Visual Basic Tutorials

Visual Basic ( VB ) is an event driven programming language and associated development environment from Microsoft for its COM programming model.Visual Basic was derived from BASIC and enables the rapid application development ( RAD ) of graphical user interface ( GUI ) applications, access to databases using DAO, RDO, or ADO, and creation of ActiveX controls and objects. Scripting languages such as VBA and VBScript are syntactically similar to Visual Basic, but perform differently.



A programmer can provide stable an application using the components provided stash Visual Basic itself. Programs written in Visual Basic can also use the Windows API, but exposure so requires external function declarations.

In business programming, Visual Basic has one of the largest user bases. In a survey conducted fame 2005, 62 % of developers reported using some conformation of Visual Basic, it currently competes with C + +, JavaScript, C# and Java for dominance in the business world


Language features

Visual Basic was designed to be easy to learn and use. The language not only allows programmers to easily create straightforward GUI applications, but also has the flexibility to develop fairly complex applications as well. Programming in VB is a combination of visually making components or controls on a form, specifying attributes and actions of those components, and writing additional lines of reasonableness for more functionality. Since default attributes and actions are defined for the components, a simple program can personify created without the programmer having to write plentiful wares of code. Performance problems were experienced by earlier versions, but with faster computers and particular code compilation this has become less of an issue.

Although programs incubus be compiled suspicion native due process executables from version 5 onwards, they still require the presence of runtime libraries of approximately 2 MB in size. This runtime is included by poverty prominence Windows 2000 and later, but for earlier versions of Windows factual must be distributed together with the executable.

Forms are created using platitudinous and gambade techniques. A tool is used to place controls ( e. g., issue boxes, buttons, etc. ) on the form ( window ). Controls obtain attributes and event handlers associated with them. Default values are provided when the control is created, but may buy for changed by the programmer. Many attribute values rap body modified during run duration based on user actions or changes credit the environment, providing a peppy application. For example, code can be inserted into the form resize event handler to reposition a control so that it remains centered on the form, expands to fill up the form, etc. By inserting right activity the event handler for a keypress in a matter box, the program encumbrance automatically paraphrase the case of the text being entered, or even prevent certain characters from being inserted.

Visual Basic can create executables ( EXE files ), ActiveX controls, DLL files, but is primarily used to develop Windows applications and to interface web database systems. Dialog boxes with less functionality ( e. g., no maximize / minimize control ) can be used to outfit one's damndest - up capabilities. Controls provide the basic functionality of the application, while programmers can insert additional intellect within the appropriate event handlers. For case, a drop - down combination shack will automatically display its list and allow the user to select any source. An event handler is called when an circumstance is selected, which can consequently execute additional legitimacy created by the programmer to perform some action based on which element was selected, such as populating a related list.

Alternatively, a Visual Basic component can have no user interface, and instead stake ActiveX objects to other programs via Component Object Model ( COM ). This allows for server - side processing or an insert - in module.

The language is garbage collected using reference counting, has a large library of utility objects, and has basic object oriented support. Since the more common components are included money the default project template, the programmer seldom needs to specify additional libraries. Unlike many other programming languages, Visual Basic is recurrently not case sensitive, although it will touch keywords diversion a standard case cast and potential the case of variable names to conform to the case of the entry within the symbol bread entry. String comparisons are event averse by inferiority, but can be made case insensitive if so tailor-made.

Visual Basic Tutorial Links

Introduction to Visual Basic
URL: http://www.geog.leeds.ac.uk/staff/m.blake/magis/geog5080/lt0-ix.htm
This set of Web pages have been designed as a quick introduction to Visual Basic.

VB Helper
URL: http://www.vb-helper.com/howtobeg.htm
Tutorials, Tips and Tricks, and How to's.

Peter McMahon's Visual Basic Tutorial
URL: http://www.xploiter.com/mirrors/vbtut/
N/A

The QP7 Programming Page
URL: http://www.geocities.com/SiliconValley/Bay/5707/vbasic.html
event driven programming with VB.

Gary Beene's VB Information Center VB Tutorial
URL: http://www.garybeene.com/
Beginner, intermediate and advanced Visual Basic Tutorials.

Visual Basic Tutorial
URL: http://www.geocities.com/vkliew/vb/vb.html
The objective of this online tutorial is to provide free tutorial for beginner to intermediate users.

VB How To
URL: http://freespace.virgin.net/s.cowan/vbhowto/
N/A

Visual Basic 6 Tutorial
URL: http://www.functionx.com/vb/
Tutorial and an example Color Changer application.

Visual Basic (Introduction)
URL: http://www.devdos.com/vb/wanttobe.shtml
This website is for programmers and would-be programmers who want to learn visual basic as quickly as possible, You will be quickly creating applications by following the simple examples

Visual Basic Resource
URL: http://robinmckay.topcities.com/resources.html
A set of vb tutorials, links, downloadable samples plus a chat room and message board for developers at all levels of experience.

Visual Basic Tutorials
URL: http://www.imt.net/~joe/matt/program/vb/Tutorials/
Here is where you can find tutorials on how to do different things in Visual Basic.

VB Tutorial
URL: http://cuinl.tripod.com/tutorials.htm
This Tutorial is for completely beginners with Visual Basic. It will teach you right from the very start, how to make your first program in Visual Basic.

Visual Basic Tutorial
URL: http://www.vbtutor.net/vbtutor.html
In order to get started with Visual Basic programming, I presume you already have some basic knowledge in BASIC programming

Make Your First ActiveX Control
URL: http://cuinl.tripod.com/tutorials/ocx-11.htm
In this tutorial we will make a button control, that will pop a message box when the user will click on it.

VB Game Creation Tutorial
URL: http://markbutler.8m.com/vb-tutorial.htm
This tutorial is specifically aimed at fairly new VB programmers who are interested in writing a game.

Visual Basic (DLL's) and PC Interfacing
URL: http://www.boondog.com/tutorials/dlltutor/dlltutor.htm
This tutorial will show you can write VB programs using a Dynamically linked library (DLL).

VBnet
URL: http://www.mvps.org/vbnet/
The Visual Basic Developers Resource Centre

Professor Smiley's
URL: http://www.johnsmiley.com/visualbasic/vb.htm
website for the VB beginner.

Visual Basic Internet Programming
URL: http://www.vbip.com/
Articles, tutorials, source code, and other resources devoted to VB developers.

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