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Asked: 2026-06-15T04:35:07+00:00

Basically, what I’m trying to do is get an image to represent a page

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Basically, what I’m trying to do is get an image to represent a page (for quick browsing in a XAML GridView).

I have the pages URL (and it’s HTML content), but now I’m not completely sure how to proceed. I could just use the Favicon, but I don’t think that would scale well up to the 200×200 box I’m using to display it. The other option (as far as I can think of) is to look through the HTML source and pick out the largest image.

Is there an easier/simpler way to do that in C# other than just using Regexs to find the height/width of all the image tags and then comparing them?

Thanks!

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1 Answer

  1. Editorial Team

    There is no way to know for sure from the HTML source what size the images are. An img tag doesn’t require the height and width parameters. If they’re not specified, then the image is displayed in its actual size. If all the img tags on the page have their height and width specified, you could pick the one that has the largest values. But those are the display sizes. The actual sizes might be quite different.

    The only way to be 100% sure is to download each image and get its size.

    By the way, if you’re parsing HTML, you probably shouldn’t be doing it with regular expressions. I know it seems simple enough, but you’re almost certain to get things wrong and not handle some common cases. You’ll save yourself a lot of time and frustration by using something like the Html Agility Pack.

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