操作xml文件

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一、xml文件体系如下：

<?xml version="1.0" encoding="utf-8" ?>
<users>
<user code="lm">
<name>秦岭</name>
<sex>male</sex>
<age>28</age>
</user>
<user code="sq">
<name>博客</name>
<sex>female</sex>
<age>27</age>
</user>
</users>

\\192.168.1.5\d$\111 访问远程电脑，在我的电脑里输入的。

private DataSet DownLoadXml()
{
// 使用dataset的writexml方法：

//dsSource.WriteXml(Server.MapPath( "myDataTable.xml "),XmlWriteMode.IgnoreSchema);
//dsSource.WriteXmlSchema(Server.MapPath( "myDataSet.xsd "));

//在用dsSource之前必须先填充它：
//da.Fill(dsSource, "myDataTable ");

DataSet ds = new DataSet("GridView2");
DataAdapter da = new DataAdapter();
da.Fill(ds,"201203060001");
ds.WriteXml(Server.MapPath("201203060001.xml"),XmlWriteMode.IgnoreSchema);
ds.WriteXmlSchema(Server.MapPath("201203060001.xsd"));

}

private string ConvertDataTableToXML(DataTable xmlDS)
{
MemoryStream stream = null;
XmlTextWriter writer = null;
try
{
stream = new MemoryStream();
writer = new XmlTextWriter(stream, Encoding.Default);
xmlDS.WriteXml(writer);
int count = (int)stream.Length;
byte[] arr = new byte[count];
stream.Seek(0, SeekOrigin.Begin);
stream.Read(arr, 0, count);
UTF8Encoding utf = new UTF8Encoding();
return utf.GetString(arr).Trim();
}
catch
{
return String.Empty;
}
finally
{
if (writer != null) writer.Close();
}
}
private DataSet ConvertXMLToDataSet(string xmlData)
{
StringReader stream = null;
XmlTextReader reader = null;
try
{
DataSet xmlDS = new DataSet();
stream = new StringReader(xmlData);
reader = new XmlTextReader(stream);
xmlDS.ReadXml(reader);
return xmlDS;
}
catch (Exception ex)
{
string strTest = ex.Message;
return null;
}
finally
{
if (reader != null)
reader.Close();
}
}