ArcStache.VectorCache.SpatialReferenceToXml C# (CSharp) Method

        private string SpatialReferenceToXml(ISpatialReference sr)
        {
            System.String elementURI = "http://www.esri.com/schemas/ArcGIS/9.2";

            // Create xml writer
            ESRI.ArcGIS.esriSystem.IXMLWriter xmlWriter = new ESRI.ArcGIS.esriSystem.XMLWriterClass();

            // Create xml stream
            ESRI.ArcGIS.esriSystem.IXMLStream xmlStream = new ESRI.ArcGIS.esriSystem.XMLStreamClass();

            // Explicit Cast for IStream and then write to stream
            xmlWriter.WriteTo((ESRI.ArcGIS.esriSystem.IStream)xmlStream);

            // Serialize
            ESRI.ArcGIS.esriSystem.IXMLSerializer xmlSerializer = new ESRI.ArcGIS.esriSystem.XMLSerializerClass();
            xmlSerializer.WriteObject(xmlWriter, null, null, "spatialreference", elementURI, sr);

            return xmlStream.SaveToString();
        }