Rewrite one-line if - “?:” as “??” - to avoid StyleCop warning

Question

How to write a oneliner "if" using "??"

example: How to write the following using "??" instead of "?:"

        SiteSettings = (sitessettings == null)
            ? UnityManager.Instance.Resolve<ISiteSettingsFactory>().Get(100)
            : sitessettings;

Answer 1

Your conditional statement is equivalent to:

SiteSettings = sitessettings 
            ?? UnityManager.Instance.Resolve<ISiteSettingsFactory>().Get(100);

Answer 2

也许

SiteSettings = sitessettings ?? UnityManager.Instance.Resolve<ISiteSettingsFactory>().Get(100)

Answer 3

尝试这个？

SiteSettings = sitessettings ?? UnityManager.Instance.Resolve<ISiteSettingsFactory>().Get(100)

Answer 4

SiteSettings  = sitessettings ?? UnityManager.Instance.Resolve<ISiteSettingsFactory>().Get(100);