How to retain query string value when page is refresh

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HI,
when redirecting to page i am passing two query string value.I have home button in redirected page when i click on it i am redirecting to same page but i am loosing query string value.
can any one help me to solve it

What I have tried:

C#

protected void home_ServerClick(object sender, EventArgs e)
        {
            // var nameValues = HttpUtility.ParseQueryString(Request.QueryString.ToString());
         //   string url = Request.Url.AbsolutePath;
        int    userid = Convert.ToInt32(Decrypt(HttpUtility.UrlDecode(Request.QueryString["u"])));
        string salt = Decrypt(HttpUtility.UrlDecode(Request.QueryString["s"])).ToString();

        string u = HttpUtility.UrlEncode(Encrypt(userid.ToString()));
        string s = HttpUtility.UrlEncode(Encrypt(salt));
           // Response.Redirect(url + "?" + nameValues);

       //   Response.Redirect("kgis.aspx?u=" + u + "&s=" + s);

        string url = HttpContext.Current.Request.Url.AbsoluteUri;

        string[] separateURL = url.Split('?');
        NameValueCollection queryString = System.Web.HttpUtility.ParseQueryString(separateURL[1]);
        queryString["u"] = u;
        queryString["s"] = s;
        url = separateURL[0] + "?" + queryString.ToString();
        Response.Redirect(url);
        }

Posted 4-Dec-16 22:29pm

Veena Hosur

Updated 5-Dec-16 13:14pm

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Comments

$*Developer - Vaibhav*$ 5-Dec-16 4:52am

Please share designer code & also check which event u r calling?

preety sunita 5-Dec-16 7:28am

If you are getting query string values for 'u' and 's' variable then it should be redirected from there..?? Is there any exception coming when plain response.redirect code is using by you..?

ZurdoDev 5-Dec-16 7:50am

1. You don't need to urldecode Request.QueryString. It already does it for you. You can mess up certain characters decoding twice.
2. This is very simple. Get the query string values and then add them to the url you want to go to. Where is the problem?

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Nayan Ambaliya · Answer 1 · 2016-12-05T13:14:00

Solution 1

I suggest when your redirected page loads, change the href attribute of the home button to include the query string which is passed to the page. You can do this using jQuery as;

JavaScript

var urlValue = window.location.href;
$('#homebutton').attr('href',urlValue);

Posted 5-Dec-16 13:14pm

Nayan Ambaliya

Comments

David A. Gray 31-Jan-23 0:31am

Thank you for inspiring the solution that I needed to a similar issue.