public void Dispose()
 {
     if (_isInUse && _odbcConnection.State == ConnectionState.Open)
     {
         PooledConnections.ReleaseConnection(this);
         _isInUse = false;
     }
 }
 public void Close()
 {
     PooledConnections.ReleaseConnection(this);
     _isInUse = false;
 }