The remote server returned an error: (500) Internal Server Error

Question

User-253463745 posted

Hi

  String strUrl = "http://catalogues.cataloguecentral.com.au/global/search/search.aspx?";     

        // Create a request using a URL that can receive a post.
        WebRequest request = WebRequest.Create(strUrl);
        // Set the Method property of the request to POST.
        request.Method = "POST";
        // Create POST data and convert it to a byte array.
        string postData = "query_xml=<?xml version='1.0' encoding='utf-8' ?><search_xml><search before='25' after='25'><![CDATA[jacket]]> ...Blah Blah";
      //  postData = postData.Replace((char)39, (char)34);
       PostXml(strUrl, postData);


     //   postData = postData.Replace("\\\", string.Empty);
        //string postData = "?query_xml=" + getXMLString();
        //postData = HttpUtility.UrlEncodeToBytes (postData);
        byte[] byteArray = Encoding.UTF8.GetBytes(postData); //Encoding.UTF8.GetBytes(postData);
        // Set the ContentType property of the WebRequest.
        request.ContentType = "application/x-www-form-urlencoded";
        // Set the ContentLength property of the WebRequest.
        request.ContentLength = byteArray.Length;
        // Get the request stream.
        Stream dataStream = request.GetRequestStream();
        // Write the data to the request stream.
        dataStream.Write(byteArray, 0, byteArray.Length);
        // Close the Stream object.
        dataStream.Close();
        // Get the response.
        WebResponse response = request.GetResponse(); // Getting Error Here
        // Display the status.
        Console.WriteLine(((HttpWebResponse)response).StatusDescription);
        // Get the stream containing content returned by the server.
        dataStream = response.GetResponseStream();
        // Open the stream using a StreamReader for easy access.
        StreamReader reader = new StreamReader(dataStream);
        // Read the content.
        string responseFromServer = reader.ReadToEnd();
        // Display the content.
        Console.WriteLine(responseFromServer);
        // Clean up the streams.
        reader.Close();
        dataStream.Close();
        response.Close();

 

  Above code was breaking at  WebResponse response = request.GetResponse(); 

( I have tried by pasting http://catalogues.cataloguecentral.com.au/global/search/search.aspx?query_xml=<?xml version='1.0' encoding='utf-8' ?><search_xml><search before='25' after='25'><![CDATA[jacket]]> ...Blah Blah" in Internet explorer and Firefox, It's returning an xml file so no problems with security I have given full rights to this directory)

  Any Idea why it's breaking

 

Thanks

 

 

 

 

Answer 1

User1712388314 posted

If you can not debug a server method on search.aspx - just set customErrors element in web.config to Off - server will return an error's full description.

Answer 2

User-253463745 posted

 Thanks for your Reply

    As I mentioned before my code was breaking at   // Get the response.
        WebResponse response = request.GetResponse(); // Getting Error Here

 we are using third parties search.aspx, The old classic ASP pages are using similar method and working fine. In .net I am getting this error

 The remote server returned an error: (500) Internal Server Error 

I can't see what is search.aspx because that is out of my scope, I have to pass querystring as xml (search string) and it will returns xml (search result) When I test by copy paste on the browser it works fine i don't why above code was breaking

Any help 

 

Answer 3

User-1136466523 posted

Hi,

From your description, it seems that you met error while requesting that url in your asp.net code, right?

If so, i think you need to check your application step by step, and try to check the exact url your application is requesting.

Thanks.

Answer 4

User-253463745 posted

 Thanks for your reply

   I have tried the same string (url) in my code, still i am getting the same error. Any help

 

Thanks

Answer 5

User-253463745 posted

 

 finally i figured out the problem, The error is coming from third party they are still using asp script instead .net

 

Thanks

Answer 6

User-253463745 posted

 This is the code that has been solved my problem

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Net;
using System.IO;
using System.Text;
using System.Xml;
using System.Collections.Generic;

 

 private void GetResponseAsString(string postData, int timeout)
    {

    // Create a request using a URL that can receive a post.
        HttpWebRequest webRequest = (HttpWebRequest)System.Net.WebRequest.Create(postData);
        // Set the Method property of the request to POST.
        webRequest.Headers.Clear();
        webRequest.AllowAutoRedirect = true;
        webRequest.Timeout = 1000 * timeout;
        webRequest.PreAuthenticate = true;
        webRequest.ContentType = "application / x - www - form - urlencoded";
        webRequest.Credentials = CredentialCache.DefaultCredentials;
        webRequest.UserAgent = "Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)";
        webRequest.Timeout = 150000;
        // Create POST data and convert it to a byte array.

        WebResponse webResponse = null;
        StreamReader objSR;
        System.Text.Encoding encode = System.Text.Encoding.GetEncoding("utf-8");
        Stream objStream;
        string sResponse;

        webResponse = (HttpWebResponse)webRequest.GetResponse();
        objStream = webResponse.GetResponseStream();
        objSR = new StreamReader(objStream, encode, true);
        //<<sResponse doesn't contain Unicode char values>>
        sResponse = objSR.ReadToEnd();
       Response.write(sReponse);  // OR Response.write(HttpUtility.HtmlEncode(sResponse))

  

}