, it s more likely to be copied correctly. Its disadvantage is that in a line-oriented debugger, the debugger treats the line as one line and the debugger doesn t show you whether it executes the statement after the if test. I ve used Style 1 and have been the victim of incorrect modification many times. I don t like the exception to the indentation strategy caused by Style 3, so I avoid it altogether. On a group project, I favor either variation of Style 2 for its consistency and safe modifiability. Regardless of the style you choose, use it consistently and use the same style for if tests and all loops.

The plan scans an index on the Employees table for the empid values. Each empid value drives a single seek within the covering index on Orders to return the requested most recent three orders for that employee. The interesting part here is that you don t get only the keys

Managing Network Security 11-87

We'll define a new client application in a file named NewClient.cs with the following statements:

That s all it takes to get a DataGrid ready to use bound data. Before you look at more of the properties, methods, and events associated with the control, do a simple data binding. You can bind to an RSS feed at http://feeds.reuters.com/reuters/oddlyEnoughNews format=xml. Next, add a button to the page, and wire up a Click event handler. Add the following code to this to set up a WebClient object to read from the URI, and add an event handler to manage the completion of the download:

From Figure 5-5 you can see that there are three helper methods that can be used to help the logging process. Those methods are summarized in Table 5-5.

<Server Include="Server4"> <Type>2003</Type> <Name>SVR04</Name> <AdminContact>Keith Tingle</AdminContact> <Env>DEV</Env> </Server> </ItemGroup>

File system A file-system based website stores all of the files for the website inside a directory of your choosing. When you debug the website, Visual Studio runs the lightweight ASP.NET development server that is included in Visual Studio. A file-system based site is great when you want to run and debug your website locally but do not want to run a local IIS web server (or cannot due to security restrictions on your network). FTP An FTP-based website is useful when you want to connect to your site via FTP to manage your files on a remote server. This option is typically used when your website is hosted on a remote computer and your access to the files and folders on that server is through FTP.

Sample of Visual Basic Code ... Inherits="System.Web.Mvc.ViewPage" Sample of C# Code ... Inherits="System.Web.Mvc.ViewPage<dynamic>"

SELECT empid, lvl FROM dbo.Managers(8, 2) AS M;

catch (ArgumentOutOfRangeException) { Console.WriteLine("Property set catch."); } setSomeProp(2); var getSomeProp = (Func<Int32>) Delegate.CreateDelegate(typeof(Func<Int32>), obj, pi.GetGetMethod()); Console.WriteLine("SomeProp: " + getSomeProp()); // Add and remove a delegate from the event EventInfo ei = obj.GetType().GetEvent("SomeEvent", c_bf); var addSomeEvent = (Action<EventHandler>) Delegate.CreateDelegate(typeof(Action<EventHandler>), obj, ei.GetAddMethod()); addSomeEvent(EventCallback); var removeSomeEvent = (Action<EventHandler>) Delegate.CreateDelegate(typeof(Action<EventHandler>), obj, ei.GetRemoveMethod()); removeSomeEvent(EventCallback);

To configure a client to receive its IP address information from a DHCP server, open the Internet Protocol (TCP/IP) Properties dialog box for the appropriate network con nection. By selecting the Obtain An IP Address Automatically option, you enable the client to obtain from the DHCP server an IP address, subnet mask, and all DHCP

Implementation Class DESCryptoServiceProvider RC2CryptoServiceProvider RijndaelManaged TripleDESCryptoServiceProvider

Now, when the task executing Sum completes, this task will start another task (also on some thread pool thread) that displays the result . The thread that executes the code above does not block waiting for either of these two tasks to complete; the thread is allowed to execute other code or, if it is a thread pool thread itself, it can return to the pool to perform other operations . Note that the task executing Sum could complete before ContinueWith is called . This will not be a problem because the ContinueWith method will see that the Sum task is complete and it will immediately start the task that displays the result . Also, note that ContinueWith returns a reference to a new Task object (which my code placed in the cwt variable) . Of course, you can invoke various members (like Wait, Result, or even ContinueWith) using this Task object, but usually you will ignore this Task object and will not save a reference to it in a variable . I should also mention that Task objects internally contain a collection of ContinueWith tasks . So you can actually call ContinueWith several times using a single Task object . When the task completes, all the ContinueWith tasks will be queued to the thread pool . In addition, when calling ContinueWith, you can specify a bitwise OR d set of TaskContinuationOptions . The first four flags None, PreferFairness, LongRunning,