using System;

using System.Linq;

using System.Collections.Generic;

using System.Reflection;

using System.Data;

public class Program

{

    public static void Main()

    {

        var people = new List<Person> { new Person{Name="Jamie", Age=10, Location="UK" }, new Person{Name="Fred", Age=30, Location="US" } };

        var props = new Dictionary<string,string>

        { 

            ["Name"] = "Person Name",

            ["Age"] = "Person Age"

        };

        var dt = ToDataTable(people, props);

        foreach(DataColumn col in dt.Columns)

            Console.WriteLine(col.ColumnName);

        foreach(DataRow row in dt.Rows)

            foreach(DataColumn col in dt.Columns)

                Console.WriteLine(row[col]);

    }

    public class Person

    {

        public string Name {get;set;}

        public int Age {get;set;}

        public string Location {get;set;}

    }

    public static DataTable ToDataTable<T>(List<T> items, Dictionary<string,string> properties)

    {

        DataTable dataTable = new DataTable(typeof(T).Name);

        PropertyInfo[] Props = typeof(T).GetProperties(BindingFlags.Public | BindingFlags.Instance).Where(p => properties.ContainsKey(p.Name)).ToArray();

        foreach (PropertyInfo prop in Props)

        {

            //Setting column names as Property names  

            dataTable.Columns.Add(properties[prop.Name]);

        }

        foreach (T item in items)

        {

            var values = new object[Props.Length];

            for (int i = 0; i < Props.Length; i++)

            {

​

                values[i] = Props[i].GetValue(item, null);

            }

            dataTable.Rows.Add(values);

        }

​

        return dataTable;

    }

}