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In this code, the compiler can see that value will always be 0; therefore, the loop will never execute and consequently, there is no need to compile the code inside the loop . This method could be compiled down to nothing . In fact, when JITting a method that calls OptimizedAway, the JITter will try to inline the OptimizedAway method s code . Since there is no code, the JITter will even remove the code that tries to call OptimizedAway . We love this feature of compilers . As developers, we get to write the code in the way that makes the most sense to us . The code should be easy to write, read, and maintain . Then compilers translate our intentions into machine-understandable code . We want our compilers to do the best job possible for us . When the C# compiler, JIT compiler, and CPU optimize our code, they guarantee us that the intention of the code is preserved . That is, from a single-threaded perspective, the method does what we want it to do, although it may not do it exactly the way we described in our source code . However, the intention might not be preserved from a multithreaded perspective . Here is an example where the optimizations make the program not work as expected:

Figure 2-4 shows a sample view of an IP address (131.107.16.200) as it is divided into network ID and host ID sections. In this example, the network ID portion (131.107) is indicated by the first two numbers of the IP address. The host ID portion (16.200) is indicated by the last two numbers of the IP address.

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I saved all three diagrams in the XML for Visio file format for drawings ( .vdx) . The XML schema definition (XSD) for Visio documents is published on MSDN in the Visio 2007 XML Reference at http://msdn.microsoft.com/en-us/library/ms426602.aspx . The filenames of the three diagrams are ProductER .vdx, ProductUML .vdx, and CustomerER .vdx . These files are available for download at http://www.insidetsql.com as part of the book s source code . I ll demonstrate how to import these files into XML column values in a table and manipulate them . To follow the demonstration, create the folder C:\InsideTSQL2008\VisioFiles and copy the .vdx files to that folder .

This code is similar to the code you saw earlier for this method. The only difference is, you create your custom annotation view rather than the built-in pin annotation view. This lets you display custom annotations when the map asks for them. Figure 17.6 shows what the map looks like with custom annotations.

Each of these controls inherits from the System.Web.UI.Control class. This ensures that they work in a similar manner as other ASP.NET web controls. The sections that follow cover each of these controls in detail.

In this exercise, you create an ASP.NET website and a custom HTTP handler to return images based on user requests.

Example A-45. One solution to Exercise 15-4 (continued)

Confidential Created by: BOOK SQL> btitle off SQL> btitle btitle OFF and is the following 66 characters: col 20 'Confidential' tab 8 'Created by: ' SQL.USER SQL> ttitle off SQL> The output in Listing 11-30 shows the effects of the TTITLE and BTITLE commands. Note that we use two predefined variables: SQL.PNO for the page number and SQL.USER for the current username. The TTITLE and BTITLE commands have several additional features. SQL*Plus also supports the REPHEADER and REPFOOTER commands, which allow you to add headers and footers at the report level, as opposed to the page level. See SQL*Plus User s Guide and Reference for more information about these commands.

NOTE: The following procedure is required by the Web Services Designer It can be modified using the Web Services Designer. Do not modify it using the code editor. <System.Diagnostics.DebuggerStepThrough()> _ Private Sub InitializeComponent() components = New System.ComponentModel.Container() End Sub

SELECT C.customerid, C.city, A.orderid FROM dbo.Customers AS C CROSS APPLY (SELECT TOP (2) O.orderid, O.customerid FROM dbo.Orders AS O WHERE O.customerid = C.customerid ORDER BY orderid DESC) AS A;

Not all key pairs are kept private. An open source project may want to give a component a strong name just so that it can have a globally unique name, while enabling anyone to build his own version. In these cases the full key pair is made available along with the source code, in which case the strong name brings no assurances as to the integrity of the code. But it still offers identity it enables you to refer to the library by a distinct name, which can be useful in itself.

W8 =INDEX(rD1.FromList,rD1.FromSel,1)&" " &INDEX(rD1.ToList,rD1.ToSel,1)&" / " &INDEX(rD1.SharesList,rD1.SharesSel,1)

K9:V9 K11:V11 =OFFSET(rP1.Node,K$2,3) =OFFSET(rP1.Node,K$2,$E11)

The design of the Strategy pattern is encapsulated in the UML diagram in Figure 7-2. Within a given Context, an appropriate strategy is chosen from an available family of strategies. The algorithm in the strategy is then followed through to a conclusion.

A field is a data member that holds an instance of a value type or a reference to a reference type . Table 7-1 shows the modifiers that can be applied to a field .

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