c# itextsharp create barcode Building the User Interface in Word

Printer Quick Response Code in Word Building the User Interface

Building the User Interface
Denso QR Bar Code Creation In None
Using Barcode encoder for Microsoft Word Control to generate, create QR-Code image in Word applications.
www.OnBarcode.com
Make PDF-417 2d Barcode In None
Using Barcode printer for Office Word Control to generate, create PDF-417 2d barcode image in Word applications.
www.OnBarcode.com
The Currency Converter application includes three pages: one for the main application screen that performs currency conversions; one to prompt the user to upgrade to the full application license the application is running under a trial license; and one for additional options, such as determining how much money you actually lose on a conversion. In this section, you will create each of these pages. Follow these steps to create a Currency Converter project and add application pages: 1. 2. Launch Visual Studio 2010 Express for Windows Phone, and create a new Windows Phone Application project. Name it CurrencyConversion. Make sure MainPage.xaml is open in Design view. For MainPage.xaml, the end goal is to have a screen with a layout similar to the one shown in Figure 11 4. The screen looks a little busy, so we will go over each screen element, one by one, to understand the type of the element and element s name. Element names and types will be referred to from code and, hence, are important to get right. Table 11 1 summarizes field names and types. A portion of the XAML code that creates the Amount to Convert text box, two list boxes, and the corresponding captions is shown here:
GS1-128 Creator In None
Using Barcode creation for Word Control to generate, create UCC-128 image in Office Word applications.
www.OnBarcode.com
QR Code 2d Barcode Creation In None
Using Barcode encoder for Word Control to generate, create QR Code image in Microsoft Word applications.
www.OnBarcode.com
Figure 11 4. Currency Converter MainPage.xaml page layout
Make GS1 - 13 In None
Using Barcode drawer for Microsoft Word Control to generate, create EAN13 image in Office Word applications.
www.OnBarcode.com
UCC - 12 Drawer In None
Using Barcode creation for Microsoft Word Control to generate, create UPC-A Supplement 5 image in Microsoft Word applications.
www.OnBarcode.com
CHAPTER 11 CREATING TRIAL APPLICATIONS
Generate Barcode In None
Using Barcode generator for Microsoft Word Control to generate, create Barcode image in Word applications.
www.OnBarcode.com
USD-4 Printer In None
Using Barcode encoder for Microsoft Word Control to generate, create Monarch image in Word applications.
www.OnBarcode.com
<TextBlock Height="30" HorizontalAlignment="Left" Margin="24,14,0,0" Name="textBlock1" Text="Amount to Convert" VerticalAlignment="Top" /> <TextBox Height="68" HorizontalAlignment="Left" Margin="6,36,0,0" Name="txtAmountToConvert" Text="" VerticalAlignment="Top" Width="446" /> <ListBox Height="93" HorizontalAlignment="Left" Margin="24,137,0,0" Name="lstConvertFrom" VerticalAlignment="Top" Width="220" /> <TextBlock Height="30" HorizontalAlignment="Left" Margin="24,101,0,0" Name="textBlock2" Text="Convert from (currency)" VerticalAlignment="Top" Width="220" /> <TextBlock Height="28" HorizontalAlignment="Left" Margin="262,101,0,0" Name="textBlock3" Text="Convert to (currency)" VerticalAlignment="Top" Width="190" /> <ListBox Height="93" HorizontalAlignment="Left" Margin="263,137,0,0" Name="lstConvertTo" VerticalAlignment="Top" Width="205" /> Table 11 1. User Controls for MainPage.xaml
Drawing QR Code JIS X 0510 In C#.NET
Using Barcode generator for Visual Studio .NET Control to generate, create QR Code 2d barcode image in VS .NET applications.
www.OnBarcode.com
Quick Response Code Scanner In Visual Basic .NET
Using Barcode scanner for Visual Studio .NET Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
Application Field
Scan Data Matrix ECC200 In VB.NET
Using Barcode decoder for .NET Control to read, scan read, scan image in VS .NET applications.
www.OnBarcode.com
Creating 1D Barcode In Java
Using Barcode creation for Java Control to generate, create 1D image in Java applications.
www.OnBarcode.com
Amount to Convert Convert from (currency) Convert to (currency) Status Total Converted Convert Button More Stuff Button
Make Barcode In .NET
Using Barcode generator for Reporting Service Control to generate, create Barcode image in Reporting Service applications.
