C# XElement.Save方法代碼示例

 private void Trans(XElement serializedExpression)
 {
     serializedExpression.Save("beforeTransit.xml");
     Console.WriteLine("beforeTransit:");
     Console.WriteLine(serializedExpression.ToString());
     Transit(serializedExpression);
     Console.WriteLine("afterTransit:");
     Console.WriteLine(serializedExpression.ToString());
     serializedExpression.Save("afterTransit.xml");
 }

 /// <summary>
 /// 保存xml對象至文件
 /// </summary>
 /// <param name="xe">要保存的內容</param>
 /// <param name="xmlName">保存的文件名（不含擴展名）</param>
 /// <param name="isFullXmlName">True=程序內配置路徑地址，隻含文件名（不含擴展名）====False=文件絕對地址</param>
 public void SaveXml(XElement xe, string xmlName, bool isFullXmlName)
 {
     if (isFullXmlName)
     {
         CreatNewDirTry();
         xe.Save(GetXMLFileFullName(xmlName));
     }
     else
     {
         xe.Save(GetXMLFileFullName(xmlName));
     }
 }

 public static void Export(List<Dictionary<string, string>> data, string savepath, string format)
 {
     if (format == "JSON")
     {
         string json = JsonConvert.SerializeObject(data, Formatting.Indented);
         File.WriteAllText(savepath, json);
     }
     else if (format == "XML")
     {
         XElement root = new XElement("Items");
         foreach (var item in data)
         {
             XElement itemEle = new XElement("Item");
             itemEle.Add(item.Select(kv => new XElement(kv.Key, kv.Value)));
             root.Add(itemEle);
         }
         root.Save(savepath);
     }
     else if (format == "CSV")
     {
         string res = "";
         foreach (var item in data)
         {
             res += String.Join(", ",item.Select(kv => string.Format("\"{0}\"", kv.Value)))+"\n";
         }
         File.WriteAllText(savepath, res);
     }
 }

 static void Main()
 {
     DirectoryInfo directory = new DirectoryInfo(@"../../../../02.XMLProcessingIn.NET");
     XElement dirXml = new XElement("directory");
     dirXml.Add(TraverseDirectory(directory));
     dirXml.Save("../../../dirsX.xml");
 }

        public static void Generate()
        {
            using (var db = new SalesContext())
            {
                var sales = new XElement("sales");

                foreach (var supermarket in db.Supermarkets)
                {
                    var sale = new XElement("sale");
                    sale.SetAttributeValue("vendor", supermarket.Name);

                    var records = db.Records
                        .Where(x => x.Supermarket.Id == supermarket.Id)
                        .GroupBy(x => x.Date)
                        .OrderBy(x => x.Key)
                        .Select(x => new { Date = x.Key, Sum = x.Sum(y => y.Quantity * y.UnitPrice) });

                    foreach (var record in records)
                    {
                        var summary = new XElement("summary");

                        summary.SetAttributeValue("date", record.Date.ToShortDateString());
                        summary.SetAttributeValue("total-sum", record.Sum.ToString("00"));

                        sale.Add(summary);
                    }

                    sales.Add(sale);
                }

                sales.Save(FilePath);
                //Console.WriteLine(File.ReadAllText(FilePath));
            }
        }

        static void Main()
        {
            // Creating person.txt
            string textFilePath = "../../person.txt";
            StreamWriter writer = new StreamWriter(textFilePath);

            using (writer)
            {
                writer.WriteLine("Иван Иванов");
                writer.WriteLine("Перущица, ул.'Освобождение', №1");
                writer.WriteLine("+359888123456");
            }

            StreamReader reader = new StreamReader(textFilePath);

            using (reader)
            {
                var person = new
                {
                    Name = reader.ReadLine(),
                    Address = reader.ReadLine(),
                    Phone = reader.ReadLine()
                };

                XElement personXElement = new XElement("Person",
                    new XElement("Name", person.Name),
                    new XElement("Address", person.Address),
                    new XElement("Phone", person.Phone));

                personXElement.Save("../../person.xml");
            }
        }

        // creates folder, .xml file, and inserts data
        public static bool CreateXmlFile(string root, XElement fileSystemTree)
        {


            string pathString = System.IO.Path.Combine(root, "XMLFolder");

            System.IO.Directory.CreateDirectory(pathString);

            string fileName = "XMLFile.xml";
            // Using Combine to add the file name to the path.
            pathString = System.IO.Path.Combine(pathString, fileName);


            if (!System.IO.File.Exists(pathString))
            {
                using (System.IO.FileStream fs = System.IO.File.Create(pathString))
                {

                    fileSystemTree.Save(fs);
                    return true;
                }
            }
            else
            {
                return false;
            }


