Question

Hi all i ma working on mvc4 i had uploaded single image (file) but now i need to uoload more than 100 files(images) at time to my application how could i do this plz help to do this

here my code:
this is my controllers

[HttpPost]
            public ActionResult Uploading(ImageModel model)
            {
                if (ModelState.IsValid)
                {     
                    string fileName = Guid.NewGuid().ToString();
                    string serverPath = Server.MapPath("~");
                    string imagesPath = serverPath + "Content\\Images\\";
                    string thumsise = Path.Combine(imagesPath, "Thumb" + fileName);
                    string thumbPath = Path.Combine(imagesPath, "Thu" + fileName);
                    string fullPath = Path.Combine(imagesPath, "Full" + fileName);
                    string Bigpath = Path.Combine(imagesPath, "big" + fileName);
                    string Bigpatha = Path.Combine(imagesPath, "biga" + fileName);
                    string Bigpathb = Path.Combine(imagesPath, "bigb" + fileName);
                    string Bigpathc = Path.Combine(imagesPath, "bigc" + fileName );
                    ImageModel.ResizeAndSave(thumsise, fileName, model.ImageUploaded.InputStream, 80, true);
                    ImageModel.ResizeAndSave(thumbPath, fileName, model.ImageUploaded.InputStream, 100, true);
                    ImageModel.ResizeAndSave(fullPath, fileName, model.ImageUploaded.InputStream, 500, true);
                    ImageModel.ResizeAndSave(Bigpath, fileName, model.ImageUploaded.InputStream, 200, true);
                    ImageModel.ResizeAndSave(Bigpatha, fileName, model.ImageUploaded.InputStream, 250, true);
                    ImageModel.ResizeAndSave(Bigpathb, fileName, model.ImageUploaded.InputStream, 150, true);
                    ImageModel.ResizeAndSave(Bigpathc, fileName, model.ImageUploaded.InputStream, 50, true);
                }
                return View("Upload",model);
            }

this my class file:

public class ImageModel
    {

        [Required]

        public HttpPostedFileWrapper ImageUploaded { get; set; }
        public static void ResizeAndSave(string savePath, string fileName, Stream imageBuffer, int maxSideSize, bool makeItSquare)
        {
            int newWidth;
            int newHeight;
            Image image = Image.FromStream(imageBuffer);
            int oldWidth = image.Width;
            int oldHeight = image.Height;
            Bitmap newImage;
            if (makeItSquare)
            {
                int smallerSide = oldWidth >= oldHeight ? oldHeight : oldWidth;
                double coeficient = maxSideSize / (double)smallerSide;
                newWidth = Convert.ToInt32(coeficient * oldWidth);
                newHeight = Convert.ToInt32(coeficient * oldHeight);
                Bitmap tempImage = new Bitmap(image, newWidth, newHeight);
                int cropX = (newWidth - maxSideSize) / 2;
                int cropY = (newHeight - maxSideSize) / 2;
                newImage = new Bitmap(maxSideSize, maxSideSize);
                Graphics tempGraphic = Graphics.FromImage(newImage);
                tempGraphic.SmoothingMode = SmoothingMode.AntiAlias;
                tempGraphic.InterpolationMode = InterpolationMode.HighQualityBicubic;
                tempGraphic.PixelOffsetMode = PixelOffsetMode.HighQuality;
                tempGraphic.DrawImage(tempImage, new Rectangle(0, 0, maxSideSize, maxSideSize), cropX, cropY, maxSideSize, maxSideSize, GraphicsUnit.Pixel);
            }
            else
            {
                int maxSide = oldWidth >= oldHeight ? oldWidth : oldHeight;

                if (maxSide > maxSideSize)
                {
                    double coeficient = maxSideSize / (double)maxSide;
                    newWidth = Convert.ToInt32(coeficient * oldWidth);
                    newHeight = Convert.ToInt32(coeficient * oldHeight);
                }
                else
                {
                    newWidth = oldWidth;
                    newHeight = oldHeight;
                }
                newImage = new Bitmap(image, newWidth, newHeight);
            }
            newImage.Save(savePath + fileName + ".jpg", ImageFormat.Jpeg);
            //newImage.Save(savePath + fileName + ".jpg", ImageFormat.Jpeg);
            image.Dispose();
            newImage.Dispose();
        }  
    }
}

and this is my index page:

@using (Html.BeginForm("Uploading", "Upload", FormMethod.Post, new { enctype = "multipart/form-data" }))
     {
         <input type="file" name="ImageUploaded" id="btnUpload" multiple="multiple" accept="image/*"  />
     <button type="submit"  id="Upload">Upload</button>
         <br />
}

could u help me to upload more than 100 files at a time thanks in advance

Answer 1

The view is OK. The problem is the controller: don’t use ImageModel to get the file from the form. It restricts you to just one file. You can get multiple files through Request.Files property:

            for (int i = 0; i < Request.Files.Count; i++)
            {
                if (Request.Files[i].ContentLength > 0)
                {
                    HttpPostedFileBase uploadedFile = Request.Files[i];
                    ... here you can use the resize and other logic 
                    ... on uploadedFile.InputStream
                }
            }

Check the HttpPostedFileBase class. It’s the base class for HttpPostedFileWrapper which you use in your ImageModel model class.