TryFunction

In my two last posts, I laid out the technical design of the Preview Posting feature, and then showed how to simplify its design to get around the unwanted behavior of TryFunction . One thing is obvious from these posts: Preview Posting wants to simulate posting of a document (or journal) to show what the results would be, but without leaving any actual trace in the database.

One of great new functional features of Microsoft Dynamics NAV 2016 is preview posting. It allows you to preview all the entries that would result from posting a document or a general journal. Preview posting is not a simple thing. If it was, Microsoft would have delivered it years ago.

If this was a joke, then it would be one of those good-news-bad-news jokes. So which one do you want first? To stay true to all jokes of this kind, I’ll start with good news first. Good news is, you now have TryFunction s, that return true if no error happens, and false if an error happens inside them.