c# - How do I get the latest date from a collection of objects using LINQ? -

i have list of objects , each object has expirationdate property of type datetime. want retrieve latest date in list. there elegant way of doing through linq?

something like:

datetime latestdate =  mycollection.where(r=>r.expirationdate.hasvalue).maxdate(r=>r.expirationdate.value); 

datetime? latestdate = mycollection.max(r => r.expirationdate); 

intellisense should have given max() method. =)

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now, if must assign datetime, consider doing thus:

datetime latestdate = mycollection.where(r => r.expirationdate.hasvalue)                                   .max(r => r.expirationdate)                                   .value; 

this not cover case of empty collection or collection null expirationdates.

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depending on earlier logic, checking

mycollection.any(r => r.expirationdate.hasvalue) 

might idea before trying assign value.