Calling a method with ref or out parameters from an anonymous method [duplicate]

Answer 1

Actually, you can use ref and out - just not directly with the calling method's parameters; you can, however, just copy the values before and after invoking:

static void Foo(ref string s, out int i)
{
    string tmpS = s;
    int tmpI = 0; // for definite assignment
    DoIt(delegate { Bar(ref tmpS, out tmpI); });
    s = tmpS;
    i = tmpI;
}