protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                if (Request.QueryString["id"] != null)
                {
                    AuthorEntity author = new AuthorEntity();
                    author = AF.GetAuthorByAuthorID(Convert.ToInt32(Request.QueryString["id"]));

                    txtAuthorName.Text      = author.AutherName;
                    txtEmail.Text           = author.AutherEmail;
                    txtContact.Text         = author.AutherConatct;
                    Session["AuthorEditId"] = author.AuthorId;
                    btnSaveAuthor.Text      = "Update";
                }
                if (Request.QueryString["did"] != null)
                {
                }
            }
        }