using System;

using System.Reflection;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        Foo f = new Foo();

        // Set

        f["Bar"] = "asdf";

        // Get

        string s = (string)f["Bar"];

        f["FirstName"] = "stephany";

        string cid = "30";

        string rooms = null;

        //PropertyInfo propertyInfo = f.GetType().GetProperty("CampaignId2").IsDefined();

//OBJECT.GetType().GetProperty("PROPERTY") != null

    if (f.GetType().GetProperty("Rooms44") != null)

        Console.WriteLine("Property Exists");

        else

        Console.WriteLine("Property Doesn't Exist");

        SetValue(f,"CampaignId",cid);

        SetValue(f,"Rooms",rooms);

        //propertyInfo.SetValue(f, Convert.ChangeType(cid, propertyInfo.PropertyType), null);

    //  f["CampaignId"] = cid;

        Console.WriteLine(f.Bar.ToString());

        Console.WriteLine(f.FirstName.ToString());

        Console.WriteLine(f.CampaignId.ToString());

        Console.WriteLine(f["FirstName"].ToString());

        Console.WriteLine((f["Rooms"]??"null"));

    }

    public class Foo {

        public object this[string propertyName]

        {

            get { return this.GetType().GetProperty(propertyName).GetValue(this, null); }

            set { this.GetType().GetProperty(propertyName).SetValue(this, value, null); }

        }

​

        public string Bar { get; set; }

        public string FirstName { get; set; }

        public int    CampaignId { get; set; }

        public string Rooms { get; set; }

    }

    public static void SetValue(object inputObject, string propertyName, object propertyVal)

{

    //find out the type

    Type type = inputObject.GetType();

    //get the property information based on the type

    System.Reflection.PropertyInfo propertyInfo = type.GetProperty(propertyName);

    //find the property type

    Type propertyType = propertyInfo.PropertyType;

    //Convert.ChangeType does not handle conversion to nullable types

    //if the property type is nullable, we need to get the underlying type of the property

    var targetType = IsNullableType(propertyInfo.PropertyType) ? Nullable.GetUnderlyingType(propertyInfo.PropertyType) : propertyInfo.PropertyType;

    //Returns an System.Object with the specified System.Type and whose value is

    //equivalent to the specified object.

    propertyVal = Convert.ChangeType(propertyVal, targetType);

    //Set the value of the property

    propertyInfo.SetValue(inputObject, propertyVal, null);

}

private static bool IsNullableType(Type type)

{

    return type.IsGenericType && type.GetGenericTypeDefinition().Equals(typeof(Nullable<>));

}

​

}