网格视图不显示，数据不保存在数据库中

我将文件上传到我的目录，现在成功了，我想获取文件名和路径以显示在我的网格视图中，并仅保存数据库的路径...我的问题是我的网格视图没有显示在我的网页上，并且数据库中没有保存任何内容，请帮助！

protected void Button2_Click(object sender, EventArgs e)
    {
        if (FileUpload1.PostedFile != null)
        {
            string FileName = FileUpload1.PostedFile.FileName.ToString();
            FileUpload1.SaveAs(Server.MapPath("file_folder/" + FileUpload1.PostedFile.FileName));
            string strconString = System.Configuration.ConfigurationManager.ConnectionStrings["ToolkitdbConnectionString"].ConnectionString;
            SqlConnection con = new SqlConnection(strconString);
            string strQuery = "insert into FileInfo (FileName, FilePath) values(@FileName, @FilePath)";
            SqlCommand cmd = new SqlCommand(strQuery);
            cmd.Parameters.AddWithValue("@FileName", FileName);
            cmd.Parameters.AddWithValue("@FilePath", "file_folder/" + FileName);
            cmd.Connection = con;
            con.Open();
            string[] filespaths = Directory.GetFiles(@"C:'NectarSoft'Projects'Nectarsofttoolkit'Nectarsofttoolkit'file_folder");
            Response.Write("Upload successfull");
            GridView1.DataBind();