Beginning Web Development, Silverlight, and ASP.NET AJAX

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62 CHAPTER 3 ■ WEB FORMS WITH ASP.NET Figure 3-6. Using the Page.Controls collection Accessing the Page Head If you look closely at Figure 3-6, you’ll see that the HTMLHead of the page is listed as one of the controls on this page. You can see the reason for this if you look back at Listing 3-11, where the tag has a runat="server" attribute set. This enables you to set HTML page attributes from the server dynamically so that you can, for example, set the attributes of the HTML header from within your code. For example, the page title can be set quite simply. (Note that this technique is identical to what you saw for accessing the ASP.NET HTML control properties with the add/subtract application.) First, make sure that the tag has an ID, like this: Untitled Page
CHAPTER 3 ■ WEB FORMS WITH ASP.NET 63 Now you can access your HTML header in code. Here’s a simple example of some code running in the Page_Load event that sets the title of the page: theHead.Title = "Dynamically Created Title!"; You could, for example, interface this with a membership API to create a dynamic title that welcomes the user by name. Figure 3-7 shows the page with the new, dynamically created title. Figure 3-7. Using the dynamically created title Also, if you look closely at the list containing the controls, you can see that the header ID has been set to theHead in Figure 3-7.
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The EXPERT’s VOIce ® in .NET Beg
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Beginning Web Development, Silverli
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Contents About the Author . . . . .
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■CONTENTS ix ■CHAPTER 5 ASP.NET
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■CONTENTS xi ■CHAPTER 11 Ajax A
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■CONTENTS xiii ■CHAPTER 15 Enha
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About the Author ■LAURENCE MORONE
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Introduction This book is aimed at
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PART 1 Building Web Applications
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4 CHAPTER 1 ■ INTRODUCTION TO WEB
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10 CHAPTER 2 ■ BASICS OF WEB DEVE
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112 CHAPTER 5 ■ ASP.NET WEB SERVI
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CHAPTER 6 Deploying Your Web Site I
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CHAPTER 6 ■ DEPLOYING YOUR WEB SI
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CHAPTER 7 .NET 3.0: Windows Communi
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CHAPTER 7 ■ .NET 3.0: WINDOWS COM
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CHAPTER 8 .NET 3.0: Windows Present
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CHAPTER 8 ■ .NET 3.0: WINDOWS PRE
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CHAPTER 9 .NET 3.0: Windows Workflo
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CHAPTER 9 ■ .NET 3.0: WINDOWS WOR
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234 CHAPTER 10 ■ .NET 3.0: PROGRA
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CHAPTER 11 Ajax Applications and Em
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CHAPTER 11 ■ AJAX APPLICATIONS AN
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CHAPTER 12 AJAX Extensions for ASP.
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CHAPTER 12 ■ AJAX EXTENSIONS FOR
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CHAPTER 13 Ajax Scripts and Service
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CHAPTER 13 ■ AJAX SCRIPTS AND SER
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332 CHAPTER 14 ■ JAVASCRIPT PROGR
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CHAPTER 15 Enhancing the Web Experi
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CHAPTER 15 ■ ENHANCING THE WEB EX
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376 CHAPTER 16 ■ PROGRAMMING SILV
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416 ■INDEX applications. See also
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418 ■INDEX copying web sites, 25
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420 ■INDEX ■H H path language c
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