Question

I need to send a redirect url as a query string parameter,
unfortunately this url contains more than one querystring parameter as follows

“http://host:port/page2.aspx?param1=value&param2=value&param3=value”

the problem is when I encode this url and send it via querystring , it looks as if it wasn’t encoded , so my application consider the redirect url parameter value to be only

“http://host:port/page2.aspx?param1=value”

and consider

“&param2=value&param3=value”

as a part of the current url

I tried Server.UrlEncode
and Server.HtmlEncode

Answer 1

string myUrl = “http://host:port/page2.aspx?param1=value&param2=value&param3=value”;

string EncodedUrl = myUrl.EncodeTo64();

Pass this as querystring and retrieve using :

    EncodedUrl.DecodeFrom64();

Functions:

public static string EncodeTo64(this string target)
    {

        byte[] toEncodeAsBytes

              = System.Text.ASCIIEncoding.ASCII.GetBytes(target);

        string returnValue

              = System.Convert.ToBase64String(toEncodeAsBytes);

        return returnValue;

    }

public static string DecodeFrom64(this string target)
    {

        byte[] encodedDataAsBytes

            = System.Convert.FromBase64String(target);

        string returnValue =

           System.Text.ASCIIEncoding.ASCII.GetString(encodedDataAsBytes);

        return returnValue;

    }