CODEWITHSUNDEEP
c#
SkyeBoniwell
SkyeBoniwell

Reputation: 7112

combine parts from 2 different datetime variables into a new datetime variable

I have 2 datetime objects that I need to combine.

This contains the correct date, but the time part is not needed. 

DateTime? sessionDate = fl.EventDateTimeStart

This contains the correct time, but the date part needs to be the date value from the sessionDate object above.

DateTime? sessionStartTime = g.GameStartTime.Value

I tried using some of the various DateTime toString() methods, but found out that because they are part of a class, they need to remain DateTime? types so I can't just convert them to a string.

So I came up with this really ugly method:

                sessionStartTime = new DateTime(
                    fl.EventDateTimeStart.Value.Year, 
                    fl.EventDateTimeStart.Value.Month, 
                    fl.EventDateTimeStart.Value.Day, 
                    g.GameStartTime.Value.Hour, 
                    g.GameStartTime.Value.Minute, 
                    g.GameStartTime.Value.Second)

Is there a more elegant way of to do this?

Thanks!

Upvotes: 0

Views: 83

Answers (1)

canton7
canton7

Reputation: 42300

Sure.

var result = fl.Value.Date + g.Value.TimeOfDay;

DateTime.Date returns a DateTime with the time part set to midnight. DateTime.TimeOfDay gets a TimeSpan containing the fraction of the day that has elapsed since midnight.

Make sure that both of your DateTimes have the same Kind, otherwise the result might not be what you expect.

Upvotes: 4

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