如何将dataset直接转化为XML文件流

[sardineany]

RT。。。

[不懂装懂]

ds.writexml(路径)?????

[不懂装懂]

ds.writexml(路径)?????

[q107770540]

//将DataSet转换为xml文件
        public static void ConvertDataSetToXMLFile(DataSet xmlDS,string xmlFile)
        {
            MemoryStream stream = null;
            XmlTextWriter writer = null;

            try
            {
                stream = new MemoryStream();
                //从stream装载到XmlTextReader
                writer = new XmlTextWriter(stream, Encoding.Unicode);

                //用WriteXml方法写入文件.
                xmlDS.WriteXml(writer);
                int count = (int)stream.Length;
                byte[] arr = new byte[count];
                stream.Seek(0, SeekOrigin.Begin);
                stream.Read(arr, 0, count);

                //返回Unicode编码的文本
                UnicodeEncoding utf = new UnicodeEncoding();
                StreamWriter sw = new StreamWriter(xmlFile);
                sw.WriteLine("<?xml version=\"1.0\" encoding=\"utf-8\"?>");
                sw.WriteLine(utf.GetString(arr).Trim());
                sw.Close();
            }
            catch( System.Exception ex )
            {
                throw ex;
            }
            finally
            {
                if (writer != null) writer.Close();
            }
        }

    }

参考：

[bryht]

序列化
反序列化？

[luxi0194]

ds.WriteXml(）

[捷哥1999]

可以使用XmlDataDocument 直接操作数据集的数据，存储为xml！

public void SingleTable2XML() 
{
//Create an ODBC connection to the database. Here it is an Access file

OdbcConnection conn = new OdbcConnection("DSN=XmlDb_NorthWind");

//Create a DataSet with a name "XmlDb"

DataSet dataset = new DataSet("XmlDb");

//Create a DataAdapter to load data from original data source to the DataSet

OdbcDataAdapter adapter = new OdbcDataAdapter();
adapter.SelectCommand = new OdbcCommand("SELECT * FROM Customers", conn);
adapter.Fill(dataset, "Customers");

//Create a virtual XML document on top of the DataSet

XmlDataDocument doc = new XmlDataDocument(dataset); 

//Output this XML document

doc.Save(Console.Out);

//NUnit test to confirm the result is exactly what we expect

Assert.AreEqual("XmlDb", doc.DocumentElement.LocalName);
Assert.AreEqual("Customers", doc.DocumentElement.FirstChild.LocalName);
}

[捷哥1999]

参考资料：
Programmatically using ADO.NET and XML

[king_wen]

飘过~~~~~~~~~~~

[tashiwoweiyi]

我是来学习的