Response.Redirect with querystring

Question

This is a simple question but I was wondering how to do this. I have a gridview that has a list of customers and in the gridview there is a linkbutton as a template field that says view cart. In the onclick method I have

Response.Redirect("~/Cart.aspx?ID=" + Request.QueryString["ID"]);

On the cart aspx page I have another gridview that I want it to display just the items in that customers specific cart. This gridview has a querystring parameter

            <SelectParameters>
            <asp:QueryStringParameter Name="ID" QueryStringField="ID" Type="String" />
        </SelectParameters>

However rightnow, nothing is showing up in the gridview for the cart. How can I achieve my goal?

Answer 1

 var routeValuesDictionary = new RouteValueDictionary();
foreach (var key in Request.QueryString.AllKeys)
{
    routeValuesDictionary.Add(key, Request.QueryString[key]);
}
return RedirectToAction("ActionName", "Controller", new RouteValueDictionary(routeValuesDictionary));