Checking several string for null in an if statement

Question

Is there a better (nicer) way to write this if statement?

if(string1 == null && string2 == null && string3 == null && string4 == null && string5 == null && string6 == null){...}

Answer 1

Perhaps using the null-coalescing operator(??):

if((string1 ?? string2 ?? string3 ?? string4 ?? string5 ?? string6) == null){ ;}

If all strings are in a collection you can use Linq:

bool allNull = strings.All(s => s == null);

Answer 2

You could put all the strings in a list and use

if(listOfStrings.All(s=>s==null))

At the very least you can put it on multiple lines

if(string1 == null 
   && string2 == null 
   && string3 == null 
   && string4 == null 
   && string5 == null 
   && string6 == null)
{...}