Nullable TimeSpan? to TimeSpan

Question

How do I convert this C# line of code to a TimeSpan from Nullable TimeSpan as DateStamp is Nullable DateTime

 TimeSpan? timestamp = DateTime.Now - modelXyz.DateStamp

Solution

TimeSpan? timestamp = DateTime.Now - modelXyz.DateStamp;
if(timestamp.HasValue)
{
    TimeSpan nonNullableTS = timestamp.Value;
}

Comments

[Jeppe Stig Nielsen]

What if DateStamp is actually null? Can we assume that will not happen?

[Jeppe Stig Nielsen]

Or of course: if (modelXyz.DateStamp.HasValue) { TimeSpan nonNullableTS = DateTime.Now - modelXyz.DateStamp.Value; /* use the time span here */ }

[Newbie2DotNet]

From another question, I got this DateTime timeStamp = modeXyz.DateStamp.GetValueOrDefault(); Is this right?

[granadaCoder]

Sure. You're basically trying to understand how "nullable's" work. msdn.microsoft.com/en-us/library/72cec0e0%28v=vs.110%29.aspx