public partial class App : Application
    {
        /// <summary>
        /// WPF bug or smth else... Fixed in net fx 4.5 but in 4.6.1 not o_O
        ///  COM exception in datagrid copypaste
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Application_DispatcherUnhandledException(object sender, DispatcherUnhandledExceptionEventArgs e)
        {
            var comException = e.Exception as System.Runtime.InteropServices.COMException;

            if (comException != null && comException.ErrorCode == -2147221040)
                e.Handled = true;
        }
    }