请教在WinCE 下的连接SQL数据库为什么连接不上，请高手帮忙！（这个看似简单的问题困扰我几天了“晕”）
代码如下：
using System;
using System.Collections.Generic;
using
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.
using System.Data.SqlClient;
        SqlConnection conn = new SqlConnection("Persist Security Info=False;Server=.;User ID=sa;Password=sa;Initial Catalog=Services;");
        try
        {
            SqlCommand cmd = new SqlCommand();
             = "select Count(*) from s_bm";
            cmd.Connection = conn;
            conn.Open();
            textBox1.Text = cmd.ExecuteScalar().ToString();
            MessageBox.Show("连接成功！", "系统提示");
            conn.Close();

        }
        catch (SqlException ex)
        {
            MessageBox.Show(ex.Message.ToString());
        }

自己先顶一下，大家给看看是怎么回事，就是连接不上