www.OnBarcode.com
Barcode Generator In None
Using Barcode drawer for Software Control to generate, create Barcode image in Software applications.
www.OnBarcode.com
Field Name
Drawing Barcode In Objective-C
Using Barcode creator for iPhone Control to generate, create Barcode image in iPhone applications.
www.OnBarcode.com
Make QR Code JIS X 0510 In VB.NET
Using Barcode drawer for VS .NET Control to generate, create QR Code JIS X 0510 image in .NET applications.
www.OnBarcode.com
txtAmountToConvert lstConvertFrom lstConvertTo txtStatus txtTotalConverted btnConvert btnMoreOptions
Code 39 Printer In Objective-C
Using Barcode creation for iPad Control to generate, create Code 3/9 image in iPad applications.
www.OnBarcode.com
EAN / UCC - 13 Generator In Objective-C
Using Barcode maker for iPhone Control to generate, create EAN / UCC - 13 image in iPhone applications.
www.OnBarcode.com
Field Type
Code 39 Extended Recognizer In Visual Basic .NET
Using Barcode scanner for VS .NET Control to read, scan read, scan image in .NET framework applications.
www.OnBarcode.com
Recognize Barcode In Java
Using Barcode Control SDK for Java Control to generate, create, read, scan barcode image in Java applications.
www.OnBarcode.com
TextBox ListBox ListBox TextBlock TextBlock Button Button
Next, add the nag page, or the page that will try to get users to purchase the full version of our application if the user is executing our application under a trial license. 3. To do that, right-click the project name in Solution Explorer and select Add New Item Windows Phone Portrait Page. Name the page Upgrade.xaml and select OK. Bring up the design surface of the Upgrade.xaml page, and make it look like Figure 11 5.
The page consists of a message and two buttons. The message prompts the user to upgrade. One of the buttons enables the user to purchase a full license, and the other one simply returns the user to the main application screen. Ensure that the buttons are properly named by verifying their names with Table 11 2:
CHAPTER 11 CREATING TRIAL APPLICATIONS
Table 11 2: User Controls for Upgrade.xaml
Application Field
Yes, upgrade No, take me back
Field Name
btnUpgrade btnGoBack
Field Type
Button Button
Figure 11 5. The nag screen layout Finally, add the More Stuff page, or the page that will display features available only to paid users. Sadly, the users of our application will most likely feel cheated at the moment: our only feature available to them will be the calculation of the money they do not get as a result of using the currency conversion services. 5. To add the More Stuff page, right-click the project name in Solution Explorer and select Add New Item Windows Phone Portrait Page. Name the page MoreStuff.xaml and select OK. Bring up the design surface of the MoreStuff.xaml page, and make it look like Figure 11 6. Refer to Table 11 3 field names and types:
CHAPTER 11 CREATING TRIAL APPLICATIONS
Figure 11 6. The More Stuff screen layout with functionality available to full-license users only Table 11 3. User Controls for MoreStuff.xaml
Application Field
Exchange Rate Quoted Calculate Damage Back to Main Total damage
Field Name
txtExchangeRateQuoted btnCalculateDamage btnBackToMain txtDamageExplained
Field Type
TextBox Button Button TextBlock
With design layout complete, you are now ready to add code to the application. In the next section, you will add code feature-by-feature, starting with a reference to the web service that supplies current exchange rates.
CHAPTER 11 CREATING TRIAL APPLICATIONS
Connecting to a Web Service
To retrieve current currency exchange rates, you will be using a web service located at www.webservicex.net/CurrencyConvertor.asmx. While there are several ways to connect to a web service and retrieve data, we will be using the approach discussed 18, which draws on the new Microsoft Reactive Extensions, or Rx.NET. Using Rx.NET makes it easier to follow the flow of execution by the program, since it abstracts behind a solid Observer pattern the complexities of invoking of a web service asynchronously. Follow these steps to add a reference to the Currency Conversion service and to wrap the results returned by that service within Rx.NET. 1. With the CurrencyConversion project open, right-click Solution Explorer and select Add Service Reference. Paste the following URL into the Address field, as shown in Figure 11 7:
Copyright © OnBarcode.com . All rights reserved.