Does not support DateOnly/TimeOnly values

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#495 opened on Aug 13, 2025 3 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty: 3/5
Estimated time: 1-2 days
Newbie friendliness: 42/100

Issue type: Feature
Clarity: Mostly clear
Activity status: Stale
Tech stack: fsharp
Domain: data-visualization

Research direction

Start with the F# Chart.Column overloads used by the DateOnly.MinValue example and reproduce the reported typecheck error. Trace how the accepted input types are selected, then verify that the example no longer produces the overload error for DateOnly and TimeOnly values.

Written by the indexing model from the issue text.

Description

It appears that Plotly.NET does not currently support DateOnly/TimeOnly values.

Seq.init 10 (fun x -> DateOnly.MinValue, x)
|> Chart.Column

Error

typecheck error No overloads match for method 'Column'.

Known type of argument: (DateOnly * int) seq

Dominant language: F#
Stars: 860
Forks: 99
Avg merge: 22m
Merged PRs (30d): 1

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