C#保存与读取DataTable信息到XML格式的方法

 /// 
 /// 将DataTable的内容写入到XML文件中 /// 
 /// 数据源 /// XML文件地址 public static bool WriteToXml(DataTable dt, string address) { try { //如果文件DataTable.xml存在则直接删除 if (File.Exists(address)) { File.Delete(address); } XmlTextWriter writer = new XmlTextWriter(address, Encoding.GetEncoding("GBK")); writer.Formatting = Formatting.Indented; //XML文档创建开始 writer.WriteStartDocument(); writer.WriteComment("DataTable: " + dt.TableName); writer.WriteStartElement("DataTable"); //DataTable开始 writer.WriteAttributeString("TableName", dt.TableName); writer.WriteAttributeString("CountOfRows", dt.Rows.Count.ToString()); writer.WriteAttributeString("CountOfColumns", dt.Columns.Count.ToString()); writer.WriteStartElement("ClomunName", ""); //ColumnName开始 for (int i = 0; i 

 /// 
 /// 从XML文件中读取一个DataTable /// 
 /// 数据源 /// XML文件地址 ///  public static DataTable ReadFromXml(string address) { DataTable dt = new DataTable(); try { if (!File.Exists(address)) { throw new Exception("文件不存在!"); } XmlDocument xmlDoc = new XmlDocument(); xmlDoc.Load(address); XmlNode root = xmlDoc.SelectSingleNode("DataTable"); //读取表名 dt.TableName = ((XmlElement)root).GetAttribute("TableName"); //Console.WriteLine("读取表名： {0}", dt.TableName); //读取行数 int CountOfRows = 0; if (!int.TryParse(((XmlElement)root). GetAttribute("CountOfRows").ToString(), out CountOfRows)) { throw new Exception("行数转换失败"); } //读取列数 int CountOfColumns = 0; if (!int.TryParse(((XmlElement)root). GetAttribute("CountOfColumns").ToString(), out CountOfColumns)) { throw new Exception("列数转换失败"); } //从第一行中读取记录的列名 foreach (XmlAttribute xa in root.ChildNodes[0].Attributes) { dt.Columns.Add(xa.Value); //Console.WriteLine("建立列： {0}", xa.Value); } //从后面的行中读取行信息 for (int i = 1; i 

 static void Main(string[] args) { //1.将DataTable内容写入到XML文件 //建立DataTable取名Table4Test DataTable dt1 = new DataTable("Table4Test"); //生成四列，列名为Column0-3 dt1.Columns.Add("Column0"); dt1.Columns.Add("Column1"); dt1.Columns.Add("Column2"); dt1.Columns.Add("Column3"); //生成四行 dt1.Rows.Add("A0", "A1", "A2", "A3"); dt1.Rows.Add("B0", "B1", "B2", "B3"); dt1.Rows.Add("C0", "C1", "C2", "C3"); //写入到XML if (WriteToXml(dt1, "DataTable.xml")) { Console.WriteLine("写入成功"); } //================================ //2.从XML文件中读取内容到DataTable //读取信息 DataTable dt2 = ReadFromXml("DataTable.xml"); //输出读取的信息 Console.WriteLine("读取到的信息："); for (int i = 0; i