How to show a custom error or warning message box in .NET Winforms?

Question

How can I show message boxes with a "Ding!" sound and a red 'close' button in it? This is what I'm talking about:

I'm trying to create some custom errors and warnings, but this:

MessageBox.Show("asdf");

doesn't seem to give me any customization options.

score 300 · Accepted Answer · edited Dec 31 '13 at 17:08

300

Try this:

MessageBox.Show("Some text", "Some title", 
    MessageBoxButtons.OK, MessageBoxIcon.Error);

edited Dec 31 '13 at 17:08

caiosm1005

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answered Jan 21 '10 at 13:23

Andrew Hare

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8

MSDN: Other icons you can use : http://msdn.microsoft.com/en-us/library/system.windows.forms.messageboxicon.aspx – claws Jan 21 '10 at 14:00
3

now it's not supported MessageBoxIcon.Error. try something like MessageBox.Show("Some text", "Some title", MessageBoxButton.OK,MessageBoxImage.Warning); – JPerk Apr 03 '18 at 21:51

score 23 · Answer 2 · edited Mar 09 '22 at 14:24

23

Try details: use any option:

MessageBox.Show(
    "your message",
    "window title", 
    MessageBoxButtons.OK, 
    MessageBoxIcon.Warning // for Warning  
    //MessageBoxIcon.Error // for Error 
    //MessageBoxIcon.Information  // for Information
    //MessageBoxIcon.Question // for Question
);

edited Mar 09 '22 at 14:24

TylerH

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answered Jun 30 '15 at 12:21

Ahosan Karim Asik

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score 7 · Answer 3 · edited Sep 14 '15 at 14:00

7

MessageBox.Show(
  "your message",
  "window title", 
  MessageBoxButtons.OK, 
  MessageBoxIcon.Asterisk //For Info Asterisk
  MessageBoxIcon.Exclamation //For triangle Warning 
)

edited Sep 14 '15 at 14:00

Antonio

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answered Jul 08 '15 at 12:35

Onur Adıyaman

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score 2 · Answer 4 · answered Jun 28 '18 at 14:15

You should add namespace if you are not using it:

System.Windows.Forms.MessageBox.Show("Some text", "Some title", 
    System.Windows.Forms.MessageBoxButtons.OK, 
    System.Windows.Forms.MessageBoxIcon.Error);

Alternatively, you can add at the begining of your file:

using System.Windows.Forms

and then use (as stated in previous answers):

MessageBox.Show("Some text", "Some title", 
    MessageBoxButtons.OK, MessageBoxIcon.Error);

How to show a custom error or warning message box in .NET Winforms?

4 Answers4