Derik Whittaker



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Loading an Image via a URL

  Recently I needed to grab images via a URL for our project here at work.  We basically have a web server the has tons of images for our various products in many different sizes and I wanted to be able to grab the images via a URL.  I thought I would throw the code snippets up that are needed to do this.

The code to perform this is pretty straight forward.  You basically need to create the URI object from the URL and them open up a new web request in order to pull the image.

You will notice that we catch and swallow both the IOExcpetion and the WebException.  This is don't with intent <slapping hands> because if we cannot grab the image or it fails for any reason we want to return a null.  This is a business requirement because when this happens we will display a 'place holder' image.  Normally I would never advocate swalling excpetions, but sometimes you have to do what you have to do.

Posted 06-12-2007 8:27 AM by Derik Whittaker
Filed under: ,



pepe wrote re: Loading an Image via a URL
on 06-13-2007 2:58 AM

I would rather user a HttpHandler in that case. I think it is more scalable because you can retrieve images from different sources depending on the need. A sample code in the handler for an image stored in a database:

public void ProcessRequest(HttpContext context) {

      MemoryStream pictureStr = new MemoryStream(databaseObj.Picture);

      img = Image.FromStream(pictureStr);

  // Write the image to the response stream in JPEG format.

      img.Save(context.Response.OutputStream, ImageFormat.Jpeg);




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