VS2008操作SQLCE3.5示例

using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlServerCe;
using System.Configuration;    

private void menuItem1_Click(object sender, EventArgs e)
        {
            //获取可执行程序所在目录和数据库文件
            string sFilePath =

             System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase) + "//DB//db.sdf";
            //连接sql server Mobile数据库的连接字符串
            string _LocalConnectionString = "Data Source=" + sFilePath + ";Persist Security Info=False;password=;";
           _Connection = new SqlCeConnection(_LocalConnectionString);

          //绑定到DATAGRID1
           DataTable t = ExeceuteDataTable("select * from MyTable");
          dataGrid1.DataSource = t;
        }

        private SqlCeConnection _Connection = null;

        private string _LocalConnectionString = "";

 

        public int ExcuteNoneQuery(string strSQL)
        {
            _Connection.Open();
            SqlCeCommand command = _Connection.CreateCommand();
            command.CommandText = strSQL;

            int iRows = 0;

            try
            {
                iRows = command.ExecuteNonQuery();
            }
            catch (Exception ex)
            {
                throw ex;
            }

            return iRows;
        }

 

        //返回一个DataTable：

        public DataTable ExeceuteDataTable(string strSQL)
        {
            DataTable dt = new DataTable();

            try
            {
                SqlCeDataAdapter da = new SqlCeDataAdapter(strSQL, _Connection);
                da.Fill(dt);
            }
            catch (Exception ex)
            {
                throw ex;
            }

            return dt;
        }