Silverlight Pronunciation Test

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using PitchContour.ViewModels;

namespace PitchContour
{
    public partial class MainPage : UserControl
    {
        #region fields
        MainViewModel viewModel;
        #endregion

        #region ctor
        public MainPage()
        {
            InitializeComponent();
            viewModel = (MainViewModel)this.DataContext;
            viewModel.SampleVoiceMediaElement = this.sampleVoiceMediaElement;
            viewModel.UserVoiceMediaElement = this.userVoiceMediaElement;
        }
        #endregion ctor

        #region events
        private void sampleVoiceMediaElement_MediaOpened(object sender, RoutedEventArgs e)
        {
            viewModel.SampleVoiceDuration = this.sampleVoiceMediaElement.NaturalDuration;            
        }

        private void userVoiceMediaElement_MediaOpened(object sender, RoutedEventArgs e)
        {
            viewModel.UserVoiceDuration = this.userVoiceMediaElement.NaturalDuration;
        }
        #endregion events
    }
}