how to read content from webpage

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C#

I want to access a webpage & store the contents of the webpage into a database this is the code I have tried for reading the contents of the webpage

public static WebClient wClient = new WebClient();
   public static TextWriter textWriter;
   public static String readFromLink()
   {
     string url = "http://www.ncedc.org/cgi-bin/catalog-search2.pl";
       HttpWebRequest webRequest = WebRequest.Create(url) as HttpWebRequest;
       webRequest.Method = "POST";
       System.Net.WebClient client = new System.Net.WebClient();
       byte[] data = client.DownloadData(url);
       string html = System.Text.Encoding.UTF8.GetString(data);
       return html;
   }
   public static bool WriteTextFile(String fileName, String t)
   {

       try
       {
           textWriter = new StreamWriter(fileName);
       }
       catch (Exception)
       {
           return false;
           Console.WriteLine("Data Save Unsuccessful: Could Not create File");
       }

       try
       {
           textWriter.WriteLine(t);
       }
       catch (Exception)
       {
           return false;
           Console.WriteLine("Data Save UnSuccessful: Could Not Save Data");
       }
       textWriter.Close();
       return true;
       Console.WriteLine("Data Save Successful");
   }
   static void Main(string[] args)
   {
       String saveFile = "E:/test.txt";
       String reSultString = readFromLink();
       WriteTextFile(saveFile, reSultString);
       Console.ReadKey();
   }

but this code gives me an o/p as- This script should be referenced with a METHOD of POST. REQUEST_METHOD=GET

please tell me how to resolve this