A fantastic series that's helped me a lot. Please keep up the good work - we need much more training content because everything is moving so fast. Maybe an ASP.NET 5 course next?
By the way, I just ran the HeroExplorer app and your alter-ego popped up: Bob, Agent of Hydra! Not sure about the description though -- "A cowardly young man, Bob was persuaded into joining the criminal organisation HYDRA ...".
I'm loving this series - it's so satisfying getting these apps to work with your assistance!
However, I just thought I'd point out a problem which you didn't pick up at the point where you grew your hockey beard. I picked up your error with passing in the latitude twice (I did tell you at the time but you didn't listen!), but there was still a more serious problem which will trip people up, as it did me.
After I set the DataContext in the SearchResults_Loaded method of SearchResults.xaml.cs, I ran the app and it still didn't work. After a bit of digging, I realized that the SearchResults_Loaded method needed to be set to async, as the method FlickrImage.GetFlickrImages which it calls is defined as async, and therefore you also need to call it with the await keyword. So you need:
In the video, this is not shown - but in the transcript below the video and the source code download, it is shown. However, those following just the video (like me, most of the time) would not necessarily pick this up.
Hope this helps others following along with what is an absolutely cracking series.
Great intro Bob - as usual clear and concise. Just one comment - the anchor tag's name attribute is obsolete in HTML5, but you can instead link to any tag with an id attribute. In this case, put id="bottom" on the h1 element. This is in keeping with the semantic aims of HTML5 - a named anchor tag is an artificial element which adds no additional meaning to the document.