如果将数据库的数据导出到文本文档中去

private void button1_Click(object sender, EventArgs e)
        {
            if (odfImport.ShowDialog() == DialogResult.OK)
            {
                FileStream fileStream = File.OpenRead(odfImport.FileName);
                StreamReader streamReader = new StreamReader(fileStream);
                SqlConnection conn = new SqlConnection(@"server=.;database=Test;Integrated Security=true;");
                conn.Open();
                SqlCommand cmd = conn.CreateCommand();
                cmd.CommandText = "Insert into Users(username,password) values(@username,@password)";
                string line = null;
                while ((line = streamReader.ReadLine())!=null)
                {
                    string[] strs = line.Split('|');
                    string name = strs[0];
                    string password = strs[1];
                    cmd.Parameters.Clear();
                    cmd.Parameters.Add(new SqlParameter("username", name));
                    cmd.Parameters.Add(new SqlParameter("password",password));
                    cmd.ExecuteNonQuery();
                }
                MessageBox.Show("导入成功");
            }
        }
上面是将文本文档的内容导入到数据库中现在问题是如何将数据库中的内容导出到文本文档中去 --------------------编程问答-------------------- 你可以先读取数据库数据，然后一行一行的传值给下面的方法
        public void WriteText(string strResult)
        {
            try
            {
                string FilePath = System.AppDomain.CurrentDomain.BaseDirectory + @"\test\";
                if (!Directory.Exists(FilePath))
                {
                    Directory.CreateDirectory(FilePath);
                }
                FilePath += string.Format("test_{0}.txt", DateTime.Now.ToString("yyyy-MM-dd"));

                if (System.IO.File.Exists(FilePath))
                {
                    System.IO.FileStream stream = new System.IO.FileStream(FilePath, System.IO.FileMode.Append);
                    byte[] data = new UTF8Encoding().GetBytes(strResult + "\r\n");
                    stream.Write(data, 0, data.Length);
                    stream.Flush();
                    stream.Close();
                }
                else
                {
                    System.IO.FileStream stream = new System.IO.FileStream(FilePath, System.IO.FileMode.OpenOrCreate);
                    byte[] data = new UTF8Encoding().GetBytes(strResult + "\r\n");
                    stream.Write(data, 0, data.Length);
                    stream.Flush();
                    stream.Close();
                }

            }
            catch { }
        } --------------------编程问答-------------------- 1、读取数据库中的数据
2、写文本文件，一行一行的append。

补充：.NET技术 ,  C#