I'm trying to make a DataTable and then add a couple rows to it. Here's my code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Data;


namespace thisNamespace
{
    class Program
    {
        static void Main(string[] args)
        {
            DataTable dt=new DataTable();
            dt.Columns.Add("XYZID");
            DataRow dr=dt.NewRow();
            dr["XYZID"]=123;
            dt.ImportRow(dr);
            dr["XYZID"] = 604303;
            dt.ImportRow(dr);

        }
    }
}

When I step through the program, dr is successfully initialized and populated with values, but then after ImportRow(dr), the count of rows in dt is still 0. I feel like I must be missing something obvious. What's going wrong here?

c# datatable
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