To test what we’ve built so far, we can run our app and try it out. Let’s first set the ArticleEdit Form to be the Startup Form by opening up the App Browser, clicking the three dots menu next to ‘ArticleEdit’ and selecting ‘Set as Startup Form’. A lightning bolt icon will appear next to ArticleEdit to indicate that it is now the Startup Form

Now run the app by clicking the green Run button at the top of the Anvil Editor.

You should see the ArticleEdit Form running, and the dropdown should be populated with your categories:

Remember to set Homepage back as the Startup Form when you’ve finished.
