using System;
using System.Windows.Forms;
using System.Drawing;
using System.Data.OleDb;
using System.Data;
using System.IO;
using System.Text;
using System.Collections.Generic;

class form1: Form {
    DataGridView gd0;
    form1() {
        Text = "DataGrid";
        ClientSize = new Size(580, 400);
        gd0 = new DataGridView();
        gd0.Location = new Point(50, 20);
        gd0.Width = 500;
        gd0.Height = 300;
        Controls.AddRange(new Control[] {
            gd0
        });
        Button btn1 = new Button();
        btn1.Location = new Point(50, 330);
        btn1.Text = "test";
        btn1.Click += btn1_Click;
        Controls.AddRange(new Control[] {
            btn1
        });
    }
    void btn1_Click(object sender, System.EventArgs e) {
        Encoding enc = Encoding.GetEncoding("Shift_JIS");
        string file = "test1.csv";
        StreamReader reader = new StreamReader(file, enc);
        string temp = reader.ReadToEnd();
        string[] lines = temp.Split(new string[] {
            "\r\n"
        }, StringSplitOptions.None);
        string[] spLine;
        spLine = lines[0].Split(new char[] {
            ',',
            '\t'
        }, StringSplitOptions.None);
        gd0.ColumnCount = spLine.Length;
        for (int i = 0; i < spLine.Length; i++)
        {
            gd0.Columns[i].HeaderText = spLine[i].Trim('"');
        }
        DataGridViewRow[] rows = new DataGridViewRow[lines.Length - 1];
        for (int i = 1; i < lines.Length; i++)
        {
            spLine = lines[i].Split(new char[] {
                ',' ,
                '\t'
            }, StringSplitOptions.None);
            for (int j = 0; j < spLine.Length; j++)
            {
                spLine[j] = spLine[j].Trim('"');
            }
            DataGridViewRow row = new DataGridViewRow();
            row.CreateCells(gd0);
            row.SetValues(spLine);
            rows[i - 1] = row;
        }
        gd0.Rows.AddRange(rows);
        MessageBox.Show("ok");
    }
    [STAThread]
    public static void Main() {
        Application.Run(new form1());
    }
}