How to pass 2 values id in to the next page using query string in asp.net?

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Gridview

ASP.NET5

Hi searched in the internet bt nothing works fine for me please help me.. i am binding some values in a terlik grid. values are site name and point name .here i want pass the ids of this 2 values(siteid,pointid)to the second page.aspx when a button is clicked. but that should not be displayed .using responce .redirect how can i send those ids ids are coming from d database itself.pls look up my code

i want to send these ids to the next page

<table width="100%">
            <tr>
                <td style="width: 100%;">
                    &lt;telerik:RadGrid ID="grdPointSearch"  runat="server"  AutoGenerateColumns="False"  EnableEmbeddedSkins="False" EnableHeaderContextFilterMenu="True" EnableHeaderContextMenu="True" Height="121px" Skin="NGN_Grid" Width="100%"&gt;
                     
                        <mastertableview autogeneratecolumns="False" clientdatakeynames="sitename" datakeynames="sitename,pointname">
                            <columns>
                               
                                
                                <telerik:gridboundcolumn datafield="SiteName" headertext="Site Name" itemstyle-cssclass="fntn fntrd tal" readonly="true" uniquename="SiteCode" xmlns:telerik="#unknown">
                                </telerik:gridboundcolumn>
                                <telerik:gridboundcolumn datafield="PointName" headertext="Point Name" itemstyle-cssclass="fntn fntrd tal" readonly="true" uniquename="PointName" xmlns:telerik="#unknown">
                                </telerik:gridboundcolumn>
                                
                               <telerik:gridboundcolumn uniquename="PointId" datafield="PointId" display="false" xmlns:telerik="#unknown"> </telerik:gridboundcolumn>
                                <telerik:gridboundcolumn uniquename="SiteId" datafield="SiteId" display="false" xmlns:telerik="#unknown"> </telerik:gridboundcolumn>

                               

                          <telerik:gridtemplatecolumn uniquename="TemplateColumn" headertext="Responce" xmlns:telerik="#unknown">
                       <itemtemplate>
                           <table>
                               <tr>
                               </tr>
                               <tr>
                                   <td>
                                       &lt;telerik:RadButton ID="btnviewdtls"  runat="server" ButtonType="LinkButton" Text="View Details"
                                           CommandName="Button1Click" /&gt;
                                   </td>
                                  


                             
                            </tr></table></itemtemplate></telerik:gridtemplatecolumn></columns>
                        </mastertableview>
                        <clientsettings>
                            <clientevents />
                        </clientsettings>
                    
                </td>
            </tr>
        </table>


////clikevent

  protected void ViewDetail_Click(object sender, EventArgs e)
        {
            ////Response.Redirect("SPMPointDetails.aspx", false);

            Response.Redirect("/SPMPointDetails.aspx?" +Siteid,pointid );
        }

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