Getting Parameter From Encoded Link ASP.NET ?

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I have to get a parameter from an encoded link .

The first format of link is like : About.aspx?parameter=bla

But because of a requirement the link is sended to the user like

About.aspx?parameter%3Dbla

From the link About.aspx?parameter%3Dbla , I should get the parameter(bla).
When I try to get parameter normally with
Request.QueryString["parameter"] or HttpContext.Current.Request["parameter"] , they returns null.

Thanks for the replies in advance..

Posted 4-Oct-12 4:50am

no_-_namee

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n.podbielski 4-Oct-12 11:12am

What are the keys of query string?

no_-_namee 4-Oct-12 12:45pm

I am working on a project to just see if it is possible to get parameter from the encoded link.On the solution , I am getting an input from textbox and send it to the link..

2 solutions

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fjdiewornncalwe · Answer 1 · 2012-10-04T08:38:00

Solution 2

What has happened is that the "=" in your querystring has gotten htmlencoded into %3D. You need to fix whatever is creating this url with querystring first so that it appears properly like About.aspx?parameter=bla

Posted 4-Oct-12 8:38am

fjdiewornncalwe

Mandi Kant · Answer 2 · 2012-10-04T09:39:00

Hi,its not a proper solution but it might help you,
just hold the encoded value in temp and then again decode it and use that query string value as you want to use:

C#

public partial class About : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        var myString = "parameter=\"bla\"";
        var base64EncodedString = Convert.ToBase64String(ASCIIEncoding.ASCII.GetBytes(myString));
        Response.Redirect("Default.aspx?temp=" + base64EncodedString);
    }
}

now code for Default.aspx.cs page:
---------------------------------------

C#

public partial class _Default : System.Web.UI.Page
  {
      protected void Page_Load(object sender, EventArgs e)
      {
          var originalString = ASCIIEncoding.ASCII.GetString(Convert.FromBase64String(Request.QueryString["temps"]));
          lblShowName.Text = Request.QueryString["parameter"];
      }
  }