Catch CLR errors in X++ in Dynamics 365 for Operations

Although there are useful posts out there on catching CLR errors in X++ for older versions of Dynamics AX, as of this writing, I couldn’t find one that address the current version. It took me a little experimentation and trial-and-error to figure out how to do it; in particular, to actually return a useful error message, instead of just a generic CLR error. Below is the pattern I use. For simplicity, I’m leaving out some of the other types of CATCH you might use, as well as other detail irrelevant to the pattern.

As usual, I would greatly appreciate comments on whether this works for you, and if you know of any improvements.

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