void UpdateAttendanceCompleted(object sender, System.ComponentModel.AsyncCompletedEventArgs e)
{
if (e.Error == null)
{
var a = SelectedAttendance;
var index = Attendances.IndexOf(SelectedAttendance);
Attendances.RemoveAt(index);
Attendances.Insert(index, a);
SelectedAttendance = a;
}
else
{
ErrorProvider.ShowError(e.Error, Navigator);
}
Busy = false;
}
