Question

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How can I pass an anonymous type to a method?

Im trying to recognize the type of the anonymous type.

List<int> lst = new List<int> {1, 2, 3, 4, 5};

var myVarType = from item in lst select new {P = item*item, P2 = item + "###"};

foreach (var k in myVarType)
        {
            Console.WriteLine(k.P + "     " + k.P2);
        }

Now i want a part of code to be transferred to a function but it screams that he doesnt know the type – which is logical since var is to be known at compile time and he doesnt know the type at compile :

I dont want to use dynamic || Tuples.

and as you know var is not acceptable as a func param type.

But , Ive once read that there is a trick which lets me transfer to myFunc the anonymous type .

I think it was by Jon skeet or Eric lippert.

Help ?

edit

look at my self answer.
I found it here
What's the return type of an anonymous class

Answer 1

here is the code which i found

What's the return type of an anonymous class

static T CastByExample<T>(object source, T example) where T : class
{
    return source as T;
}

static object ReturnsAnonymous() { return new { X = 123 }; }

static void DoIt()
{
    object obj = ReturnsAnonymous();
    var example = new { X = 0 };
    var anon = CastByExample(obj, example);
    Console.WriteLine(anon.X); // 123
}