using System;

using System.Data;

public class Program

{

    public static void Main()

    {

        DataTable table = null;

        Test(table);

        table = new DataTable();

        Test(table);

    }

    public static void Test(DataTable table)

    {

        if(table == null)

        {

            Console.WriteLine("table is null");

            return;

        }

        if(table.IsInitialized == false)

        {

            Console.WriteLine("table is not initalised.");

            return;

        }

        Console.WriteLine("table row count: " + table.Rows.Count);

    }

}