how to use a button present in other page's gridview

// In xyz.aspx page....
string url = "abc.aspx?chkId=" + chk.SelectedItem.Value;
Response.Redirect(url);

// In abc.aspx page....

protected void grv1_RowItemCreated(object sender, GridViewRowEventArgs e)
{
int i = Convert.ToInt32(Request.QueryString["chkId"]);

//Do Something....

}