Issue with Base64-encoded parameter in query string

Question

I\'m sending a link in my web application to users mails (for confirming user registration) as the following :

Answer 1

You can send your value by replacing two char + to _ and / to -:

string confirm=confirm.Replace('+', '_').Replace('/', '+');


http://localhost:2817/ConfirmRegistration?confirm=@confirm

and you can get your data in server side by using:

if (Request.QueryString["confirm"] != null && Request.QueryString["confirm"].ToString() != "")
{
       string confirm = HttpUtility.HtmlDecode(Request.QueryString["confirm"]).Replace('_', '+').Replace('-', '/');
}