How to convert DateTime to DateTime

Question

I want to convert a nullable DateTime  DateTime    to a DateTime  but I am getting an error      Cannot implicitly convert type  System DateTime   to    System DateTime   An explicit conversion exists  are you missing a   cast     I have attempted the following   DateTime UpdatedTime    DateTime  objHotelPackageOrder UpdatedDate    null        DateTime Now    objHotelPackageOrder UpdatedDate

User · Answer

MS already made a method for this  so you dont have to use the null coalescing operator  No difference in functionality  but it is easier for non-experts to get what is happening at a glance   DateTime updatedTime    objHotelPackageOrder UpdatedDate GetValueOrDefault DateTime Now

User · Answer

Try this   DateTime UpdatedTime    DateTime  objHotelPackageOrder UpdatedDate    null   DateTime Now    objHotelPackageOrder UpdatedDate Value

User · Answer

You want to use the null-coalescing operator  which is designed for exactly this purpose   Using it you end up with this code   DateTime UpdatedTime    objHotelPackageOrder UpdatedDate    DateTime Now

User · Answer

Here is a snippet I used within a Presenter filling a view with a Nullable Date Time   memDateLogin   m memDateLogin    DateTime MinValue

User · Answer

You need to call the Value property of the nullable DateTime  This will return a DateTime   Assuming that UpdatedDate is DateTime   then this should work   DateTime UpdatedTime    DateTime  objHotelPackageOrder UpdatedDate    null   DateTime Now    objHotelPackageOrder UpdatedDate Value   To make the code a bit easier to read  you could use the HasValue property instead of the null check   DateTime UpdatedTime    objHotelPackageOrder UpdatedDate HasValue                              objHotelPackageOrder UpdatedDate Value                             DateTime Now    This can be then made even more concise   DateTime UpdatedTime    objHotelPackageOrder UpdatedDate    DateTime Now

User · Answer

How about the following   DateTime UpdatedTime    objHotelPackageOrder UpdatedDate HasValue    objHotelPackageOrder UpdatedDate value   DateTime Now

User · Answer

Consider using the following which its far better than the accepted answer  DateTime UpdatedTime    objHotelPackageOrder UpdatedDate    null        DateTime Now    DateTime  objHotelPackageOrder UpdatedDate

User · Answer

You can use a simple cast   DateTime dtValue    DateTime  dtNullAbleSource    As  Leandro Tupone said  you have to check if the var is null before

User · Answer

Try this  DateTime UpdatedTime    objHotelPackageOrder UpdatedDate    DateTime Now

User · Answer

DateTime UpdatedTime    objHotelPackageOrder HasValue    objHotelPackageOrder UpdatedDate Value   DateTime Now

User · Answer

You can also try Nullable T  Properties   DateTime UpdatedTime    objHotelPackageOrder UpdatedDate HasValue        DateTime Now    objHotelPackageOrder UpdatedDate Value

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