请问如何利用XML字符串结合xsl得到转换后的HTML字符串?

[stuhome]

我是这样创建XML字符串的。
public string GetXMLString()
{
dt=conn.GetDs("select * from _test").Tables[0];
//处理pi.xml

XmlDocument xd=new XmlDocument();
xd.LoadXml("<data/>");

foreach(DataRow dr in dt.Rows)
{
XmlElement xe=xd.CreateElement("item");
foreach(DataColumn dc in dt.Columns)
{
xe.SetAttribute(dc.ColumnName,Convert.ToString(dr[dc]));
}
xd.DocumentElement.AppendChild(xe);
return xd.InnerXml;
}
}
如果要生成HTML的字符串比如"<table><tr>…………"我该怎么做呢？(XSL文档我已正常创建)

[saucer]

XslTransform xslt = new XslTransform();
Xslt.Load(someStylesheet);

StringWriter fs = new StringWriter();
Xslt.Transform(xd, null, fs, null);

fs.Close();
string s = fs.ToString();

[billok]

string filename = Request.QueryString["filename"].ToString();
filename = filename.Substring(1,(filename.Length-2)); XPathDocument _SourceXml= new XPathDocument(Server.MapPath(filename));

XslTransform _Transform = new XslTransform();
_Transform.Load(Server.MapPath("xsl\\XSLTNews1.xslt"));

_Transform.Transform(_SourceXml,null,Response.Output,null);

[stuhome]

好像不行啊
提示：“System.Xml.Xsl.XslTransform.Load(System.Xml.XPath.IXPathNavigable)”已过时:“You should pass evidence to Load() method”