C#•2y ago

✅ Calling a nullable Action or Func

In my class I have the following:

private Action<bool>? _myAction;

private Action<bool>? _myAction;

Is there a way of calling it if it isn't null in a single line? Something like (and this doesn't work):

_myAction?(true);

_myAction?(true);

Similarly with a Func, can I do something like:

private Func<bool, bool>? _myFunc;

bool result = _myFunc?(true) ?? false;

private Func<bool, bool>? _myFunc;

bool result = _myFunc?(true) ?? false;

5 Replies

MODiX•2y ago

Angius#1586

REPL Result: Success

Func<int>? foo = () => 8;
var x = foo is {} f ? f() : 0;
x

Func<int>? foo = () => 8;
var x = foo is {} f ? f() : 0;
x

Result: int

Compile: 502.186ms | Execution: 72.240ms | React with ❌ to remove this embed.

Angius•2y ago

This works

Saber•2y ago

disgusting.

var foo = func?.Invoke(args) ?? default;
action?.Invoke(args);

var foo = func?.Invoke(args) ?? default;
action?.Invoke(args);

Angius•2y ago

Ah, completely forgot about .Invoke() You're right

HughOP•2y ago

Ah - nice - Invoke sounds good to me Thanks