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Asked: 2026-06-13T10:07:39+00:00

My Code: DateTime? birthDate = DateTime.Parse(filterDictionary.ContainsKey(DOB) ? filterDictionary[DOB] : string.Empty); I am getting Error

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My Code:

DateTime? birthDate = DateTime.Parse(filterDictionary.ContainsKey("DOB") ? filterDictionary["DOB"] : string.Empty);

I am getting Error Message as “String was not recognized as a valid DateTime.” How to solve this issue. Thanks.

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1 Answer

  1. Editorial Team

    The problem (at least one of them) is that you can’t parse an empty string to a DateTime.

    Change your line of code to this to move the parsing only when you find the key, and return null instead of parsing when you don’t have it:

    DateTime? birthDate = filterDictionary.ContainsKey("DOB") ? DateTime.Parse( filterDictionary["DOB"]) : (DateTime?) null;

    The other problem might be that your dictionary DOB value is actually not possible to convert to a DateTime. If the above code does not work, please edit your question and post the value in filterDictionary["DOB"] when you get this error.

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