How Can I Control Exit Codes in My .NET Console Application?

Controlling Exit Codes in Console Applications

In .NET, controlling the exit code of a console application is essential for communicating status information to external processes or environments. Here, we'll explore the options available to achieve this:

Option 1: Returning the Exit Code from Main

By declaring the Main method with an int return type, you can return the desired exit code directly:

using System;

public class Program
{
    public static int Main()
    {
        // ... Your application logic goes here ...
        return 0;  // 0 indicates successful execution; adjust as needed
    }
}

Option 2: Using Environment.Exit()

Alternatively, you can use the Environment.Exit method to explicitly set the exit code:

using System;

public class Program
{
    public static void Main()
    {
        // ... Your application logic goes here ...
        Environment.Exit(0);  // 0 indicates successful execution; adjust as needed
    }
}

Option 3: Setting Environment.ExitCode

Finally, you can also set the exit code through the Environment.ExitCode property:

using System;

public class Program
{
    public static void Main()
    {
        // ... Your application logic goes here ...

        // Exit with a non-zero value to indicate failure or errors
        Environment.ExitCode = -1;
    }
}

Considerations

The specific method you choose will depend on your application's requirements and context. For example, if your application needs to return specific values based on different execution outcomes, using the Main method's return type might be more suitable. However, if you need to set the exit code from within another part of your code, using Environment.Exit() or Environment.ExitCode would be more appropriate.

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