internal static void Error(string message)
        {
            var mbox = new Messagebox
            {
                textBlock = { Text = $"An application Error occured:{Environment.NewLine}{message}" }
            };

            var button = new Button
            {
                Content = "OK",
                Margin  = new Thickness(2)
            };

            button.Click += (sender, args) => mbox.Close();
            DockPanel.SetDock(button, Dock.Right);
            mbox.dockPanel.Children.Add(button);

            mbox.ShowDialog();
        }
        internal static bool ShowYesNo(string message, string caption)
        {
            var isYes = false;

            var mbox = new Messagebox
            {
                Title     = caption,
                textBlock = { Text = message }
            };

            var buttonNo = new Button
            {
                Content = mbox.FindResource("No"),
                Width   = 140,
                Style   = mbox.FindResource("MaterialDesignFlatButton") as Style
            };

            var buttonYes = new Button
            {
                Content = "Yes",
                Width   = 140
            };


            buttonNo.Click  += (sender, args) => mbox.Close();
            buttonYes.Click += (sender, args) =>
            {
                isYes = true;
                mbox.Close();
            };

            DockPanel.SetDock(buttonNo, Dock.Left);
            DockPanel.SetDock(buttonYes, Dock.Right);

            mbox.dockPanel.Children.Add(buttonNo);
            mbox.dockPanel.Children.Add(buttonYes);

            mbox.ShowDialog();

            return(isYes);
        }