Initialize Dynamic class with Constructor

using System;
using System.Collections.Generic;
using System.Linq;
using System.Dynamic;

class Program
{
    static void Main()
    {
        var fields = new List<Field>() {
            new Field("EmployeeID", typeof(int)),
            new Field("EmployeeName", typeof(string)),
            new Field("Designation", typeof(string))
        };

        //set
        dynamic obj = new DynamicClass(fields, new {EmployeeID = 123456, EmployeeName = "John", Designation = "Tech Lead"});

        //get
        Console.WriteLine(obj.EmployeeID);
        Console.WriteLine(obj.EmployeeName);
        Console.WriteLine(obj.Designation);
    }
}

public class DynamicClass : DynamicObject
{
    private Dictionary<string, KeyValuePair<Type, object>> _fields;

    public DynamicClass(List<Field> fields, object props)
    {
        _fields = new Dictionary<string, KeyValuePair<Type, object>>();
        var properties = props.GetType().GetProperties();
        foreach (var p in properties)
        {
            var element = fields.FirstOrDefault(x => x.FieldName == p.Name);
            if (element != null)
            {
                var value = p.GetValue(props, null);
                if (value.GetType() == element.FieldType)
                {
                    _fields.Add(p.Name, new KeyValuePair<Type, object>(element.FieldType, value));
                }
                else throw new Exception("Value " + value + " is not of type " + element.FieldType.Name);
            }
            else throw new Exception(this.GetType().Name + " does not contain a definition for '" + p.Name + "'");
        }
    }

    public override bool TryGetMember(GetMemberBinder binder, out object result)
    {
        result = _fields[binder.Name].Value;
        return true;
    }
}

public class Field
{
    public Field(string name, Type type)
    {
        this.FieldName = name;
        this.FieldType = type;
    }

    public string FieldName;

    public Type FieldType;
}