CS
private void LoadCSV()
{
OpenFileDialog dlg = new OpenFileDialog();
if (dlg.ShowDialog() != DialogResult.OK) return;
//CSVファイルのあるフォルダ
string csvDir = Path.GetDirectoryName(dlg.FileName);
//CSVファイルの名前
string csvFileName = Path.GetFileName(dlg.FileName);
//接続文字列
string conString = "Driver={Microsoft Text Driver (*.txt; *.csv)};Dbq=" + csvDir + ";Extensions=asc,csv,tab,txt;";
System.Data.Odbc.OdbcConnection con = new System.Data.Odbc.OdbcConnection(conString);
string commText = "SELECT * FROM [" + csvFileName + "]";
System.Data.Odbc.OdbcDataAdapter da = new System.Data.Odbc.OdbcDataAdapter(commText, con);
//DataTableに格納する
DataSet dataset = new DataSet();
DataTable dt = dataset.Tables.Add("Matrix");
da.Fill(dt);
dataGridView1.DataSource = dt;
dataGridView1.ReadOnly = true;
dataGridView1.AutoResizeColumns();
dataGridView1.AlternatingRowsDefaultCellStyle.BackColor = Color.LightGray;
//dataG