Some code snippets to help FileProperty fpropData = new FileProperty(“FileData”, new MetaData(), String.Empty, String.Empty); fpropData.MetaData.DisplayName = “File Data”; fpropData.MetaData.Description = “File Data”; this.Properties.Add(fpropData); public static object ToFilePropertyValue(string propName, string filename, byte[] content) { return (new FileProperty(propName, new MetaData(), filename, Convert.ToBase64String(content))).Value; } dr[“File”] = Helper.ToFilePropertyValue(“File”, “foobar.dat”, {foobar byte[]});