Beginning Visual Basic 2012
Bryan Newsome
Language: English
Pages: 744
ISBN: 1118311817
Format: PDF / Kindle (mobi) / ePub
The ultimate beginner's guide to programming in Visual Basic 2012
Visual Basic, used to write Windows applications and web apps with ASP.NET, is an essential language for beginning programmers. Using the time-tested Wrox approach, this guide provides a step-by-step format that gets beginners up and running quickly and confidently. Essential topics covered include writing Windows applications, working with dialog boxes and menus, object oriented programming techniques, programming for graphics, using Visual Basic with ASP.NET for web apps, and dealing with data access and SQL Server.
- Visual Basic is a popular first language for beginning programmers; this Wrox beginner's guide covers all aspects of the newest version
- Uses a basic, step-by-step approach to help beginners learn quickly and easily
- Covers essential topics including flow control, data structure, writing Windows applications, error handling and debugging, objects and object oriented techniques, and class libraries
- Explains Windows Forms, graphics programming, accessing databases, web programming using Visual Basic with ASP.NET, data access, SQL Server, ADO.NET, and XML
Beginning Visual Basic 2012 is a must-have for programming newcomers who want to get a solid footing in one of the most important programming languages.
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end users with a minimum of hassle, securing the Windows platform for another few years. It also delivered several powerful tools for developers, such as Active Server Pages Extended (ASPX), web services, and Internet Information Server (IIS), and improved existing tools such as Visual Basic and SQL Server, all of which made it easier for developers to build advanced Internet applications. MSN 1.0 When the Internet started to become popular in the early 1990s, Microsoft was trying to push the
library is only half the equation. After you have written the code that interacts with the classes, you still need to run it. This poses a tricky problem: To remove the reliance on the platform is to remove the reliance on the processor. Whenever you write software for Windows, you are guaranteed that this code will run on an Intel chip. With .NET, Microsoft does not want to make this guarantee. It might be that the dominant chip in 2020 is a Transmeta chip or something never yet seen or heard
Single-precision floating-point numbers take up 32 bits of memory—in other words, half as much as a double-precision number and the same as an integer value. If you do defi ne an integer, whether you store 1, 3, 249, or 2,147,483,647, you’re always using exactly the same amount of memory: 32 bits. The size of the number has no bearing on the amount of memory required to store it. This might seem incredibly wasteful, but the computer relies on numbers of the same type taking the same amount of
MessageBox.Show("Is 'intNumber' less than 27? Yes!", "If Demo") Else MessageBox.Show("Is 'intNumber' less than 27? No!", "If Demo") End If Here’s something interesting, though. If you actually enter 27 into the text box and click the button, you’ll see a message box that tells you intNumber is not less than 27. The If statement said No, and it’s right; intNumber is actually equal to 27, and the cutoff point for this operator is anything up to but not including the value itself. You can get
Sort on that class. The Sort method takes a single parameter—namely, the array you want to sort. The method then does what its name suggests: sorts it for you into an order appropriate to the data type of the array elements. In this case, you are using a string array, so you get an alphanumeric sort. If you were to attempt to use this technique on an array containing integer or floating-point values, the array would be sorted in numeric order: 'Sort the array Array.Sort(strFriends) The capability
