1 / 63

Microsoft Visual Basic 2005: Reloaded Second Edition

Microsoft Visual Basic 2005: Reloaded Second Edition. Chapter 1 An Introduction to Visual Basic 2005. Programmers. Programs : instructions given to computers Programmers : people who write programs Applications programmers : write and maintain programs to handle specific tasks

aeaves
Download Presentation

Microsoft Visual Basic 2005: Reloaded Second Edition

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Microsoft Visual Basic 2005: Reloaded Second Edition Chapter 1 An Introduction to Visual Basic 2005

  2. Programmers • Programs: instructions given to computers • Programmers: people who write programs • Applications programmers: write and maintain programs to handle specific tasks • Systems programmers: write and maintain programs that run the system, such as operating systems, device drivers, utilities Microsoft Visual Basic 2005: Reloaded, Second Edition

  3. OOP Terminology • OOP: Object-oriented programming • OOD: Object-oriented design • Object: • Represents a real-world entity • Attributes (or properties): describe the object • Methods: behaviors or operations the object can perform • Class: blueprint used to create an object • Instance: an object created from a class Microsoft Visual Basic 2005: Reloaded, Second Edition

  4. Visual Studio 2005 • Integrated Development Environment (IDE): • Contains all the tools and features needed to create, run, and test programs • Includes an editor and compiler • Visual Studio 2005: • IDE used to create Windows or Web-based programs • Includes Visual Basic 2005, Visual C++ 2005, Visual C# 2005, and Visual J# 2005 Microsoft Visual Basic 2005: Reloaded, Second Edition

  5. Visual Studio 2005 (continued) • Application: program or suite of programs • Windows-based application: • Has a Windows user interface • Runs on a desktop computer • User interface: what the user sees and interacts with when using an application Microsoft Visual Basic 2005: Reloaded, Second Edition

  6. Visual Studio 2005 (continued) • Web-based application: • Has a Web user interface • Runs on a server • Use a computer browser to access it • Microsoft .NET Framework 2.0: a platform on which you create applications • .NET languages: the programming languages included in Visual Studio • .NET applications: applications created with Visual Studio Microsoft Visual Basic 2005: Reloaded, Second Edition

  7. Visual Studio 2005 (continued) • .NET Framework class library: • Contains an extensive set of classes for use in .NET applications • Reduces development time by providing reusable code • Provides consistency among applications Microsoft Visual Basic 2005: Reloaded, Second Edition

  8. The Common Language Runtime • .NET language compilers translate program statements into a Microsoft Intermediate Language, also called Intermediate Language (IL) • Common Language Runtime (CLR): • Manages the execution of IL instructions • Just-in-time (JIT) compiler: translates IL into machine code • CLR allows compiled IL to be reused, regardless of which .NET language was used to create it Microsoft Visual Basic 2005: Reloaded, Second Edition

  9. The Common Language Runtime (continued) Microsoft Visual Basic 2005: Reloaded, Second Edition

  10. Solutions, Projects, and Files • Solution: a container that stores projects and files for an entire application • Project: a container that stores files associated with a specific part of the solution Microsoft Visual Basic 2005: Reloaded, Second Edition

  11. Starting Microsoft Visual Studio 2005 Microsoft Visual Basic 2005: Reloaded, Second Edition

  12. Starting Microsoft Visual Studio 2005 (continued) Microsoft Visual Basic 2005: Reloaded, Second Edition

  13. Starting Microsoft Visual Studio 2005 (continued) Microsoft Visual Basic 2005: Reloaded, Second Edition

  14. Creating a Visual Basic 2005 Windows-Based Application Microsoft Visual Basic 2005: Reloaded, Second Edition

  15. Creating a Visual Basic 2005 Windows-Based Application (continued) Microsoft Visual Basic 2005: Reloaded, Second Edition

  16. Creating a Visual Basic 2005 Windows-Based Application (continued) Microsoft Visual Basic 2005: Reloaded, Second Edition

  17. Managing the Windows in the IDE Microsoft Visual Basic 2005: Reloaded, Second Edition

  18. The Windows Form Designer Window • Windows Form Designer window: • Allows you to create (design) the GUI • Graphical User Interface (GUI): what the user sees and interacts with when using the application • Windows Form object (or form): • Adds other objects such as buttons and textboxes to create the GUI • Instance of the Windows Form class • Automatically instantiated when you create an application Microsoft Visual Basic 2005: Reloaded, Second Edition

  19. The Windows Form Designer Window (continued) Microsoft Visual Basic 2005: Reloaded, Second Edition

  20. The Solution Explorer Window • Solution Explorer window: • Displays a list of projects contained in this solution • Displays the items contained in each project Microsoft Visual Basic 2005: Reloaded, Second Edition

  21. The Solution Explorer Window (continued) • Project Designer window: • Open by right-clicking on project folder • Allows you to set options for the project • Contains 9 tabs with groups of options Microsoft Visual Basic 2005: Reloaded, Second Edition

