void Close()
{
if (transaction != null && transaction.IsOpen)
{
transaction.Rollback();
}
if (dataReader != null)
{
if (tds != null)
{
tds.SkipToEnd();
}
dataReader = null;
}
if (tds != null && tds.IsConnected)
{
if (pooling && tds.Pooling)
{
if (pool != null)
{
pool.ReleaseConnection(tds);
}
}
else
if (tds != null)
{
tds.Disconnect();
}
}
if (tds != null)
{
tds.TdsErrorMessage -= new TdsInternalErrorMessageEventHandler(ErrorHandler);
tds.TdsInfoMessage -= new TdsInternalInfoMessageEventHandler(MessageHandler);
}
ChangeState(ConnectionState.Closed);
}