sql srver compact entity连接指定的数据库

            string entityConnectionString = ConfigurationManager.ConnectionStrings["EntitiesPation"].ConnectionString;

            var ecsb = new EntityConnectionStringBuilder(entityConnectionString);
            var scsb = new SqlConnectionStringBuilder(ecsb.ProviderConnectionString);

            scsb.DataSource = scsb.DataSource.Replace('1', '2');

            ecsb.ProviderConnectionString = scsb.ToString();

            
            using (EntitiesPation ent = new EntitiesPation(ecsb.ToString()))
   
            {

                MessageBox.Show(System.Text.Encoding.Default.GetString(ent.pation.First().image));

            }