Question

I have a Func in my code that’s declared like this:

Func<string, int, bool> Filter { get; set; }

How can I reach the string and the int variables that are parameters of the Func in order to use them in my code?

Answer 1

The parameters only exist when the function is called… and they’re only available within the function. So for example:

foo.Filter = (text, length) => text.Length > length;

bool longer = foo.Filter("yes this is long", 5);

Here, the value “yes this is long” is the value of the text parameter while the delegate is executing and likewise the value 5 is the value of the length parameter while it’s executing. At other times, it’s a meaningless concept.

What are you really trying to achieve? If you could give us more context, we could almost certainly help you better.