Earlier this year, in Virtual List Reporting, I used a custom function written by Agnès Barouh called CustomList to generate a couple basic lists, and then remarked…
Well today I’m going to attempt to make good on that assertion. In case you aren’t already familiar with CustomList, it allows you to iteratively generate and/or parse lists using the full power of the FileMaker calculation engine. CustomList can process up to 500,000 rows — it is non-recursive and very fast — and today we’re going to use it to solve a variety of problems, both real world and theoretical. [Actually, the row limit can be adjusted, and it varies by platform — for full details see the CF definition.]
Today’s article features four demos…
- Demo 1: Lists Based on Found Set
- Demo 2: Sum Matching Values
- Demo 3: Date Filtration
- Demo 4: Prime Number Generator
…as well as a number of examples that don’t require a demo to illustrate their point. Continue reading “CustomList”