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  • c#解析XML到DATASET及dataset转为xml文件函数

    //将xml对象内容字符串转换为DataSet
            public static DataSet ConvertXMLToDataSet(string xmlData)
            {
                StringReader stream = null;
                XmlTextReader reader = null;
                try
                {
                    DataSet xmlDS = new DataSet();
                    stream = new StringReader(xmlData);
                    //从stream装载到XmlTextReader
                    reader = new XmlTextReader(stream);
                    xmlDS.ReadXml(reader);
                    return xmlDS;
                }
                catch (System.Exception ex)
                {
                    throw ex;
                }
                finally
                {
                    if (reader != null)
                        reader.Close();
                }
            }
     
            //将xml文件转换为DataSet
            public static DataSet ConvertXMLFileToDataSet(string xmlFile)
            {
                StringReader stream = null;
                XmlTextReader reader = null;
                try
                {
                    XmlDocument xmld = new XmlDocument();
                    xmld.Load(xmlFile);
     
                    DataSet xmlDS = new DataSet();
                    stream = new StringReader(xmld.InnerXml);
                    //从stream装载到XmlTextReader
                    reader = new XmlTextReader(stream);
                    xmlDS.ReadXml(reader);
                    //xmlDS.ReadXml(xmlFile);
                    return xmlDS;
                }
                catch (System.Exception ex)
                {
                    throw ex;
                }
                finally
                {
                    if (reader != null)
                        reader.Close();
                }
            }
     
            //将DataSet转换为xml对象字符串
            public static string ConvertDataSetToXML(DataSet xmlDS)
            {
                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);
     
                    UnicodeEncoding utf = new UnicodeEncoding();
                    return utf.GetString(arr).Trim();
                }
                catch (System.Exception ex)
                {
                    throw ex;
                }
                finally
                {
                    if (writer != null)
                        writer.Close();
                }
            }
     
            //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();
                }
            }
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  • 原文地址:https://www.cnblogs.com/marsli/p/4121441.html
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