New C# conditional assignment operator ?? for null cases!! (no more ? .. : in C# 2.0)

5 Comments

• Nice! Is this feature in C# 2.0 or 3.0?
  

• 2.0, and it's already working in the betas.
  

• Very handy, but what was wrong with
  
  
  
  object obj = coalesce(o1, o2, o3); // a la SQL
  
  
  
  I know it's wordier and looks like a function but won't I find a bunch of ?? in my code slightly disconcerting somehow ??
  
  
  
  

• Anybody in their right mind won't use this because of readability issues.
  

• Yeap, it's a nice feature.
  
  
  
  Al last Nullable<T> gets almost all wanted features and behavior, including lifted operators, null propagation, this nice coalescence operator (??), similar to the SQL behavior we are used to.
  
  
  
  Also for Nullable Types you can use the GetValueOrDefault from the Nullable class, wich does practically the same as the coalescence operator.
  
  
  
  Best regards,
  
  
  
  Andrés.