Novacode.DocX.InsertChart C# (CSharp) Method

        public void InsertChart(Chart chart)
        {
            // Create a new chart part uri.
            String chartPartUriPath = String.Empty;
            Int32 chartIndex = 1;
            do
            {
                chartPartUriPath = String.Format
                (
                    "/word/charts/chart{0}.xml",
                    chartIndex
                );
                chartIndex++;
            } while (package.PartExists(new Uri(chartPartUriPath, UriKind.Relative)));

            // Create chart part.
            PackagePart chartPackagePart = package.CreatePart(new Uri(chartPartUriPath, UriKind.Relative), "application/vnd.openxmlformats-officedocument.drawingml.chart+xml", CompressionOption.Normal);

            // Create a new chart relationship
            String relID = GetNextFreeRelationshipID();
            PackageRelationship rel = mainPart.CreateRelationship(chartPackagePart.Uri, TargetMode.Internal, "http://schemas.openxmlformats.org/officeDocument/2006/relationships/chart", relID);

            // Save a chart info the chartPackagePart
            using (TextWriter tw = new StreamWriter(new PackagePartStream(chartPackagePart.GetStream(FileMode.Create, FileAccess.Write))))
                chart.Xml.Save(tw);

            // Insert a new chart into a paragraph.
            Paragraph p = InsertParagraph();
            XElement chartElement = new XElement(
                XName.Get("r", w.NamespaceName),
                new XElement(
                    XName.Get("drawing", w.NamespaceName),
                    new XElement(
                        XName.Get("inline", wp.NamespaceName),
                        new XElement(XName.Get("extent", wp.NamespaceName), new XAttribute("cx", "5486400"), new XAttribute("cy", "3200400")),
                        new XElement(XName.Get("effectExtent", wp.NamespaceName), new XAttribute("l", "0"), new XAttribute("t", "0"), new XAttribute("r", "19050"), new XAttribute("b", "19050")),
                        new XElement(XName.Get("docPr", wp.NamespaceName), new XAttribute("id", "1"), new XAttribute("name", "chart")),
                        new XElement(
                            XName.Get("graphic", a.NamespaceName),
                            new XElement(
                                XName.Get("graphicData", a.NamespaceName),
                                new XAttribute("uri", c.NamespaceName),
                                new XElement(
                                    XName.Get("chart", c.NamespaceName),
                                    new XAttribute(XName.Get("id", r.NamespaceName), relID)
                                )
                            )
                        )
                    )
               ));
            p.Xml.Add(chartElement);
        }