How can I assign a Func<> using the conditional ternary operator? [duplicate]

Question

Update

In C#10, this syntax is now valid and the compiler will infer a 'natural type' for a lambda Example here

C# 9 and Earlier

I am aware that Func<>s cannot be implicitly typed directly via the var keyword, although I was rather hoping that I could do the following assignment of a predicate:

Func<Something, bool> filter = (someBooleanExpressionHere)
   ? x => x.SomeProp < 5
   : x => x.SomeProp >= 5;

However, I get the error cannot resolve the symbol, 'SomeProp'

At the moment, I have resorted to the more cumbersome if branch assignment, which doesn't seem as elegant.

Func<Something, bool> filter;
if (someBooleanExpressionHere)
{
    filter = x => x.SomeProp < 5;
}
else
{
    filter = x => x.SomeProp >= 5;
}

Have I missed something, or will I need to stick with the if-branch assignment?

Answer 1

var filter = (someBooleanExpressionHere)
   ? new Func<Something, bool>(x => x.SomeProp < 5)
   : x => x.SomeProp >= 5;