Visual Basic [VB] Programming Tutorials

Visual Basic or VB Programming Tutorials And Articles
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Sometimes you might require to get a list of all the files in a folder, I was thinking how it can be implemented, the solution is to used the WSH interface and write a script in VBScript. Below is a sample script which will get the list of files on a directory, say c:\windows and save it to the...
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The ability to work with arrays is important in any programming language. VB.NET offers a simple way of grouping data into the array structures similarly to other languages. In this article, I will look at array declaration and usage. Purpose of the arrays Arrays are generally used for...
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Command buttons appear in almost every window of every Windows application. Command buttons determine when the user wants to do something such as exit the application or begin printing. In almost every case, you will perform these tasks to add a command button to an application: 1. Locate and...
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A variable is temporary storage space for numbers, text, and objects. Variables are constantly being created and destroyed and will not hold any values after your program has ended. If you want to save the values of variables or other data. Before allocating storage space for a variable, decide...
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You can also create functions in Visual Basic . They are just like Sub procedures except that they can return a value. You declare a function in much the same way as a Sub procedure, except that you use the Function keyword instead of Sub. Function Syntax Here's the formal syntax for...
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Introduction A subroutine is a container that holds a series of VBScript statements. Suppose you'd like to create a block of code that accomplishes some specific task. Maybe you need to accomplish that task in various places throughout your code. All you need to do is create, or declare, the...
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Developers often deal with various date calculations in applications. If you need a simple way to figure out how many days there are between two given dates, consider using VB.NET's TimeSpan object. Snippet A shows how you can use the TimeSpan object to obtain the elapsed amount of time...
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Visual Basic 6 provides a function called Environ through which you can get all the environment variables available. It takes string parameter which is name of the Environment variable and returns its value. The Valid Environment strings are ALLUSERSPROFILE APPDATA CI_HOLOS_CLI...
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Visual Basic allows a procedure to be repeated as many times as long as the processor could support. This is generally called looping . Visual Basic supports several versions of the Do statement. Do While loop The Do While loop is perhaps the most common looping statement that you'll put in...
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As more and more of your applications become distributed across the Internet, you'll no doubt want to build in a way to determine if the current user is actually connected to the Web. Fortunately, the Windows API offers a quick and easy way to do so with the InternetGetConnectedState() function. ...
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Useful Binary Conversion. This program convert Binary to text and text to binary. This program has one Form1 (Main.frm), textbox (Text1.Text), two button, (cmdConvtoBin and cmdConvtoText) and a module1 (Binary.bas) - Form Command Private Sub cmdConvtoBin_Click() MainText = Text1.Text...
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An important function of any program is the ability to work with a file system and manipulate files and directories. In this tip, we examine how to work with a file system using VB.NET. Lets see how to perform necessary functions with examples that utilise the existing classes, their methods, and...
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A constant is a meaningful name that takes the place of a number or string that does not change. Constants store values that, as the name implies, remain the same throughout the execution of an application. You can greatly improve the readability of your code and make it easier to maintain by using...
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By definition, an array is a list of variables, all with the same data type and name. When we work with a single item, we only need to use one variable. However, if we have a list of items which are of similar type to deal with, we need to declare an array of variables instead of using a variable...
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When you decide to use a variable, you are in fact asking the computer to use a certain amount of space to hold that variable. Since different variables will be used for different purposes, you should specify the kind of variable you intend to use, then the computer will figure out how much space...
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When a program makes use of the CD-ROM drive, it can be a nice touch to open and close the door under program control. The technique that allows you to do this relies on the mciSendString function from the Windows API. This function provides a general purpose interface to Windows' multimedia...
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Temp files are generally used for temporary storage and data manipulation. This is often necessary for storing user data, user preferences, session information, application cache, and many other types of information. In order to get the name of the file that you can use as a temp file in...
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Working with strings is a very important functionality in most applications. Your ability to effectively use the existing .NET functionality is vital for building solid applications. String.Compare method VB.NET's String.Compare method is handy when you need to compare two string...
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Been away for long time so just decided to make a little tutorial about file handling, I'll make it a clear as possible however if it's not clear then just pm me :) Background Little tutorial about file handling :) this is something that i did for my course work... In this tutorial i will...
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When a List Box control has the focus, it will automatically scroll to the first item that begins with the letter you type. It will not, however, automatically select items based on more than the first letter. For example, if you type go, you may want the control to select the first item that...
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