How to get MessageBox.Show() to pop up in the middle of my WPF application?

Question

I have a 700w x 300h WPF applciation and can drag it anywhere on my large screen.

When my application executes:

MessageBox.Show(\"Sorry, this functio         


        

Answer 1

If you're open to using external libraries, one option is the Xceed WPF Toolkit which has a MessageBox that will center properly. It is also very consistent with WPF in general, e.g. it can be styled from XAML.

https://github.com/xceedsoftware/wpftoolkit/wiki/MessageBox

Usage

The MessageBox mimics the behavior of the System.Windows.MessageBox closely. You use similar syntax to create and show a message box.

MessageBoxResult result =  Xceed.Wpf.Toolkit.MessageBox.Show("Hello world!", "Extended WPF ToolKit MessageBox", MessageBoxButton.OK, MessageBoxImage.Question);

MessageBoxResult result =  Xceed.Wpf.Toolkit.MessageBox.Show("Hello world!", "Extended WPF ToolKit MessageBox", MessageBoxButton.OK);

MessageBoxResult result =  Xceed.Wpf.Toolkit.MessageBox.Show("Hello world!", "Extended WPF ToolKit MessageBox");

MessageBoxResult result =  Xceed.Wpf.Toolkit.MessageBox.Show("Hello world!");

The centering on parent window appears to be automatic.