how to linbutton's text on another page button click event

this is my code on webform1.aspx
<asp:GridView ID="GridView1" runat="server" Width="100%" SkinID="GridView"
OnSorting="GridView1_Sorting" OnDataBound="GridView1_DataBound"
OnRowDataBound="GridView1_RowDataBound" AutoGenerateColumns="false"
OnPageIndexChanging="OnPaging" ShowHeader="true" AllowPaging="True"
ShowHeaderWhenEmpty="True" AllowSorting="True"
onrowcommand="GridView1_RowCommand" PageSize="20">

<asp:TemplateField ItemStyle-HorizontalAlign="left" ItemStyle-VerticalAlign="Top">
<HeaderTemplate>Action</HeaderTemplate>
<HeaderStyle />

<asp:LinkButton ID="lnkverify" runat="server" Text="Verify" CommandName="Application_verify" CommandArgument='<%#Eval("RequestId") %>' />    
<asp:LinkButton ID="lnkreject" runat="server" Text="Reject" CommandName="Appication_reject" CommandArgument='<%#Eval("RequestId") %>' />




on webform.aspx.cs

protectedvoid GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
        {
            try
            {
                if (e.CommandName == "Application_verify")
                {
                    int RequestId = Convert.ToInt32(e.CommandArgument);
                    Response.Redirect("~/ApplicationDetails.aspx?RequestId=" + RequestId);
                }
                if (e.CommandName == "Appication_reject")
                {
                    int RequestId = Convert.ToInt32(e.CommandArgument);
                    //Response.Redirect("?projectid=" + projectid);
                }
                
            }
            catch (ApplicationException ex)
            {
                lblsuccess.Visible = true;
                lblsuccess.Text = ex.Message;
            }
            catch (Exception ex)
            {
                StackTrace st = new StackTrace(new StackFrame(true));
                StackFrame sf = st.GetFrame(0);
 
                int line = sf.GetFileLineNumber() - 1;
                if (ex.Message.StartsWith("Thread") == false) { Response.Redirect("~/HandleError.aspx?ID=" + ex.Message, false); }
            }
        }

on Applicationdetails.aspx page i have a button control.on this button click event ,i want to change linkbutton's(this linkbutton is on webform1.aspx) text from "verify" to "verified".pls help me