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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace GridTest
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            SetupDataGridView();
        }
        protected void SetupDataGridView()
        {
            DataGridViewComboBoxColumn cbx_1 = new DataGridViewComboBoxColumn();
            {

                cbx_1.HeaderText = "COMBO BOX 1";
                for (int i = 1; i < 3; i++)
                    cbx_1.Items.Add("Item " + i.ToString());
            }
            DataGridViewComboBoxColumn cbx_3 = new DataGridViewComboBoxColumn();
            {

                cbx_3.HeaderText = "COMBO BOX 3";
                for (int i = 1; i < 3; i++)
                    cbx_3.Items.Add("Sample " + i.ToString());
            }
            DataTable dt = new DataTable();
            DataRow dr1 = dt.NewRow();
            dt.Rows.Add(dr1);
            DataRow dr2 = dt.NewRow();
            dt.Rows.Add(dr2);
            DataRow dr3 = dt.NewRow();
            dt.Rows.Add(dr3);
            
            dataGridView1.DataSource = dt;
            dataGridView1.Columns.Add(cbx_1);
            dataGridView1.Columns.Add(cbx_3);
        }

        
    }
}