How to create an anonymous object with property names determined dynamically?

Question

Given an array of values, I would like to create an anonymous object with properties based on these values. The property names would be simply \"pN\" where N

Answer 1

Not exactly an anonymous object, but what about implementing a DynamicObject which returns values for p1 ... pn based on the values in the array? Would that work with Dapper?

Example:

using System;
using System.Dynamic;
using System.Text.RegularExpressions;

class DynamicParameter : DynamicObject {

    object[] _p;

    public DynamicParameter(params object[] p) {
        _p = p;
    }

    public override bool TryGetMember(GetMemberBinder binder, out object result) {
        Match m = Regex.Match(binder.Name, @"^p(\d+)$");
        if (m.Success) {
            int index = int.Parse(m.Groups[1].Value);
            if (index < _p.Length) {
                result = _p[index];
                return true;
            }
        }
        return base.TryGetMember(binder, out result);
    }

}

class Program {
    static void Main(string[] args) {
        dynamic d1 = new DynamicParameter(123, "test");
        Console.WriteLine(d1.p0);
        Console.WriteLine(d1.p1);
    }
}