Question

Considering the following code

    public bool GetFalse()
    {
        return false;
    }
    public bool GetTrue()
    {
        return true;
    }

How can I force this expression GetFalse() && GetTrue() to execute second Method?

Answer 1

You can’t because the logical AND operator short circuits. In the general case it is a good idea to avoid side effects from expressions like that, although there are perfectly valid uses (i.e., if( someObj != null && someObj.Value == whatever ). You could use the bitwise and operator (&) which does not short circuit, but again, I wouldn’t do that.

You should split those two method calls into variables first and then perform the check if you need them both to execute.

bool first = SomeMethodCall();
bool second = SomeMethodThatMustExecute();

if( first && second )
{
    // ...
}