如何将字符串变量读入XML,再读到DATASET?

http://community.youkuaiyun.com/Expert/topic/4491/4491201.xml?temp=.1365015

string xmlData1 ="<?xml version='1.0' encoding='utf-8' ?><E_table><E_title>我们来自天南地北</E_title><E_body>招眼红你好</E_body><E_name>小飞侠</E_name></E_table>";

//Transfer xml string to DataSet
DataSet xmlds=new DataSet();
string NewLine = System.Environment.NewLine;
string s = xmlData1.Replace(NewLine,"");
System.IO.StringReader reader = new System.IO.StringReader(s);
xmlds.ReadXml(reader as System.IO.TextReader);
reader.Close();