// C# Extension Method

// Doc: https://csharp-extension.com/en/method/1002643/array-todatatable

​

// @nuget: Z.ExtensionMethods

​

using System;

using System.Data;

public class Program

{

    public static void Main()

    {

        var myObjs = new[]

        {

            new TestObject

            {

                IntColumn = 1,

                StringColumn = "2"

            },

            new TestObject

            {

                IntColumn = 3,

                StringColumn = "4"

            }

        };

​

        // C# Extension Method: Array - ToDataTable

        DataTable dt = myObjs.ToDataTable();

​

        // Unit Test

        Console.WriteLine(dt.Rows.Count);

        Console.WriteLine(dt.Rows[0]["IntColumn"]);

        Console.WriteLine(dt.Rows[0]["StringColumn"]);

        Console.WriteLine(dt.Rows[1]["IntColumn"]);

        Console.WriteLine(dt.Rows[1]["StringColumn"]);

    }

​

    public class TestObject

    {

        public int IntColumn;

        public string StringColumn { get; set; }

    }

}