Image resizing on the fly in asp.net

Question

For simplicity lets say that I have a web page that needs to display thumbnails of images. The images locations are stored in a database(the images are stored on Amazon S3).

Answer 1

Using WebImage class that comes in System.Web.Helpers.WebImage you can achieve this.

You can use this great kid to output resized images on the fly.

Sample code:

public void GetPhotoThumbnail(int realtyId, int width, int height)
{
    // Loading photos’ info from database for specific Realty...
    var photos = DocumentSession.Query().Where(f => f.RealtyId == realtyId);

    if (photos.Any())
    {
        var photo = photos.First();

        new WebImage(photo.Path)
            .Resize(width, height, false, true) // Resizing the image to 100x100 px on the fly...
            .Crop(1, 1) // Cropping it to remove 1px border at top and left sides (bug in WebImage)
            .Write();
    }

    // Loading a default photo for realties that don't have a Photo
        new WebImage(HostingEnvironment.MapPath(@"~/Content/images/no-photo100x100.png")).Write();
}

More about it here: Resize image on the fly with ASP.NET MVC

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Here's a great tutorial that shows how to work with WebImage directly from the ASP.NET site:

Working with Images in an ASP.NET Web Pages (Razor) Site