Show message Box in .net console application

Question

How to show a message box in a .net c# or vb console application ? Something like:

 Console.WriteLine("Hello World");
 MessageBox.Show("Hello World");

or

Console.WriteLine("Hello")
MsgBox("Hello")

in c# and vb respectively.
Is it possible?

Answer 1

We can show a message box in a console application. But first include this reference in your vb.net or c# console application

System.Windows.Forms;

Reference:

To add reference in vb.net program right click (in solution explorer) on your project name-> then add reference-> then .Net-> then select System.Windows.Forms.
To add reference in c# program right click in your project folders shown in solution explorer on add references-> .Net -> select System.Windows.Forms.

then you can do the below code for c# console application:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace ConsoleApplication6
{
    class Program
    {
        static void Main(string[] args)
        {


            MessageBox.Show("Hello World");
        }
    }
}

For the vb.net application you can simply code after inclusion of above mentioned reference

Module Module1

    Sub Main()
        MsgBox("Hello")
        Console.ReadKey()


    End Sub

End Module

Adapted from this answer to a related question.

Answer 2

To have a simple message box inside your console application you can follow the below steps.

1. Create a property with attribute of

using System.Runtime.InteropServices;

[DllImport("User32.dll", CharSet = CharSet.Unicode)]

public static extern int MessageBox(IntPtr h, string m, string c, int type);

2. User the property to call the message box.

   MessageBox((IntPtr)0, "asdasds", "My Message Box", 0);

           using System;
           using System.Runtime.InteropServices;
           namespace AllKeys
           {
               public class Program
               {
                   [DllImport("User32.dll", CharSet = CharSet.Unicode)]
                   public static extern int MessageBox(IntPtr h, string m, string c, int type);
   
                   public static void Main(string[] args)
                   {
                       MessageBox((IntPtr)0, "Your Message", "My Message Box", 0);
                   }
               }
           }
   

Answer 3

In C# add the reference "PresentationFramework" in the project. Next in the class that you need the MessageBox add

using System.Windows;

also you can call the MessageBox class without the using like that:

System.Windows.MessageBox.Show("Stackoverflow");