private void ShowMessageBoxButton_Click(object sender, RoutedEventArgs e)
{
    // Configure message box
    string message = "Hello, MessageBox!";
    // Show message box
    MessageBoxResult result = MessageBox.Show(message);
}

private void ShowMessageBoxButton_Click(object sender, RoutedEventArgs e)
{
    // Configure message box
    string message = "Message text";
    string caption = "Caption text";
    // Show message box
    MessageBoxResult result = MessageBox.Show(message, caption);
}

private void ShowMessageBoxButton_Click(object sender, RoutedEventArgs e)
{
    // Configure message box
    string message = "Hello, MessageBox!";
    string caption = "Caption text";
    MessageBoxButton buttons = MessageBoxButton.OKCancel;
    // Show message box
    MessageBoxResult result = MessageBox.Show(message, caption, buttons);
}

private void ShowMessageBoxButton_Click(object sender, RoutedEventArgs e)
{
    // Configure message box
    string message = "Hello, MessageBox!";
    string caption = "Caption text";
    MessageBoxButton buttons = MessageBoxButton.OKCancel;
    MessageBoxImage icon = MessageBoxImage.Information;
    MessageBoxResult defaultResult = MessageBoxResult.OK;
    MessageBoxOptions options = MessageBoxOptions.RtlReading;
    // Show message box
    MessageBoxResult result = MessageBox.Show(message, caption, buttons, icon, defaultResult, options);
}

private void ShowMessageBoxButton_Click(object sender, RoutedEventArgs e)
{
    // Configure message box
    string message = "Hello, MessageBox!";
    string caption = "Caption text";
    MessageBoxButton buttons = MessageBoxButton.OKCancel;
    MessageBoxImage icon = MessageBoxImage.Information;
    // Show message box
    MessageBoxResult result = MessageBox.Show(message, caption, buttons, icon);
}

private void ShowMessageBoxButton_Click(object sender, RoutedEventArgs e)
{
    // Configure message box
    string message = "Hello, MessageBox!";
    string caption = "Caption text";
    MessageBoxButton buttons = MessageBoxButton.OKCancel;
    MessageBoxImage icon = MessageBoxImage.Information;
    MessageBoxResult defaultResult = MessageBoxResult.OK;
    // Show message box
    MessageBoxResult result = MessageBox.Show(message, caption, buttons, icon, defaultResult);
}