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));
}