#196 – Getting a Result Back from a MessageBox

The MessageBox.Show method always returns a result, indicating which button a user clicked to dismiss the dialog box.  If you choose, you can check the result to see which button the user clicked.  The value returned will always be a member of the MessageBoxResult enumeration.

            // Not checking result
            MessageBox.Show("Hi!");

            // Always resturns MessageBoxResult.OK, since the dialog only has one button
            MessageBoxResult res = MessageBox.Show("Hello again");

In the above examples, the result didn’t really matter.  But you often want to know which of two or more buttons the user clicked.

            MessageBoxResult res = MessageBox.Show("Do you like brussel sprouts?", "Green Food", MessageBoxButton.YesNo);

            if (res == MessageBoxResult.No)
                MessageBox.Show("Me neither");
            else
                MessageBox.Show("Wow, you're a cruciferous vegetable lover!");

About Sean
Software developer in the Twin Cities area, passionate about .NET technologies. Equally passionate about my own personal projects related to family history and preservation of family stories and photos.

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