Question

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How to get command line from a ClickOnce application?

I was working on a console application and manually added the string[] args inside of Main() after I had already done a bunch of other work. Is that all I have to do to accept command line arguments? Or do I need to configure something elsewhere also? I keep doing Console.WriteLine("{0}",args.Length) and get zero no matter what I send after the exe..

class Program
{
    static void Main(string[] args)
    {
        Console.WriteLine("{0}", args.Length);
    }
}

then I run ...\setup.exe yes no maybe and get 0 for length. What more do I need to do?

MORE INFO:

I tried to break after setting command line arguments in the properties page and I get the following error.:

I am thinking that someone’s comment about ClickOnce deployment is my problem. How can I deploy in VS2010 to allow this?

MORE INFO:

I disabled “ClickOnce security settings” under Properties -> Security and was able to debug successfully, but when I click on Publish, it automatically turns this setting back on.. How do I prevent that?

Answer 1

This example:

using System;

namespace ConsoleApplication1
{
    internal class Program
    {
        private static void Main(string[] args)
        {
            Console.WriteLine("Number of command line parameters = {0}", args.Length);
            for (int i = 0; i < args.Length; i++)
            {
                Console.WriteLine("Arg[{0}] = [{1}]", i, args[i]);
            }
        }
    }
}

When executed as ConsoleApplication1.exe a b c will output:

Number of command line parameters = 3
Arg[0] = [a]
Arg[1] = [b]
Arg[2] = [c]

See Command Line Parameters Tutorial

Update: this code

class Program
{
    static void Main(string[] args)
    {
        Console.WriteLine("{0}", args.Length);
    }
}

When executed as ConsoleApplication1.exe a b c outputs

3

Above all, make sure you’re executing the correct .exe.