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Editorial Team
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Asked: 2026-06-09T09:31:25+00:00

I need to validate a date field which is being entered by a user

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I need to validate a date field which is being entered by a user via a visualforce page.
The format my code expects is “yyyy-MM-dd”.

What is the best way to handle this in apex. I have done similar stuff in Java before using certain standard classes which are not available in Apex like SimpleDateFormat for example.

Now I can check if the “format” is correct using a regular expression. But I must also prevent users from entering “9999-99-99” which satisfies the format. I am hoping Salesforce has a good built-in solution.

Thanks,
Calvin

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1 Answer

  1. Editorial Team

    Guys I managed to solve my problem because it was a little unique anyways.

    So I used a regex to validate the format of the date being entered to ensure it is in yyyy-MM-dd format.

    The I used Date.valueOf
    This built in method always takes a date in the form of yyyy-MM-dd. It throws an exception if that has a bad value like 9999-99-99 etc….I display the exception’s message to the user using e.getMessage() to complete my validation of the date fields.

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