public MetadataItem CreateMetadataItem(SerializeTestable serializeTestable)
        {
            var metadataItem = new MetadataItem(serializeTestable);
            var valutadatum  = ValutaDatum;
            var addingdate   = DateTime.Now;
            var stichwoerter = this.Stichwoerter;

            if (stichwoerter == null)
            {
                stichwoerter = "";
            }
            return(metadataItem.Create(Benutzer, Bezeichnung, this._filePath, this.IsRemoveFileEnabled, stichwoerter, this.SelectedTypItem, valutadatum, addingdate));
        }