全部。我正在尝试使用 Visual Studio 2010 为 Windows Phone 7 开发一个应用程序。它是一个音乐播放器，应该能够根据当前事件播放音乐。
我设法提取了事件，但是当我尝试将它与播放器结合时，整个播放器就会崩溃。这是代码。
void Appointments_SearchCompleted(object sender, AppointmentsSearchEventArgs e)
{
try
{
AppointmentResultsDataLINQ.DataContext =
from Appointment appt in e.Results
where appt.IsAllDayEvent == false
select appt;
}
catch (System.Exception)
{
//No results
}
}
private void button2_Click(object sender, RoutedEventArgs e)
{
if ((((Appointment)(AppointmentResultsDataLINQ.DataContext)).Subject).Equals("Meeting"))
{
mediaElement1.Source = new Uri("http://www.opendrive.com/files/NV8zNTMwNDYwX2hxRXZR/Crystallize.mp3", UriKind.Absolute);
}
else
{
mediaElement1.Source = new Uri("https://www.opendrive.com/files/NV8zMjAxODY0X0VBNDJY/Hetken%20tie%20on%20kevyt%20(piano%20cover)%20-%20YouTube.mp3", UriKind.Absolute);
}
mediaElement1.Play();
}