How to style a MessageBox (Extended Toolkit) without app.xaml

Question

I created a style for the MessageBox of the Extended Toolkit. It works fine as long as I use it in a WPF project with an app.xaml where I can set the resource in the Application.Resources. When I want to use it in a WPF User Control library there is no app.xaml. Is there any way to use the style there? I can't use the Window.Resources, because the MessageBox is a new window itself.

Answer 1

I've found a solution.

First I've created a static Style property that returns the style I've defined in the ResourceDictionary.

   public static System.Windows.Style MyMessageBoxStyle 
   { 
        get 
        {
            var myResourceDictionary = new ResourceDictionary
            {
                Source = new Uri("/myApplication;component/Style/MyMessageBoxStyle.xaml", UriKind.RelativeOrAbsolute)
            };

            System.Windows.Style defaultMessageBoxStyle = (System.Windows.Style)myResourceDictionary["DefaultMessageBoxStyle"];

            return defaultMessageBoxStyle;
        } 
    }

Then I can apply that Style when calling the MessageBox

MessageBoxResult result = MessageBox.Show("text", "title", MessageBoxButton.YesNoCancel, MyMessageBoxStyle );