C＃6空条件检查

Question

How do I convert this into C# 6 Null Conditional Check?

var durationhours = product.ProductAudioAsset.TotalLengthInSeconds != null
    ? (short?)TimeSpan.FromSeconds(product.ProductAudioAsset.TotalLengthInSeconds.Value).TotalHours
    : null;

where TotalLengthInSeconds is nullable short

Answer 1

You could create an extension method to help:

public static short SecondsAsTotalHours(this short value)
{
    return (short)TimeSpan.FromSeconds(value).TotalHours;
}

Then you can do this:

var durationhours = product.ProductAudioAsset.TotalLengthInSeconds?.SecondsAsTotalHours();