Access Command Line Arguments in VB.NET

This article shows how to access command line arguments in VB.NET.
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Recently, one user asked me how to access command line arguments in a VB.NET application. This how do I answers the same.

There are two common ways to read command line arguments in VB.NET. First, you can override the Main method with an array of strings, which are command line arguments. For example, the following code loops through the command line arguments and print them on the console.

Shared Sub Main(ByVal args As String())

    For Each arg As String In args

        Console.WriteLine(arg)

    Next arg 

    Console.ReadLine()

End Sub

I compile the above code and run the exe from the command line by passing following parameters:

CmdLineArgsImg1.gif

The output generated by the application looks like following:

CmdLineArgsImg2.gif

However, this is not only the way to read command line arguments. For example, what if you do not want to override the Main method? Or access the command line arguments from non-Main method of your application?

You can do so using the Environment class, which has a static method called GetCommandLineArgs, which returns an array of strings containing the arguments. The following code reads the command line arguments using Environment.GetCommandLineArgs method.

For Each arg As String In Environment.GetCommandLineArgs()

    Console.WriteLine(arg)

Next arg

Download and run the attached code for more details.

NOTE: THIS ARTICLE IS CONVERTED FROM C# TO VB.NET USING A CONVERSION TOOL. ORIGINAL ARTICLE CAN BE FOUND ON C# CORNER (http://www.c-sharpcorner.com/).

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