        }

        public override Task WriteToStreamAsync(Type type, object value,
            Stream writeStream, System.Net.Http.HttpContent content,
            System.Net.TransportContext transportContext)
        {
            return Task.Factory.StartNew(() =>
            {
                if (typeof(IEnumerable<IData>).IsAssignableFrom(type))
                {
                    Type elementType = type.GetGenericArguments().First();

                    var resultXElement = new XElement("Data");

                    foreach (var element in (value as IEnumerable))
                    {
                        resultXElement.Add(GetXNode(elementType.Name, element).Root);
                    }

                    resultXElement.Save(writeStream);
                    return;
                }

                XDocument xNode = GetXNode(type.Name, value);

                xNode.Save(writeStream);
            });
        }

        protected override void backupXML(string plikXml,string serwis,string typ)
        {
            if (numKolekcja.Count > 0)
                    {
                    var xmlFile = new XElement(typ.Replace(' ', '_'), new XAttribute("Data", DateTime.Now.ToString("dd-MM-yyyy")));

                    foreach (var elem in numKolekcja)
                        {
                        var x = new XElement("Row",
                            new XAttribute("Nazwa", elem.Nazwa),
                            new XAttribute("Symbol", elem.Symbol),
                            new XAttribute("Data", elem.Data),
                            new XAttribute("Kurs", elem.Kurs),
                            new XAttribute("MaxMin", elem.MaxMin),
                            new XAttribute("Zmiana", elem.Zmiana),
                            new XAttribute("ZmianaProc", elem.ZmianaProc),
                            new XAttribute("Otwarcie", elem.Otwarcie),
                            new XAttribute("Odniesienie", elem.Odniesienie),
                            new XAttribute("Wolumen", elem.Wolumen),
                            new XAttribute("Obrot", elem.Obrot),
                            new XAttribute("Transakcje", elem.Transakcje));

                        xmlFile.Add(x);
                        }

                    xmlFile.Save(plikXml);
                    Loger.dodajDoLogaInfo(serwis + typ + messages.xmlOutOK);
                    }
                else
                    Loger.dodajDoLogaError(serwis + typ + messages.xmlOutFail);
        }

        public void ValidateSave()
        {
            WorldEntity world = createTestWorld();

            XElement xElement = WorldTransformer.Instance.ToXElement(world, TransformerSettings.WorldNamespace + "World");

            xElement.Save("unittestsave.xml", SaveOptions.OmitDuplicateNamespaces);

            XmlSchemaSet schemaSet = new XmlSchemaSet();

            schemaSet.Add(null, "WorldSchema1.xsd");

            XDocument xDocument = new XDocument(xElement);
            xDocument.AddAnnotation(SaveOptions.OmitDuplicateNamespaces);
            xDocument.Save("unittest2.xml", SaveOptions.OmitDuplicateNamespaces);

            XElement x1 = new XElement(TransformerSettings.WorldNamespace + "Outer");
            x1.Add(new XElement(TransformerSettings.WorldNamespace + "Inner"));
            x1.Save("unittest3.xml", SaveOptions.OmitDuplicateNamespaces);
            string val = "";
            xDocument.Validate(schemaSet, (o, vea) => {
                val += o.GetType().Name + "\n";
                val += vea.Message + "\n";
            }, true);

            Assert.AreEqual("", val);
        }

 public void ExitSave()
 {
     XElement xRoot = new XElement("ChosenPath");
     XAttribute xPath = new XAttribute("Path", filepath);
     xRoot.Add(xPath);
     xRoot.Save("Config.xml");
 }

        static void Main()
        {
            //Write a program to traverse given directory and write to a XML file its contents together with all subdirectories and files.
            //Use tags <file> and <dir> with attributes. Use XDocument, XElement and XAttribute.
            XElement directoryXml =
                new XElement("root-dir",
                    new XAttribute("path", "C:/Example"),
                    new XElement("dir",
                        new XAttribute("name", "docs"),
                        new XElement("file",
                            new XAttribute("name", "tutorial.pdf")),
                        new XElement("file",
                            new XAttribute("name", "TODO.txt")),
                        new XElement("file",
                            new XAttribute("name", "Presentation.pptx"))),
                    new XElement("dir",
                        new XAttribute("name", "photos"),
                        new XElement("file",
                            new XAttribute("name", "friends.jpg")),
                        new XElement("file",
                            new XAttribute("name", "the_cake.jpg"))
                        )
                    );

            Console.WriteLine(directoryXml);
            directoryXml.Save("../../../directoryXml.xml");
        }

        public static void SetUserRoles(params UserRole[] roles)
        {
            var xml = new XElement("Roles",
                                   roles.Select(role => new XElement("Role", role)));

            xml.Save(TestUserRolesFilePath);
        }

        private static string ConvertXElementToString(XElement xElement)
        {
            if (xElement == null)
            {
                throw new ArgumentNullException("xElement");
            }

            // Convert the xml to a string.
            string xmlResult;
            using (var memoryStream = new MemoryStream())
            {
                using (var writer = new StreamWriter(memoryStream, Encoding.UTF8))
                {
                    xElement.Save(writer);
                }

                xmlResult = Encoding.UTF8.GetString(memoryStream.ToArray());
            }

            if (!string.IsNullOrWhiteSpace(xmlResult) &&
                xmlResult.StartsWith(ByteOrderMarkUtf8))
            {
                xmlResult = xmlResult.Remove(0, ByteOrderMarkUtf8.Length);
            }

            return xmlResult;
        }

 public static void Main()
 {
     XElement directories = new XElement("directories");
     DirectoiesTravers("../../", directories);
     Console.WriteLine("New file is created with name - Directoies.xml");
     directories.Save("../../Directoies.xml");
 }