C# dictionary where clause fail

Question

I have a dictionary of key-value pairs. How can I check for where clause failure?

SomeDictionary.Where(x => x.Value && someOtherBool).First();

Is there a way to check if this returned some result without surrounding with try-catch block? Sure, I can call FirstOrDefault() but I don't get what I need then...

There should really be a method FirstOrReturn(arg)...

Answer 1

FirstOrReturn(arg) should be

.Where(x => x.Value && someOtherBool).DefaultIfEmpty(arg).First();