NullReferenceException: 並未將物件參考設定為物件的執行個體。 StackTrace: 於 Quicker.View.TextWindow.<OnWindowClosing>d__96.MoveNext() --- 先前擲回例外狀況之位置中的堆疊追蹤結尾 --- 於 System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 於 System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) 於 System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)