![]() Version 1.0.2 UpdatesĪdded parameter checking with meaningful exceptions. Removed validation that would break the resizing if the property list had 0 items. Renamed "JpegThumbnailer" to "Thumbnailer".Īdded tests for PNG, GIF, TIF and BMP image formats. OR if a compression value is not provided, the default 85L will be used _thumbnailer.Create(100, ThumbnailFolder, originalFileLocation) _thumbnailer.Create(100, ThumbnailFolder, originalFileLocation, 50L) //With specified compression level of 50 Private string ThumbnailFolder = ConfigurationSettings.AppSettings Private Thumbnailer _thumbnailer = new Thumbnailer() Default value is set in NuGet package public string Create(float width, string imageFolder, string fullImagePath, long compressionLevel = 85L) OR if a compression value is not provided, the default 85L will be used string thumbnailPath = _thumbnailer.Create(100, ThumbnailFolder, originalFileLocation) Īdded optional image compression parameter. String thumbnailPath = _thumbnailer.Create(100, ThumbnailFolder, originalFileLocation, 50L) Var originalImage = thumbnailer.SaveOriginal(uploadPath, photo) HttpPostedFileBase photo = Request.Files Save the original photo at its original resolution Private string ThumbnailFolder = ConfigurationManager.AppSettings ![]() ![]() Default value is set in NuGet package How to use (example) private Thumbnailer _thumbnailer = new Thumbnailer() *Thumbnails will be saved to the file system automatically.Įxample MVC application is located at Version 3.0.0 UpdatesĬhanged. *Original uploaded images can be saved to the file system. You can downsize uploaded images as well as keep the original image if you want! ThumbnailImageM.ImageUrl = "~/thumbnail/L/" + FileUpload1.Create image thumbnails from uploaded image files to help downsize large resolution images that need to be displayed on your website in a smaller resolution.Įxcellent addition for custom blog sites or any kind of site that allows image files to be uploaded. ThumbnailImageS.ImageUrl = "~/thumbnail/S/" + FileUpload1.FileName NormalImage.ImageUrl = "~/Image/" + FileUpload1.FileName Zero) īmp2.Save(MapPath( "~/thumbnail/L/" ) + FileUpload1.FileName) Image bmp2 = img1.GetThumbnailImage(100, 100, null, IntPtr. Zero) īmp1.Save(MapPath( "~/thumbnail/S/" ) + FileUpload1.FileName) Image bmp1 = img1.GetThumbnailImage(50, 50, null, IntPtr. FromFile(MapPath( "~/image/" ) + FileUpload1.FileName) Protected void Upload_Click( object sender, EventArgs e)įileUpload1.SaveAs(MapPath( "~/Image/" + FileUpload1.FileName)) Protected void Page_Load( object sender, EventArgs e) This method retrieves the original image, creates a thumbnail by scaling the original image. The GetThumbnailImage method takes 4 parameters such as the width of the thumbnail, height of the thumbnail image in pixels, an unused delegate and a handle or pointer that must be always Zero. GetThumbnailImageAbort callback, IntPtr callbackData) Public Image GetThumbnailImage( int thumbWidth, int thumbHeight, Image. This method returns the thumbnail image for the given original image. In this article I am using the GetThumbnailImage method of the Image class. To start with, place a FileUpload control and a button control on your webpage like as follows: 'Best' here is defined as Relatively easy to implement, understand, and maintain Results in a thumbnail of reasonable quality Performance and high-quality thumbnails are secondary. Asp.Net simplifies the process of uploading images to the server with the FileUpload control. As part of the upload process, we need to A) store the image on the web server's hard drive and B) store a thumbnail of the image on the web server's hard drive. To upload images to the server, we need a File Upload control and a button control. This article will help you to learn make thumbnail image through the system.drawing namespaces. One of the most intriguing is the system.drawing namespace which allows the programmer to work with images. NET framework includes some extremely useful functionality and collections of namespaces. ![]() There is no real advantage using the image tag to make a thumbnail because the file size is exactly as the full image. This will only happen if the file size is small. The benefit of a real thumbnail is that it loads a small size 'preview' images very fast. Real thumbnails are NOT just images that look smaller because the are being resized with the width and height attributes of the img tag. ![]() they are resized images that are not only small physical size but small file size. Thumbnails are reduced image copies of the real image or you can say Thumbnail images are very small in size images i.e. ![]()
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