Visual Studio/WPF > DataGrid > CS에서 열을 추가하여 데이터 추가

Windows 7 Pro (32bit)
Microsoft Visual Studio 2017 Community
Sublime Text 2

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace _170421_WpfApp1
{
    /// <summary>
    /// MainWindow.xaml の相互作用ロジック
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        private void Window_ContentRendered(object sender, EventArgs e)
        {
            var dg = dataGridView1;
            for (int idx = 0; idx < 4; idx++)
            {
                var column = new DataGridTextColumn();
                column.Header = "Column" + (idx + 1);
                column.Binding = new Binding("Column" + (idx + 1));
                dg.Columns.Add(column);
                //
            }
            dg.Items.Add(new DataItem { Column1 = "a.1", Column2 = "a.2", Column3 = "a.3", Column4 = "a.4" });
            dg.Items.Add(new DataItem { Column1 = "b.1", Column2 = "b.2", Column3 = "b.3", Column4 = "b.4" });
        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {

        }
    }

    public class DataItem
    {
        public string Column1 { get; set; }
        public string Column2 { get; set; }
        public string Column3 { get; set; }
        public string Column4 { get; set; }
    }
}