internal void Validate()
{
if (!string.IsNullOrWhiteSpace(ConnectionStringName) &&
!string.IsNullOrWhiteSpace(ConnectionString))
{
throw Error.AmbiguousConnectionString();
}
if (string.IsNullOrWhiteSpace(ConnectionString)
!= string.IsNullOrWhiteSpace(ConnectionProviderName))
{
throw Error.MissingConnectionInfo();
}
}