PyDictionary

Very simple (not complete) Python-style dictionary in .NET 4.0 using dynamic objects. Allows for arbitrary members to be created and used on the fly.

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Dynamic;

namespace TestApplication

{

class PyDictionary : DynamicObject

{

private Dictionary<string, object> m_state =
new Dictionary<string,object>();

public override IEnumerable<string> GetDynamicMemberNames()

{

return m_state.Keys;

}

public override bool TrySetMember(SetMemberBinder binder,
object value)

{

m_state[binder.Name] = value;

return true;

}

public override bool TryGetMember(GetMemberBinder binder,
out object result)

{

result = m_state[binder.Name];

return true;

}

};

class Program

{

static void Main(string[] args)

{

dynamic baby = new PyDictionary();

baby.Name = "Alyssa";

baby.Age = 0.8f;

Console.WriteLine(baby.Name + " is " + baby.Age + " years old!");

// I will throw a KeyNotFoundException

int iq = baby.IQ;

}

}