思路：模拟数据提交，分析回发数据，提取结果。
我们先看这个网站，
http://www.developerfusion.com/tools/convert/csharp-to-vb/ 【Convertor】
打开 【Convertor】 的站点，使用firebug 或 httpwatch 分析出post 数据，这里请参考如下代码：
AutomaticClipboard=ture&AutomaticClipboard=false&Code=" + code
上一行代码很重要，目的是为了模拟提交数据， 再看这行，
StreamReader responseStream = new StreamReader(request.GetResponse().GetResponseStream());
这行代码目的是得到回发数据，好了，其他就不多说了，贴代码：
CONVERTOR
<%@ Page Language="C#" ValidateRequest="false" %>
<%@ Import Namespace="System.Net" %>
<%@ Import Namespace=" System.IO" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
protected void btnConvert_Click(object sender, EventArgs e)
{
string url = "http://www.developerfusion.com/tools/convert/csharp-to-vb/";
WebRequest request = HttpWebRequest.Create(url);
request.Method = "post";
string code = txtCode.Text.Trim();
request.ContentType = "application/x-www-form-urlencoded";
string postedData = "AutomaticClipboard=ture&AutomaticClipboard=false&Code=" + code;
byte[] requestContent = System.Text.Encoding.ASCII.GetBytes(postedData);
request.ContentLength = requestContent.Length;
Stream requestStream = request.GetRequestStream();
requestStream.Write(requestContent, 0, requestContent.Length);
//read the response;
StreamReader responseStream = new StreamReader(request.GetResponse().GetResponseStream());
string response = responseStream.ReadToEnd();
responseStream.Close();
int firstdiv = response.IndexOf("<ul", response.IndexOf("code-view"));
int lastdiv = response.IndexOf("</ul>", firstdiv);
string result = response.Substring(firstdiv, lastdiv - firstdiv);
ltlResult.Text = result;
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="txtCode" runat="server" Height="204px" TextMode="MultiLine" Width="586px"></asp:TextBox>
<br />
<asp:Button ID="btnConvert" runat="server" OnClick="btnConvert_Click" Text="Convert" />
<br />
<asp:Literal ID="ltlResult" runat="server"></asp:Literal>
</div>
</form>
</body>
</html>当然其实网上还有有很多C#和VB.NET互转工具：
http://labs.developerfusion.co.uk/convert/csharp-to-vb.aspx
http://www.codechanger.com/
http://www.dotnetspider.com/convert/Vb-To-Csharp.aspx
http://www.kamalpatel.net/
http://csharpconverter.claritycon.com
http://www.ragingsmurf.com/
http://aspalliance.com/
http://developerfusion.com/
www.icsharpcode.com
http://blogs.msdn.com/goto100/archive/2008/07/23/converting-from-c-to-visual-basic-net.aspx
当然你有更好的方法也可以告知，谢谢了先！
