barcode label printing in vb.net Figure 14-1. Stand-alone page navigation application and an XBAP application in Font

Creation Data Matrix 2d barcode in Font Figure 14-1. Stand-alone page navigation application and an XBAP application

Figure 14-1. Stand-alone page navigation application and an XBAP application
ECC200 Creator In None
Using Barcode printer for Font Control to generate, create Data Matrix 2d barcode image in Font applications.
www.OnBarcode.com
Code-39 Generator In None
Using Barcode maker for Font Control to generate, create Code 3/9 image in Font applications.
www.OnBarcode.com
CHAPTER 14 PAGE NAVIGATION PROGRAMS
Barcode Generation In None
Using Barcode generation for Font Control to generate, create Barcode image in Font applications.
www.OnBarcode.com
Make UPC A In None
Using Barcode maker for Font Control to generate, create UPC-A Supplement 5 image in Font applications.
www.OnBarcode.com
In standard Windows programs, Window is the class that contains most of the content you want to present. In navigation programs, the Page class contains the items your program displays. Rather than start by looking at the characteristics of the Page class, in this chapter you ll start by creating a simple stand-alone page navigation program that contains just a single page. You ll then expand it by adding pages and using the navigation features. After the example, you ll look more closely at the Page class and the other components of a navigation program. Figure 14-2 shows the output of the example program. Notice in the figure that the Forward and Back buttons on the navigation bar are both grayed since this program contains only a single page and therefore hasn t navigated anywhere.
Encoding DataMatrix In None
Using Barcode creator for Font Control to generate, create Data Matrix ECC200 image in Font applications.
www.OnBarcode.com
Encode EAN13 In None
Using Barcode printer for Font Control to generate, create GTIN - 13 image in Font applications.
www.OnBarcode.com
Figure 14-2. A single-page stand-alone page navigation program To duplicate this program, create a new solution called SimpleApp in Visual Studio using the standard WPF Application template. Then modify the XAML and code-behind files as shown in Figure 14-3. Besides adding the StackPanel content, this involves making the following changes to the files: 1. 2. Change the visual tree root element from type Window to type Page, in both the XAML and code-behind files. Remove the Height and Width properties from the Page element, and change the Title attribute to the WindowTitle attribute.
QR Generator In None
Using Barcode creation for Font Control to generate, create QR Code JIS X 0510 image in Font applications.
www.OnBarcode.com
Generate Postnet 3 Of 5 In None
Using Barcode drawer for Font Control to generate, create USPS POSTNET Barcode image in Font applications.
www.OnBarcode.com
Figure 14-3. A simple stand-alone page navigation program with a single page When you compile and run the program, it looks like Figure 14-2.
DataMatrix Generator In Objective-C
Using Barcode drawer for iPhone Control to generate, create Data Matrix 2d barcode image in iPhone applications.
www.OnBarcode.com
Reading DataMatrix In Visual C#
Using Barcode scanner for Visual Studio .NET Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
CHAPTER 14 PAGE NAVIGATION PROGRAMS
QR-Code Creation In None
Using Barcode maker for Online Control to generate, create QR Code ISO/IEC18004 image in Online applications.
www.OnBarcode.com
Print EAN / UCC - 14 In Java
Using Barcode printer for Android Control to generate, create GS1-128 image in Android applications.
www.OnBarcode.com
A page navigation program with only a single page isn t very interesting, so let s add two more Pages and several HyperLink objects for navigation. A Hyperlink object is rendered like an HTML hyperlink and functions just like it. For a basic Hyperlink, you need to include at least two things: the hyperlink content to display and the URI to navigate to when the user clicks it. You can either place the content between the Hyperlink element s tags, as shown in the following markup, or assign it to the Content attribute. Set the NavigateUri property to the URI of the destination Page.
UCC - 12 Creator In Java
Using Barcode printer for Android Control to generate, create UPC-A Supplement 5 image in Android applications.
www.OnBarcode.com
Code 128 Code Set C Creation In Objective-C
Using Barcode generation for iPhone Control to generate, create USS Code 128 image in iPhone applications.
www.OnBarcode.com
<TextBlock> <Hyperlink NavigateUri="Page2.xaml">Page 2</Hyperlink> </TextBlock>
Draw Barcode In None
Using Barcode maker for Online Control to generate, create Barcode image in Online applications.
www.OnBarcode.com
Scan UPC Symbol In Java
Using Barcode scanner for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
Set the target URI.
Barcode Generation In Java
Using Barcode encoder for Java Control to generate, create Barcode image in Java applications.
www.OnBarcode.com
Decode USS-128 In C#
Using Barcode recognizer for .NET framework Control to read, scan read, scan image in Visual Studio .NET applications.
www.OnBarcode.com
Set the content.
Recognize UPC Symbol In None
Using Barcode reader for Software Control to read, scan read, scan image in Software applications.
www.OnBarcode.com
Denso QR Bar Code Generator In VS .NET
Using Barcode creator for ASP.NET Control to generate, create QR Code JIS X 0510 image in ASP.NET applications.
www.OnBarcode.com
Note The Hyperlink class isn t a control and can t be placed arbitrarily where controls can be placed. Instead,
it can be placed only in TextBlocks. The Hyperlink class is derived from the TextElement class, which I ll cover in 17.
To extend the program, do the following: 1. 2. 3. In Visual Studio, click the Project menu at the top, and select the Add Page menu item. In the Name text box, change Page1.xaml to Page2.xaml. Repeat the process to add a Page called Page3.xaml. Change the markup for the three XAML pages, adding TextBlocks and Hyperlinks to match the markup shown in Figure 14-4.
CHAPTER 14 PAGE NAVIGATION PROGRAMS
Figure 14-4 shows the changes to the XAML files. Notice the Hyperlinks in Window1 and Page2.
Figure 14-4. Markup with Hyperlinks added When you compile and run the program, you can use the Hyperlinks to move to Page 2 and Page 3, and then you can use the Forward and Back buttons to navigate between them. The screenshots in Figure 14-5 show the sequence of navigating from Page 1 to Page 3 by clicking the hyperlinks and then back to Page 2 using the Back button. Notice that you can build a fully navigable program using simple Pages and Hyperlinks.
Figure 14-5. Navigation between the pages
CHAPTER 14 PAGE NAVIGATION PROGRAMS
The Components of a Navigation Program
Now that you ve seen how to create a navigation program using Hyperlinks, let s take a closer look at the components that make up a navigation program. At the highest level, these include the Page objects and a navigation host, as shown in Figure 14-6. The Page contains the content displayed to the user. The Page class is similar to the Window class but is a bit simpler. Page objects are designed to be used, or hosted, inside a navigation host. The navigation host implements and coordinates the navigation features. It has two main subcomponents. The NavigationService takes care of locating and loading the next page to display the target page. The journal keeps track of the navigation history for the Forward and Back buttons.
Figure 14-6. The components of the page navigation architecture Figure 14-7 shows the visual relationship between the navigation host and the Page object; the Page is inside the navigation host. The navigation host in this case is an object of the NavigationWindow class.
Copyright © OnBarcode.com . All rights reserved.