title: Check uploaded image's dimensions
body: <p>I'm using asp.net 3.5 and c# on my web site. Here is my question:</p>
  
  <p>I have an upload button and asp:Image on a page. An user can upload an image from his computer and that image will be displayed in the asp:image. But before I display the image, I would like to check the width and height of the uploaded image. How do I do this?</p>