protected void btnviewbranch_Click(object sender, EventArgs e)
        {
            if (drpbranch.SelectedIndex == 0)
            {
                lblmsg.Text          = "Select Branch !!";
                lblmsg.ForeColor     = System.Drawing.Color.Red;
                GridView1.DataSource = null;
                GridView1.DataBind(); MultiView1.ActiveViewIndex = -1;
            }
            else
            {
                List <Book> _BookList = new List <Book>();
                _BookBL              = new BookBL();
                _BookList            = _BookBL.BL_BOOK_Select_BY_Branch(drpbranch.SelectedItem.Text);
                GridView1.DataSource = _BookList;
                GridView1.DataBind();
                lblmsg0.Text = GridView1.Rows.Count.ToString() + " - Records Found.";

                MultiView1.ActiveViewIndex = 0;
            }
        }