C# - How To Validate Date When Using String Instead Of A Date Type

Feb 2, 2011

In an Asp.net MVC app, I have inherited this problem (if it is a problem?) where one developer has used String for Date type.

In my model the property reads:

[Required]
[DisplayName("Registration Date")]
public string Registrationdate { get; set; }

The business requirement is that the field is not required, but if there is something in that fields then it must be a valid date.

How would you implement this requirement, without changing the data type?

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