コレ S付きでもなる

2017/10/03 20:35:54

ExceptionType:
System.Reflection.TargetInvocationException
ExceptionMessage:
呼び出しのターゲットが例外をスローしました。
ExceptionStackTrace:
場所 System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
場所 System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
場所 System.Delegate.DynamicInvokeImpl(Object[] args)
場所 System.Windows.RoutedEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
場所 System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
場所 System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
場所 System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
場所 System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
場所 System.Windows.Media.UniqueEventHelper`1.InvokeEvents(Object sender, TEventArgs args)
場所 System.Windows.Media.MediaEventsHelper.OnMediaFailed(Object o)
場所 System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
場所 System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)