// Eliminar  el ticket emitido y volver a la base de datos el libro
        public ActionResult Agregar(CAT_SOLICITUD Libro)
        {
            if (!ModelState.IsValid)
            {
                return(View());
            }

            try
            {
                using (var db = new LibrosContext())
                {
                    db.CAT_SOLICITUD.Add(Libro);
                    db.SaveChanges();
                    return(RedirectToAction("Index"));
                }
            }
            catch (Exception)
            {
                return(View());
            }
        }
        // Eliminar  los tickets emitidos
        public ActionResult Eliminar(int id)
        {
            try
            {
                using (var db = new LibrosContext())
                {
                    CAT_SOLICITUD Blibro = db.CAT_SOLICITUD.Find(id);
                    // Programacion correspondiente para crear un pdf
                    Document pdfDoc = new Document(PageSize.LETTER, 0, 0, 0, 0);

                    PdfWriter.GetInstance(pdfDoc, System.Web.HttpContext.Current.Response.OutputStream);

                    pdfDoc.Open();



                    //imagen

                    string path = Server.MapPath("/images/ulacit.png");
                    Image  logo = Image.GetInstance(path);
                    logo.SetAbsolutePosition(210f, 150f);
                    logo.ScaleAbsolute(204f, 53f);
                    pdfDoc.Add(logo);

                    // texto

                    pdfDoc.Add(new Paragraph("                                                                 ---------------Ticker Entrega--------------"));
                    pdfDoc.Add(new Paragraph("                                    "));
                    pdfDoc.Add(new Paragraph("                                     "));
                    pdfDoc.Add(new Paragraph("                                                                 ...............Datos del Entegador..............."));
                    pdfDoc.Add(new Paragraph("                                    "));
                    pdfDoc.Add(new Paragraph("                                     "));
                    pdfDoc.Add(new Paragraph("                                                          Nombre:                              " + (Blibro.nombre)));
                    pdfDoc.Add(new Paragraph("                                                          Apellidos:                           " + (Blibro.apellido1 + " " + Blibro.apellido2)));
                    pdfDoc.Add(new Paragraph("                                                          Cedula:                              " + (Blibro.cedula)));

                    pdfDoc.Add(new Paragraph("                                     "));
                    pdfDoc.Add(new Paragraph("                                                                  ...............Datos del Libro..............."));
                    pdfDoc.Add(new Paragraph("                                    "));
                    pdfDoc.Add(new Paragraph("                                     "));
                    pdfDoc.Add(new Paragraph("                                                          Nombre de Libro:                          " + (Blibro.nombrelibro)));
                    pdfDoc.Add(new Paragraph("                                                          ISBN del Libro:                             " + (Blibro.iscb)));

                    pdfDoc.Add(new Paragraph("                                    "));
                    pdfDoc.Add(new Paragraph("                                     "));
                    pdfDoc.Add(new Paragraph("                                                                  .................Datos del Prestamo................."));
                    pdfDoc.Add(new Paragraph("                                    "));
                    pdfDoc.Add(new Paragraph("                                     "));
                    pdfDoc.Add(new Paragraph("                                                        Fecha de Entrega:                   " + Blibro.fechaentrega.ToString()));
                    pdfDoc.Add(new Paragraph("                                                        Fecha de Solicitud:                  " + (Blibro.fechasoli.ToString())));                   pdfDoc.Add(new Paragraph("                                     "));
                    pdfDoc.Add(new Paragraph("                                     "));
                    pdfDoc.Add(new Paragraph("                                                                                  Biblioteca Ulacit         "));
                    pdfDoc.Add(new Paragraph("                                                                            ___________________         "));

                    pdfDoc.Close();

                    Response.ContentType = "application/pdf";

                    Response.AddHeader("content-disposition", "attatchment; filename=Reporte.pdf");
                    System.Web.HttpContext.Current.Response.Write(pdfDoc);
                    Response.Flush();
                    Response.End();
                    db.CAT_SOLICITUD.Remove(Blibro);
                    db.SaveChanges();
                    return(RedirectToAction("Index"));
                }
            }

            catch (Exception)
            {
                throw;
            }
        }