Wednesday, August 08, 2007

Generate thumbnail image in dotnet

          If you have created any e-commerce site, you must have used thumbnail image to display product. You may have seen many sites which display thumbnail image and product description and when user click on image it shows large image of the product.  You can do this by uploading two different images for each product OR by uploading a single image and runtime generate thumbnail image from that. You can easily do that in dotnet using "GetThumbnailImage" method. Below is the code for that,

function GenerateThumbnailImage()

        System.Drawing.Image imgThumbImage;
        System.Drawing.Image imgOriginalImage = 
                 new Bitmap(Server.MapPath(".")
                       + "\\Images\\bike1.jpg");

        using (imgThumbImage = 
            imgOriginalImage.GetThumbnailImage(50, 50, 
            new System.Drawing.Image.GetThumbnailImageAbort 
            (Abort), IntPtr.Zero))

private bool Abort()
        return false;

Fig - (1)  Generate thumbnail image

Happy Programming !!

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