Responding to the User s Answer in .NET framework
Responding to the User s Answer Bar Code Maker In .NET Using Barcode drawer for ASP.NET Control to generate, create bar code image in ASP.NET applications. <%@ Page Explicit= True Language= VB Debug= True %> <html> <body> <h1>So Ya Wanna Be A Gazillionaire</h1> The Question Was:<br> <b>Who was the second man to walk on the moon </b><br> <br> <% Dim Chosen As String Chosen = RequestQueryString( Answer ) Select Case Chosen Case Armstrong ResponseWrite( No, sorry! Neil Armstrong was actually ) ResponseWrite( the <i>first</i> man to walk on the ) ResponseWrite( moon ) Case Collins ResponseWrite( No, sorry! Michael Collins never ) ResponseWrite( actually made it to the moon s surface ) Case Aldrin ResponseWrite( Yes! You re right! Edwin Aldrin, Jr ) ResponseWrite( was the second man to walk on the moon ) Case Lightyear ResponseWrite( Nope You ve been watching way too ) ResponseWrite( many Disney movies ) End Select %> </body> </html> You retrieve the value from the URL line by using the QueryString property of the Request object Inside the parentheses after QueryString, you put the name that you ve given the information QueryString retrieves the value from the URL line and enables you to store the information in a string variable named Chosen QR Generation In C# Using Barcode printer for .NET Control to generate, create Denso QR Bar Code image in .NET applications. 9: Cool Stuff You Can Do with ASPNET 20 Objects
Drawing QR Code JIS X 0510 In .NET Using Barcode printer for Visual Studio .NET Control to generate, create QR-Code image in .NET framework applications. A Select Case statement then uses this value to decide how to respond A different response is provided for each possible answer ResponseWrite lines are used to put the text on the page (For information on Select Case, see 6) If you re interested in finding out more about the capabilities of the Request and Response objects, check out Bonus 4 on the CD There you can find: How to creating and retrieving browser cookies The RequestBrowser object that lets you find out what the user s browser is and what it s capable of A list of Request object properties that provide interesting information QR Code Creation In VB.NET Using Barcode encoder for Visual Studio .NET Control to generate, create Quick Response Code image in VS .NET applications. The Application and Session Objects: More Variable Scope Options
Making Barcode In .NET Using Barcode encoder for ASP.NET Control to generate, create barcode image in ASP.NET applications. The Application and Session objects work similarly, and you use them for similar tasks The Application object holds information about the ASPNET application The Session object keeps track of each person who accesses the application, individually Both objects are always available to your code you don t need to instantiate them Bar Code Creator In .NET Using Barcode printer for ASP.NET Control to generate, create bar code image in ASP.NET applications. The application versus the session
UPCA Creation In VB.NET Using Barcode creation for Visual Studio .NET Control to generate, create UPC-A Supplement 5 image in VS .NET applications. To explain the difference between the Application and Session objects, here s an example The application: Imagine your Web server has a cool real-estate ASPNET application that enables users to look at a variety of homes, pick one, and then calculate what the mortgage payment would be if they bought it Only one copy of this application exists on the Web server The application starts up the first time someone accesses a page for that application It doesn t end until the Web server is shut down That s the Application object s domain: the entire application for its entire life The session: The session is much different Suppose Sparky logs on to your real-estate application and begins looking through the homes Soon after, Judd pulls up a page and begins looking at houses, too Now, two different people are running Bar Code Drawer In C#.NET Using Barcode encoder for .NET framework Control to generate, create barcode image in .NET framework applications. Part IV: Classy Objects and Methodical Properties
Create UCC - 12 In Java Using Barcode creator for Java Control to generate, create UPC Symbol image in Java applications. the same application You don t have two different applications, but you do have two different sessions Each time a new person accesses your ASPNET application, a new session is created If Sparky gives up for the night and comes back tomorrow, he will be in a different session from the one he was in previously Creating USS-128 In Visual C#.NET Using Barcode printer for .NET framework Control to generate, create UCC-128 image in .NET framework applications. It s a bird It s a plane No, it s a super-global Session variable! USS Code 128 Recognizer In .NET Framework Using Barcode reader for VS .NET Control to read, scan read, scan image in Visual Studio .NET applications. After you ve experimented with ASPNET pages for a while, you ll find yourself wishing for a super-global variable a variable that keeps its value from one page to the next What you really want is a Session variable: Session( HouseCost ) = 175000 This code creates a new variable called HouseCost and assigns it the value 175000 If the variable already exists, this code just changes its value This variable is a session-level variable that your code can access from any page as long as the current user continues to use this application You access a Session variable in the same way: If Session( HouseCost ) > 150000 Then Unlike variables declared with Dim, Session variables don t have a specified data type They get their data type from the information you store in them Because you don t actually declare Session variables (you just begin using them), misspelling a variable name can confuse ASPNET into thinking you re trying to create another variable The compiler has no way of catching this kind of error with Session and Application variables, so be careful! Bar Code Reader In Java Using Barcode reader for Java Control to read, scan read, scan image in Java applications. Draw UCC.EAN - 128 In Visual Basic .NET Using Barcode encoder for Visual Studio .NET Control to generate, create EAN / UCC - 13 image in .NET framework applications. Printing Code39 In Visual Basic .NET Using Barcode generation for Visual Studio .NET Control to generate, create Code 3 of 9 image in .NET framework applications. DataMatrix Printer In .NET Using Barcode printer for .NET Control to generate, create DataMatrix image in VS .NET applications. Creating EAN13 In C#.NET Using Barcode generation for Visual Studio .NET Control to generate, create EAN-13 image in VS .NET applications. |
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