Sunday, March 9, 2014

Prevent Browser Back Option

Use this following code to prevent the web browsers Back button options.

This will forward to the last history page.

Tuesday, March 4, 2014

How to send HTTPS Post Request with C#

  • Create new C# website application.
  • Open the default code behind file i.e. Default.aspx.cs
  • add the following two namespace
    using System.Security.Cryptography.X509Certificates;
    using System.Net;
For the https request we have to create a CertificatePolicy  subclass which is

public class MyPolicy : ICertificatePolicy
    public bool CheckValidationResult(ServicePoint srvPoint,
      X509Certificate certificate, WebRequest request,
      int certificateProblem)
        //Return True to force the certificate to be accepted.
        return true;

Now go to the page load event and paste the following code.
protected void Page_Load(object sender, EventArgs e)
        System.Net.ServicePointManager.CertificatePolicy = new MyPolicy(); 
       // this is CertificatePolicy  subclass
            string url = "";
            HttpWebRequest req=(HttpWebRequest)WebRequest.Create(url);
            req.KeepAlive = false;
            req.AllowAutoRedirect = true;
            req.ProtocolVersion = HttpVersion.Version10;
            req.Method = "POST";
            req.ContentType = "application/x-www-form-urlencoded";
            byte[] postBytes = Encoding.ASCII.GetBytes("username=sample_post_data");
            req.ContentType = "application/x-www-form-urlencoded";
            req.ContentLength = postBytes.Length;
            Stream requestStream = req.GetRequestStream();
            requestStream.Write(postBytes, 0, postBytes.Length);

            HttpWebResponse response = (HttpWebResponse)req.GetResponse();
            Stream resStream = response.GetResponseStream();

            var sr = new StreamReader(response.GetResponseStream());
            string responseText = sr.ReadToEnd();
        catch (Exception ee)

If you want to convert the response test to xml, then add the xml namespace as using System.Xml; then add the following code below the responseText as
XmlDocument doc = new XmlDocument();
Now you can use this xml result according to your requirement.