C# - Excel Sheet to DataTable

Excel 파일의 Sheet를 데이터 베이스처럼 읽어들입니다.

예제로 아래 소스를 읽어보세요 ^ ^

public DataTable GetDataTable()
    {
        string workSheet = "Sheet1$";
        DataTable dtDataTable = new DataTable(workSheet);
        string connectionString = "Provider=Microsoft.JET.OLEDB.4.0;data source=\"D:\\Test1.xls\";Extended Properties=\"Excel 8.0;HDR=YES;IMEX=1\"";
        using (OleDbConnection conn = new OleDbConnection(connectionString))
        {
            string sql = "SELECT * FROM [" + workSheet + "]";
            conn.Open();
            try
            {
                try
                {
                    new OleDbDataAdapter(sql, conn).Fill(dtDataTable);
                }
                catch (Exception)
                {
                }
                return dtDataTable;
            }
            finally
            {
                if (conn.State == ConnectionState.Open)
                {
                    conn.Close();
                }
                conn.Dispose();
                dtDataTable.Dispose();
                dtDataTable = null;
            }
        }
        return dtDataTable;
    }