  22. The Solution Explorer Window (continued) Microsoft Visual Basic 2005: Reloaded, Second Edition

  23. The Solution Explorer Window (continued) Microsoft Visual Basic 2005: Reloaded, Second Edition

  24. The Solution Explorer Window (continued) • Source file: a file containing program instructions • Code: program instructions • Form file: a file containing code associated with a Windows form object Microsoft Visual Basic 2005: Reloaded, Second Edition

  25. The Properties Window • Properties window: displays properties of selected object • Default property values are assigned when an object is created Microsoft Visual Basic 2005: Reloaded, Second Edition

  26. The Properties Window (continued) Microsoft Visual Basic 2005: Reloaded, Second Edition

  27. The Properties Window (continued) • Properties window includes an Object box and a Properties list • Object box: • Located immediately below Properties window title bar • Contains the name of the selected object • Properties list: • Left column displays names of properties • Settings box: Right column containing the current value of each property Microsoft Visual Basic 2005: Reloaded, Second Edition

  28. Properties of a Windows Form Object Microsoft Visual Basic 2005: Reloaded, Second Edition

  29. Properties of a Windows Form Object (continued) • Class definition: block of code that defines the attributes and behaviors of an object • Namespace: defines a group of related classes • Dot member access operator: the period that separates words in an object’s name • Name property: used to refer to an object in code • Hungarian notation: naming convention using a 3 or more character prefix to represent the object type • Camel casing: lowercase prefix, uppercase first letter of each word Microsoft Visual Basic 2005: Reloaded, Second Edition

  30. Properties of a Windows Form Object (continued) • Pascal case: • First letter and first letter of each word is uppercase • First part of name is object’s purpose • Second part of name is object’s class • Textproperty: controls the caption displayed on form’s title bar • StartPositionproperty: determines the form’s position on the screen when application starts • Splash screen: first image to appear when application starts Microsoft Visual Basic 2005: Reloaded, Second Edition

  31. Properties of a Windows Form Object (continued) Microsoft Visual Basic 2005: Reloaded, Second Edition

  32. The Toolbox Window • Toolbox: • Contains tools used to create an application • Each tool represents a class from which to instantiate objects • Controls: • Objects displayed on a form • Are represented as icons in the toolbox • Can be locked in place on the form • Control names use camel casing Microsoft Visual Basic 2005: Reloaded, Second Edition

  33. The Toolbox Window (continued) Microsoft Visual Basic 2005: Reloaded, Second Edition

  34. The Toolbox Window (continued) Microsoft Visual Basic 2005: Reloaded, Second Edition

  35. The Label Tool • Label tool: represents a label control • Label control: • Displays text that user cannot edit • Used as “prompts” to explain controls or display output Microsoft Visual Basic 2005: Reloaded, Second Edition

  36. The Label Tool (continued) Microsoft Visual Basic 2005: Reloaded, Second Edition

  37. The Label Tool (continued) Microsoft Visual Basic 2005: Reloaded, Second Edition

  38. The Button Tool • Button tool: represents a button control • Button control: • Performs an immediate action when clicked Microsoft Visual Basic 2005: Reloaded, Second Edition

  39. The Button Tool (continued) Microsoft Visual Basic 2005: Reloaded, Second Edition

  40. The Button Tool (continued) Microsoft Visual Basic 2005: Reloaded, Second Edition

  41. The Code Editor Window • Events: user actions while program is running • Event procedure: set of instructions to be executed when an event occurs • Code editor: used to enter programming code Microsoft Visual Basic 2005: Reloaded, Second Edition

  42. The Code Editor Window (continued) Microsoft Visual Basic 2005: Reloaded, Second Edition

  43. The Code Editor Window (continued) Microsoft Visual Basic 2005: Reloaded, Second Edition

  44. The Code Editor Window (continued) Microsoft Visual Basic 2005: Reloaded, Second Edition

  45. The Code Editor Window (continued) • Keyword: has special meaning in a programming language • Sub procedure: block of code that performs a task • Event’s Procedure header: • Begins with keyword Private • Procedure name includes object name and event name • Handles clause indicates for which objects’ events this code will execute Microsoft Visual Basic 2005: Reloaded, Second Edition

  46. The Me.Close Method • Me.Close method: closes the current form • Method: predefined VB procedure that can be invoked (called) • Sequential processing: each line is executed in sequence Microsoft Visual Basic 2005: Reloaded, Second Edition

  47. The Me.Close Method (continued) Microsoft Visual Basic 2005: Reloaded, Second Edition

  48. Saving a Solution Microsoft Visual Basic 2005: Reloaded, Second Edition

  49. Starting and Ending an Application • Startup form: the form to be displayed when the application starts Microsoft Visual Basic 2005: Reloaded, Second Edition

  50. Starting and Ending an Application (continued) Microsoft Visual Basic 2005: Reloaded, Second Edition

More Related