C# MessageBox dialog result

Question

I want to make a MessageBox confirmation. Here is the message box:

MessageBox.Show("Do you want to save changes?", "Confirmation", messageBoxButtons.YesNoCancel);

And I want to make something like this (in pseudocode):

if (MessageBox.Result == DialogResult.Yes)
    ;
else if (MessageBox.Result == DialogResult.No)
    ;
else
    ;

How can I do that in C#?

score 144 · Accepted Answer · edited Sep 18 '14 at 07:19

144

DialogResult result = MessageBox.Show("Do you want to save changes?", "Confirmation", MessageBoxButtons.YesNoCancel);
if(result == DialogResult.Yes)
{ 
    //...
}
else if (result == DialogResult.No)
{ 
    //...
}
else
{
    //...
}

edited Sep 18 '14 at 07:19

nsgocev

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answered May 27 '12 at 20:44

david.s

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score 14 · Answer 2 · edited Jan 29 '18 at 22:46

14

You can also do it in one row:

if (MessageBox.Show("Text", "Title", MessageBoxButtons.YesNo) == DialogResult.Yes)

And if you want to show a messagebox on top:

if (MessageBox.Show(new Form() { TopMost = true }, "Text", "Text", MessageBoxButtons.YesNo) == DialogResult.Yes)

edited Jan 29 '18 at 22:46

Jeff Puckett

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answered May 27 '12 at 20:52

sczdavos

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Yes but on "else if" if i put else if (MessageBox.Show("Text", "Title", MessageBoxButtons.YesNo) == DialogResult.No) the message will re-apear – biox May 27 '12 at 21:01
Of course but if you have only two choices Yes/No you have no reason to use else if... – sczdavos May 27 '12 at 21:04
Oh ok sry. At least you known this possibility :P That I mainly want to mention is the TopMost property. – sczdavos May 27 '12 at 21:10

score 9 · Answer 3 · edited May 19 '16 at 14:16

9

If you're using WPF and the previous answers don't help, you can retrieve the result using:

var result = MessageBox.Show("Message", "caption", MessageBoxButton.YesNo, MessageBoxImage.Question);

if (result == MessageBoxResult.Yes)
{
    // Do something
}

edited May 19 '16 at 14:16

Peter Mortensen

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answered Jan 07 '16 at 04:04

XtraSimplicity

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1

Thank you this helped me ;) – Tristan Read Dec 10 '19 at 18:18

Edd · Answer 4 · 2014-11-06T11:46:50.530

2

This answer was not working for me so I went on to MSDN. There I found that now the code should look like this:

//var is of MessageBoxResult type
var result = MessageBox.Show(message, caption,
                             MessageBoxButtons.YesNo,
                             MessageBoxIcon.Question);

// If the no button was pressed ... 
if (result == DialogResult.No)
{
    ...
}

Hope it helps

edited Nov 06 '14 at 11:46

answered Oct 17 '14 at 10:03

Edd

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score 2 · Answer 5 · answered Jul 23 '16 at 20:30

Rather than using if statements might I suggest using a switch instead, I try to avoid using if statements when possible.

var result = MessageBox.Show(@"Do you want to save the changes?", "Confirmation", MessageBoxButtons.YesNoCancel);
switch (result)
{
    case DialogResult.Yes:
        SaveChanges();
        break;
    case DialogResult.No:
        Rollback();
        break;
    default:
        break;
}

C# MessageBox dialog result

5 Answers5

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