利用实现数据同步功能, 已经完成测试,可以实现.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;
using System.Data.SqlServerCe;
using System.IO;
using System.Xml;

namespace LocalTest
{
public partial class Form6 : Form
{

string remoteString;
string localString;
SqlCeConnection conn = new SqlCeConnection("DataSource=Test.sdf");

public Form6()
{
InitializeComponent();
}

private void Form_Load(object sender, EventArgs e)
{

//conn.ConnectionString = "DataSource=mysdf.sdf";
remoteString = "provider=sqloledb;Data Source=172.18.188.31;Initial Catalog=InfoDB;Persist Security Info=True;User ID=Test;Password=sa";
localString = "DataSource=Test.sdf";
}

private void btn_save_Click(object sender, EventArgs e)
{
try
{
string ls_pcno, ls_pcxh, ls_type, ls_date;
ls_pcno = tb_no.Text.ToString().Trim();
ls_pcxh = tb_xh.Text.ToString().Trim();
ls_type = tb_type.Text.ToString().Trim();
ls_date = tb_date.Text.ToString().Trim();
string ls_sql = "insert into pc values ('" + ls_pcno + "', '" + ls_pcxh + "', '" + ls_type + "', '" + ls_date + "')";
MessageBox.Show(ls_sql);
SqlCeCommand cmd = new SqlCeCommand(ls_sql);
conn.Open();
cmd.Connection = conn;
cmd.ExecuteNonQuery();
conn.Close();
MessageBox.Show("插入数据成功！");
}
catch (Exception ex)
{
MessageBox.Show("插入数据失败！" + ex.ToString());
}
}

//从SQL Server 把数据同步过来PULL
private void btn_rec_Click(object sender, EventArgs e)
{
try
{
SqlCeRemoteDataAccess rda = new SqlCeRemoteDataAccess();
rda.LocalConnectionString = localString;
rda.InternetUrl = "http://172.18.188.31/test/sqlcesa30.dll";
rda.Pull("pcinfo", "select * from pc", remoteString,RdaTrackOption.TrackingOn,"ErrorList");
MessageBox.Show("获取数据成功");
}
catch (Exception ex)
{
MessageBox.Show("获取数据失败" + ex.ToString());
}

}

// 将修改过的数据同步到SQL Server 数据库中去PUSH
private void btn_send_Click(object sender, EventArgs e)
{
try
{
SqlCeRemoteDataAccess rda = new SqlCeRemoteDataAccess();
rda.LocalConnectionString = localString;
rda.InternetUrl = "http://172.18.188.31/test/sqlcesa30.dll";
rda.Push("pcinfo", remoteString, RdaBatchOption.BatchingOn);
MessageBox.Show("同步数据成功");
}
catch (Exception ex)
{
MessageBox.Show("同步数据失败" + ex.ToString());
}
}

private void btn_cancel_Click(object sender, EventArgs e)
{
this.Close();
}

}
}