Musikplayer in c# - WPF

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Data;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Imaging;

using System.Windows.Navigation;

using System.Windows.Shapes;

namespace InternetRadio

{

    public partial class MainWindow : Window

    {

        MediaPlayer A = new MediaPlayer();

        public MainWindow()

        {

            InitializeComponent();

        }

        private void slider1_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)

        {

           A.Voloume = slider1.Value;

        }

        private void button1_Click(object sender, RoutedEventArgs e)

        { 

            Uri Data = new Uri(textBox1.Text.ToString());

            A.Open(Data);

            A.Play();

        }

        private void slider2_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)

        {

            A.Balance = slider2.Value;

        }

    }

}