iTextSharp.text.pdf.PdfCell.RemoveLine C# (CSharp) Метод

        private PdfLine RemoveLine(int index) {
            PdfLine oldLine = (PdfLine)lines[index];
            lines.RemoveAt(index);
            contentHeight -= oldLine.Height;
            if (index == 0) {
                if (lines.Count > 0) {
                    firstLine = (PdfLine) lines[0];
                    float firstLineRealHeight = FirstLineRealHeight;
                    contentHeight -= firstLine.Height;
                    firstLine.height = firstLineRealHeight;
                    contentHeight += firstLineRealHeight;
                }
            }
            return oldLine;
        }