Editing query string collection and reflection it on address without redirection

Hi , I have the gridview with two records,on clicking on those selectable row,details will be displayed in another gridview. I am redirecting to this page from another page with query string passing id's. Issue is if click on second record on summary grid ,query string should be updated accordingly. On clicking gridview row,post back is happening and I am able to edit the query string. What I want is it should be reflected immediately in URL. I don't need response.redirect. Is there way do it using query or JavaScript after completion of post back? <br> <br> <br> // Get the protected &quot;IsReadOnly&quot; property of the collection<br> System.Reflection.PropertyInfo prop = Request.QueryString.GetType()<br> .GetProperty(&quot;IsReadOnly&quot;, System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);<br> <br> ...