asp.net post 没有事件响应！高手，专家来

libinlink 2010-03-29 10:40:53

class Program
{
static void Main(string[] args)
{
string url = "http://localhost:63527/AutoPost/Default.aspx";
string data = "TextBox1=red&TextBox2=empty&Button1=clicked";

string vs = "/wEPDwULLTExNTc2NTI3OTlkZJzeeKml7aOumj+ZNNWKyehf/JG7";
string ev = "/wEWBALPrra8BALs0bLrBgLs0fbZDAKM54rGBqhY2BGeniakCaDh0LY7ra9v+V6t";

vs = HttpUtility.UrlEncode(vs);
ev = HttpUtility.UrlEncode(ev);

data += "&__VIEWSTATE=" + vs + "&__EVENTVALIDATION=" + ev;
byte[] buffer = Encoding.Unicode.GetBytes(data);

HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
req.Method = "POST";
req.ContentType = "application/x-www-form-urlencoded";
req.ContentLength = buffer.Length;

Stream reqst = req.GetRequestStream();
reqst.Write(buffer, 0, buffer.Length);
reqst.Flush();
reqst.Close();

Console.WriteLine(" send the request over.");

HttpWebResponse res = (HttpWebResponse)req.GetResponse();
Stream resst = res.GetResponseStream();
StreamReader sr = new StreamReader(resst);

Console.WriteLine("\nGrabbing HTTP response:\n");
Console.WriteLine(sr.ReadToEnd());
sr.Close();
resst.Close();

Console.WriteLine("Done.3");
Console.Read();

}
}
我给一个页面发送了post请求，但是没有响应按钮Button1的事件，Textbox1的value值也没被赋予red.
我发送的post消息已经包含了正确的 "&__VIEWSTATE=" + vs + "&__EVENTVALIDATION=" + ev;
为什么我捕获的响应字符串，好像是第一次加载页面的值

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><title>
auto post
</title></head>
<body>
<h3>color commenter</h3>
<form name="form1" method="post" action="Default.aspx" id="form1">
<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwULLTExNTc2NTI3OTlkZJzeeKml7aOumj+ZNNWKyehf/JG7" />

<input type="hidden" name="__EVENTVALIDATION" id="__EVENTVALIDATION" value="/wEWBALPrra8BALs0bLrBgLs0fbZDAKM54rGBqhY2BGeniakCaDh0LY7ra9v+V6t" />
<p>
enter color：</p>
<input name="TextBox1" type="text" id="TextBox1" />
<p>
my commnet：</p>
<input name="TextBox2" type="text" id="TextBox2" />
<p>
<input type="submit" name="Button1" value="Send" id="Button1" /></p>
</form>
</body>
</html>
为什么Textbox1没有被赋予red，也没响应Button1的Click事件！

我使用的vs2008. .net framework3.5建立的测试网页Default.aspx!

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cpp2017 2010-03-29

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  string url = " http://localhost:1925/WebForm1.aspx";

            string data = "TextBox1=123&TextBox2=bbbbbbbb&Button1=Button";



            string vs = "/wEPDwULLTE1OTg1NDYyNDZkZCGOa/w0BH7Cs9LGH2qS3FL67tzp";

            string ev = "/wEWBAK18471BwLs0bLrBgKM54rGBgLs0fbZDHqUBuWM1RQZNNSGQxX0Vz3+amFh";

            vs = HttpUtility.UrlEncode(vs);

            ev = HttpUtility.UrlEncode(ev);



                data += "&__VIEWSTATE=" + vs + "&__EVENTVALIDATION=" + ev;



            CookieContainer cook = new CookieContainer();

            string HTML = getHTMLByUrlCook(url, ref cook, "POST", data, true, System.Text.Encoding.UTF8);

            Console.Write(HTML);







 public string getHTMLByUrlCook(string url, ref System.Net.CookieContainer cook, string sMethod, string Param, bool bAutoRedirect, System.Text.Encoding ecode)

        {

            sMethod = sMethod.ToUpper();

            sMethod = sMethod != "POST" ? "GET" : sMethod;

            string res = "";

            HttpWebRequest re = (HttpWebRequest)HttpWebRequest.Create(url);

            re.CookieContainer = cook; // attach the cook object 

            re.Method = sMethod;

            re.AllowAutoRedirect = bAutoRedirect;

            re.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; MyIE2; .NET CLR 1.1.4322)";





         

            re.Referer = url;

            if (sMethod == "POST")		 // Post data to Server

            {

                re.ContentType = "application/x-www-form-urlencoded";

                Byte[] b = ecode.GetBytes(Param);

                re.ContentLength = b.Length;

                try

                {

                    Stream oSRe = re.GetRequestStream();

                    oSRe.Write(b, 0, b.Length);

                    oSRe.Close();

                    oSRe = null;

                }

                catch (Exception)

                {

                    re = null;

                    return "-1";

                }

            }



            HttpWebResponse rep = null;

            Stream oResponseStream = null;

            StreamReader oSReader = null;

            try

            {

                rep = (HttpWebResponse)re.GetResponse();



                oResponseStream = rep.GetResponseStream();

                oSReader = new StreamReader(oResponseStream, ecode);

                res = oSReader.ReadToEnd();

            }

            catch (System.Net.WebException e)

            {

                //res ="-1";



                res = e.ToString();

            }



            if (rep != null)

            {

                rep.Close();

                rep = null;

            }

            if (oResponseStream != null)

            {

                oResponseStream.Close();

                oResponseStream = null;

            }



            if (oSReader != null)

            {

                oSReader.Close();

                oSReader = null;

            }

            re = null;



            return res;



        }