How to Pass or Access Command-line Arguments in C#?

 

How to Pass or Access Command-line Arguments in C#?

Command-line arguments are parameters passed to a program when it is executed from the command line. In C#, accessing these arguments is a straightforward process. In this article, we will discuss how to pass and access command-line arguments in C#.

1. Passing Command-line Arguments in C#: To pass command-line arguments in C#, we need to follow these simple steps:

Step 1: Open the command prompt or terminal.

Step 2: Navigate to the directory where the program is located.

Step 3: Type the program name followed by the arguments separated by space.

For example, if we have a program named "MyProgram.exe" and we want to pass two arguments "arg1" and "arg2", we can do it like this:

MyProgram.exe arg1 arg2

2. Accessing Command-line Arguments in C#: Now that we have passed the command-line arguments to our program, we need to access them in our C# code. To do this, we can use the "args" parameter of the "Main" method.

The "Main" method is the entry point of our program. It is where the program execution starts. The "args" parameter is an array of strings that contains the command-line arguments passed to the program.

Here is an example code that demonstrates how to access command-line arguments in C#:

class Program

{

    static void Main(string[] args)

    {

        // Check if there are any command-line arguments

        if (args.Length > 0)

        {

            // Display each argument

            for (int i = 0; i < args.Length; i++)

            {

                Console.WriteLine("Argument {0}: {1}", i, args[i]);

            }

        }

        else

        {

            Console.WriteLine("No command-line arguments passed.");

        }

    }

}

In the above code, we check if there are any command-line arguments passed to the program using the "args.Length" property. If there are any arguments, we display each argument using a for loop.

In this article, we learned how to pass and access command-line arguments in C#. Passing command-line arguments is a simple process that involves passing the arguments separated by space. Accessing command-line arguments is done using the "args" parameter of the "Main" method. By following the above steps, you can easily pass and access command-line arguments in your C# programs.