protected void btnadd_Click(object sender, EventArgs e)
        {
            int result = 0;

            _BookBL = new BookBL();
            if (FileUpload1.HasFile)
            {
                FileUpload1.SaveAs(Server.MapPath("~/Book/") + FileUpload1.FileName);

                result = _BookBL.BL_Book_Insert(txtbname.Text, txtauthor.Text, txtdetail.Text, (txtprice.Text), drppublication.SelectedItem.Text, drpbranch.SelectedItem.Text, (txtqnt.Text), txtqnt.Text, "0", "~/Book/" + FileUpload1.FileName.ToString());


                if (result != 0)
                {
                    lblmsg.Text                  = "Book Added Successfullly !!";
                    txtauthor.Text               = "";
                    txtbname.Text                = "";
                    txtdetail.Text               = "";
                    txtprice.Text                = "";
                    txtqnt.Text                  = "";
                    drpbranch.SelectedIndex      = 0;
                    drppublication.SelectedIndex = 0;
                    txtbname.Focus();
                }
            }
            else
            {
                lblmsg.Text = "Please, Select Book Image First !!";
            }
        }