CODEWITHSUNDEEP
csvf#recordtype-providers
Bedford
Bedford

Reputation: 1186

Adding new member to CsvProvider type in F#

I'm reading a CSV file in F# with CsvProvider from FSharp.Data. Is there a way to add new (calculated) columns without transforming it into an entirely new type?

open FSharp.Data

type Person = CsvProvider<"persons.csv">
let personData = Person.Load "persons.csv"

If Person has a member called YearOfBirth then is it possible to add a new member to it called Age that would have the calculated value of (DateTime.Now.Year - YearOfBirth) for all CSV rows?

Upvotes: 5

Views: 319

Answers (1)

kvb
kvb

Reputation: 55185

It depends on what you want, but this may work:

type Person.Row with
    member this.Age = DateTime.Now.Year - this.YearOfBirth

Upvotes: 6

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