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文字列から日付型に変換できるか判定したい

Last updated at Posted at 2019-10-08
var hiduke = "2019/12/31";
Datetime dt;

 if (!DateTime.TryParse(hiduke, out dt))
            {
                // {0}行目:日付を入力して下さい。
                throw new BusinessException("003508", Row);
            }

hidukeが変換できるかどうか
Date型に変換された値はdtに入る。
出来なかったらBusinessExceptionを通る。

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