c# – Duplicate files when uploading in ASP.NET MVC

Question:

I have the following code which I use to register images and pdf's, the problem is that until now when I register for example two different images it saves me 1 but 2 times. And in the case of the PDF what I want is that I save only one for the images that I upload. When registering them, I save the URL of both the images and the pdf.

The <input> I use for images is a multiple .

public ActionResult Insertar_Datos(string Pais, string fecAct, string fecVen, string tituloLanzamiento, string nombreBanner, HttpPostedFileBase urlImg, HttpPostedFileBase urlPdf)
        {
            for(int i = 0; i<Request.Files.Count; i++)
            {
                HttpPostedFileBase file = Request.Files[i];
                if (file.ContentLength > 0) 
                { 
                    string ruta = Request.MapPath("Imagenes_Landing/");
                    Random r = new Random();
                    int numero = r.Next(5, 10000000);
                    nombreBanner = nombreBanner.Replace(" ", "_");
                    if (Directory.Exists(ruta) == false)
                    Directory.CreateDirectory(ruta);
                    string archivo = Path.GetFileName(urlImg.FileName);
                    string extension = Path.GetExtension(archivo);
                    archivo = archivo.Substring(archivo.LastIndexOf(".") + 1).ToLower();
                    archivo = "Imagen_" + numero + '_' + Pais + extension;
                    urlImg.SaveAs(ruta + archivo);
                    string urlImgen = "/Home/Imagenes_Landing/" + archivo;
                    nombreBanner = nombreBanner.Replace("_", " ");

                    ///////////// GUARDADO DE PDFs
                    string rutaPDF = Request.MapPath("PDFs_Landing/");
                    Random ra = new Random();
                    int numeroP = r.Next(5, 10000000);
                    tituloLanzamiento = tituloLanzamiento.Replace(" ", "_");
                    if (Directory.Exists(rutaPDF) == false)
                        Directory.CreateDirectory(rutaPDF);
                    string documento = Path.GetFileName(urlPdf.FileName);
                    string extensionP = Path.GetExtension(documento);
                    documento = documento.Substring(documento.LastIndexOf(".") + 1).ToLower();
                    documento = "Documento_" + numeroP + '_' + Pais + extensionP;
                    string urlPDF = "/Home/PDFs_Landing/" + documento;
                    urlPdf.SaveAs(rutaPDF + documento);
                    nombreBanner = nombreBanner.Replace("_", " ");


                ViewBag.Message = ManejoDatos.AgregarRegistro_LandingPage("Amairani Fernanda Rodriguez", Pais, fecAct, fecVen, tituloLanzamiento, nombreBanner, urlImgen, urlPDF );
                }

            }
                    return RedirectToAction("NuevosLanzamientos", "Home");
        }

What I am looking for is that if I upload 4 images, they are all different, not the same and with the pdf that I do not duplicate it but it is 1 pdf for the 4 images

If someone could help me, I would be very grateful: D

Answer:

In case someone ever needs it, it was resolved as follows:

In the controller a method was created to register the PDF and it was called in my method where the images are registered.

[HttpPost]
        public string InsertarPDF(HttpPostedFileBase urlPdf, string tituloLanzamiento, string Pais)
        {
            string rutaPDF = Request.MapPath("PDFs_Landing/");
            Random ra = new Random();
            int numeroP = ra.Next(5, 10000000);
            tituloLanzamiento = tituloLanzamiento.Replace(" ", "_");
            if (Directory.Exists(rutaPDF) == false)
                Directory.CreateDirectory(rutaPDF);
            string documento = Path.GetFileName(urlPdf.FileName);
            string extensionP = Path.GetExtension(documento);
            documento = documento.Substring(documento.LastIndexOf(".") + 1).ToLower();
            documento = "Documento_" + numeroP + '_' + Pais + extensionP;
            string urlPDF = "/Home/PDFs_Landing/" + documento;
            urlPdf.SaveAs(rutaPDF + documento);


            //nombreBanner = nombreBanner.Replace("_", " ");
            return urlPDF;

        }
        public ActionResult Insertar_Datos(string Pais, string fecAct, string fecVen, string tituloLanzamiento,
             IEnumerable<HttpPostedFileBase> urlImg, HttpPostedFileBase urlPdf)
        {
            string urlPDF = InsertarPDF(urlPdf, tituloLanzamiento, Pais);
            foreach(HttpPostedFileBase file in urlImg)
            {

                    string ruta = Request.MapPath("Imagenes_Landing/");
                    Random r = new Random();
                    int numero = r.Next(5, 10000000);
                    //nombreBanner = nombreBanner.Replace(" ", "_");
                    if (Directory.Exists(ruta) == false)
                    Directory.CreateDirectory(ruta);
                    string archivo = Path.GetFileName(file.FileName);
                    string extension = Path.GetExtension(archivo);
                    archivo = archivo.Substring(archivo.LastIndexOf(".") + 1).ToLower();
                    archivo = "Imagen_" + numero + '_' + Pais + extension;
                    file.SaveAs(ruta + archivo);
                    string urlImgen = "/Home/Imagenes_Landing/" + archivo;

                    ViewBag.Message = ManejoDatos.AgregarRegistro_LandingPage("Amairani Fernanda Rodriguez", Pais, fecAct, fecVen, tituloLanzamiento,
                                    urlImgen, urlPDF);
                }


                    return RedirectToAction("NuevosLanzamientos", "Home");
        }

In the method called Insert_Data, a list was created for the images, and traversing it with the foreach.