I've been searching a lot but couldn't find a solution. How do you deal with a DateTime that should be able to contain an uninitialized value (equivalent to null)? I have a class which might have a DateTime property value set or not. I was thinking of initializing the property holder to DateTime.MinValue, which then could easily be checked. I guess this is a quite common question, how do you do that?
C# – DateTime “null” value
cdatetimenull
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Best Answer
For normal DateTimes, if you don't initialize them at all then they will match
DateTime.MinValue, because it is a value type rather than a reference type.You can also use a nullable DateTime, like this:
Or the longer form:
And, finally, there's a built in way to reference the default of any type. This returns
nullfor reference types, but for our DateTime example it will return the same asDateTime.MinValue:or, in more recent versions of C#,