Converting from 1.9.71 to 2.9.1, having issues.

Hello. I am attempting to upgrade my commandlineparser code to the latest version and I am struggling.

The program's requirements are pretty simple: must have one and only one parameter, with a choice between two options.

Here is what I would ultimately like to have:

[Option("daysback", Required = false, Group = "onerequired", SetName = "daysback", Min = 0, Max = 999, HelpText = "Number of days back in time for run date.")]
public int? DaysBack { get; set; }

[Option("date", Required = false, Group = "onerequired", SetName = "date", HelpText = "Specific date for run date (yyyymmdd).")]
public string RunDate { get; set; }

Group would require at least one parameter, setname would make them mutually exclusive, max and min would check a value.

Unfortunately (according to docs), group and setname cannot be used together, so I had to drop group. And, min/max cannot be used on an int argument, so also dropped.

So now we look like this:

[Option("daysback", Required = false, SetName = "daysback", HelpText = "Number of days back in time for run date.")]
public int? DaysBack { get; set; }

[Option("date", Required = false, SetName = "date", HelpText = "Specific date for run date (yyyymmdd).")]
public string RunDate { get; set; }

Which is okay, but means that I have more checking to do myself.

Two questions please:

1. As is, this will parse cleanly if no arguments are given. Is there a way to set max/min number of required arguments?
2. Is there a way to generate the help screen text on demand? If I find argument errors with my post-parse checking, I'd like to output the same help screen that commandlineparser does.

Thanks.

Bryan Hunt

ファイルやテストは指定されていません。まず、issue で参照されているコマンドラインオプションの検証とヘルプ生成に関するドキュメントを確認し、次にオプショングループ、セット、数値制約、ヘルプ出力の現在の処理を追跡してください。完了時点で、要求された2つの動作がサポートされているかどうかを明らかにし、それらのための明確な対応方針を文書化または実装している状態にしてください。

索引モデルが issue の本文から書いたものです。