private void DeleteEbayArticles()
        {
            string messageBoxText = string.Format("Sollen alle {0} Artikel gelöscht werden?", WheelListFlat.Count);
            string caption        = "Lösche Artikel";
            var    buttons        = MessageBoxButtons.YesNo;
            var    result         = MessageBox.Show(messageBoxText, caption, buttons);

            if (result.Equals(DialogResult.Yes))
            {
                var allArticles = GetOriginalArticles();
                foreach (var articleToDelete in WheelListFlat)
                {
                    var key = articleToDelete.Description + articleToDelete.Description2;
                    ebayUploader.RemoveAllEbayArticles(articleToDelete);
                    allArticles.Remove(key);
                }
                WriteAllArticlesBackToCSV(new List <IArticle>(allArticles.Values));
            }
        }