135

I'd like to create a simple confirm dialog saying "Please check the information and if you're sure it's correct, click OK."

Is there something built in like this?

3 Answers3

261

Here is an example. You can try something like this.

var confirmResult =  MessageBox.Show("Are you sure to delete this item ??",
                                     "Confirm Delete!!",
                                     MessageBoxButtons.YesNo);
if (confirmResult == DialogResult.Yes)
{
    // If 'Yes', do something here.
}
else
{
    // If 'No', do something here.
}

You can also try MessageBoxButtons.OKCancel instead of MessageBoxButtons.YesNo. It depends on your requirements.

  1. If you have .Net Framework 4.6 or above please try this.
MessageBoxResult confirmResult = MessageBox.Show("Are you sure to delete this item ??", "Confirm Delete!!", MessageBoxButton.YesNo);`

if (confirmResult == MessageBoxResult.Yes)
{
   // If 'Yes', do something here.
}
else
{
   // If 'No', do something here.
}
Hans Kesting
  • 38,117
  • 9
  • 79
  • 111
Raaghav
  • 3,000
  • 1
  • 23
  • 21
  • 2
    This approach worked perfectly for me. I had a case where there is a "reset" button which deletes data and this provides a great method for handling that. – niczak May 27 '17 at 16:58
  • 1
    In my case instead of DialogResult I had to use MessageBoxResult – kamil.ka Sep 21 '18 at 05:50
  • MessageBoxButtons.YesNo should read MessageBoxButton.YesNo, and DialogResult changes to MessageBoxResult for .NET 4.6. – Ian Jun 26 '20 at 20:21
19

MessageBox.Show? You can specify the title, caption, and a few options for which buttons to display.

On the other hand, if you're asking people to confirm information, that sounds like you probably want to show a custom dialog - which you can do with Form.ShowDialog.

Jon Skeet
  • 1,421,763
  • 867
  • 9,128
  • 9,194
  • 1
    Thanks, I'll look into the Form.ShowDialog class. BTW, how did you edit your question without it showing the revision? –  Oct 02 '10 at 12:38
9

In .Net Core you can do it like this:

DialogResult dialogResult= MessageBox.Show("Are you sure to delete?", "Confirm", MessageBoxButtons.YesNo);

if (dialogResult == DialogResult.Yes)
{
    //if code here....            
}
else
{
   //else code here.... 
}

Output Result

fbarikzehy
  • 4,885
  • 2
  • 33
  • 39
Ashutosh Mulik
  • 91
  • 1
  • 2
  • Actually that example is .Net 2.x, 3.x and 4.x and not .Net Core. In .Net Core you cannot create WinForms. From .Net Core 3.0 you have the XAML option though, but I am not sure you create Message Boxes the same way. – nivs1978 Jun 01 '21 at 12:33