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[Source] C# Nullable types can be converted to non-nullable types

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Posted on 9/1/2016 1:56:07 PM | | |
Recently, in the process of doing something,

Some types can be null, for example: DateTime can I set to null, i.e. DateTime?    But how do I convert DateTime to DateTime???


The type is followed by a question mark, which is actually a shorthand form of Nullable.


Nullable <T>has two properties in it:




If the variable is empty and your T.Value throws an exception, you can use HasValue to judge.








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