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Asked: 2026-05-10T14:58:45+00:00

I have just installed C# for the first time, and at first glance it

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I have just installed C# for the first time, and at first glance it appears to be very similar to VB6. I decided to start off by trying to make a ‘Hello, World!’ UI Edition.

I started in the Form Designer and made a button named ‘Click Me!’ proceeded to double-click it and typed in

MessageBox('Hello, World!');

I received the following error:

MessageBox is a ‘type’ but used as a ‘variable’

Fair enough, it seems in C# MessageBox is an Object. I tried the following

MessageBox a = new MessageBox('Hello, World!');

I received the following error: MessageBox does not contain a constructor that takes ‘1’ arguments

Now I am stumped. Please help.

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1 Answer

  1. MessageBox.Show also returns a DialogResult, which if you put some buttons on there, means you can have it returned what the user clicked. Most of the time I write something like

    if (MessageBox.Show('Do you want to continue?', 'Question', MessageBoxButtons.YesNo) == MessageBoxResult.Yes) {      //some interesting behaviour here }

    which I guess is a bit unwieldy but it gets the job done.

    See https://learn.microsoft.com/en-us/dotnet/api/system.windows.forms.dialogresult for additional enum options you can use here.

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