C# MessageBox with DialogResult giving "No overload for method 'Show' takes '3' arguments"

Question

I am developing an application for Windows CE using Visual Studio 2008.

Code:

    private void cmdLogOn_Click(object sender, EventArgs e)
      {
        if (loginStatus == false)
        {
            DialogResult dialogresult = MessageBox.Show("Are you sure?", "text", MessageBoxButtons.YesNo);
            if (dialogresult == DialogResult.Yes)
            {
                //Do Stuff;
            }
        }
        else
        {
            //Do stuff
        }
    }

I am getting the error : "No overload for method 'Show' takes '3' arguments". Any idea why?

EDIT: Here is a step by step using a new application to demonstrate the issue:

As you can see, I am using VS2008

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2.Visual C# > Smart Device Project

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Target platform: Windows CE - .NET Compact Framework Version 3.5

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I create a button = button1 & a label = label1

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Here is the code I entered, but the error persists

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I guess you need to let us know exactly what `MessageBox` is in the context of your code. — David Heffernan, Jul 14 '14 at 10:59

David Heffernan · Answer 1 · 2014-07-14T11:48:21.023

1

One plausible explanation is that you are targetting .net 1 which, for the compact framework, only has a single MessageBox.Show method that accepts a single parameter of type string.

Support in the compact framework for the overload that you seek to use was added in .net 2.0, at least as far as I can tell from the documentation.

You state in comments that you are using .net 3.5. In which case the only sane conclusion to draw would be that MessageBox must be something other than System.Windows.Forms.MessageBox, since that class, in .net 3.5, on the compact framework, has the overload you seek to call.

Finally, @CathalMF asserts that the overload really is not present in the compact framework. Maybe the documentation is just wrong!

edited Jul 14 '14 at 11:48

answered Jul 14 '14 at 10:57

David Heffernan

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That should be in the question. Also in the question should be enough information for us to reproduce what you report. Since the method you seek to call is supported in the .net 3.5 compact framework, what you claim in the question does not add up. How can we reproduce what you report? – David Heffernan Jul 14 '14 at 11:05
@CathalMF According to the doc that I linked to it is – David Heffernan Jul 14 '14 at 11:16
@DavidHeffernan That's a link to the Full Framework doc. – CathalMF Jul 14 '14 at 11:22
@CathalMF At the bottom it says supported on Windows CE – David Heffernan Jul 14 '14 at 11:41
@DavidHeffernan Ok I missed that. I guess their documentation is wrong. – CathalMF Jul 14 '14 at 11:45

score 1 · Answer 2 · edited Mar 12 '19 at 17:02

1

You can try something like this:

MessageBox.Show("my text", "title", MessageBoxButtons.OKCancel, MessageBoxIcon.Exclamation, 
    MessageBoxDefaultButton.Button1);

Source

edited Mar 12 '19 at 17:02

Lews Therin

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answered Jul 14 '14 at 10:58

Burak Karakuş

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score 1 · Accepted Answer · edited Mar 12 '19 at 17:02

1

The simple answer is in the .NET Compact framework there is no overload which takes 3 arguments, as the error says.

You can use this:

DialogResult dialogresult = MessageBox.Show("Are you sure?", "text",
    MessageBoxButtons.YesNo, MessageBoxIcon.None, MessageBoxDefaultButton.Button1);

edited Mar 12 '19 at 17:02

Lews Therin

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answered Jul 14 '14 at 11:12

CathalMF

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In any other non compact framework application I am able to do what I did, it worked your way! Thanks! – davidvnog Jul 14 '14 at 11:38
1

Ya there are loads of overloads which work in the Full framework which don't work in the compact framework. – CathalMF Jul 14 '14 at 11:45

score -3 · Answer 4 · answered Jul 14 '14 at 10:55

-3

you have to use the System.Windows.Forms

System.Windows.Forms.DialogResult dialogresult = System.Windows.Forms.MessageBox.Show("Are you sure?", "text", System.Windows.Forms.MessageBoxButtons.YesNo);

answered Jul 14 '14 at 10:55

Dhaval Patel

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I am using `System.Windows.Forms.DialogResult` – davidvnog Jul 14 '14 at 10:59
just copy and past my answer in your solution and try it – Dhaval Patel Jul 14 '14 at 11:00
Then you are making some other mistake there is nothing related MessageBox – Dhaval Patel Jul 14 '14 at 11:05

C# MessageBox with DialogResult giving "No overload for method 'Show' takes '3' arguments"

4 Answers4