public override void Open()
{
if (state == ConnectionState.Open)
{
throw new InvalidOperationException("The Connection is already Open (State=Open)");
}
if (connectionString == null || connectionString.Trim().Length == 0)
{
throw new InvalidOperationException("Connection string has not been initialized.");
}
connection = TdsConnectionPool.GetConnection(dataSource, port, deviceId, priority, timeout);
try
{
connection.Open();
}
catch (SocketException se)
{
throw new DbProxyException(se.Message, se);
}
disposed = false; // reset this, so using () would call Close ().
ChangeState(ConnectionState.Open);
}
/// <summary>
/// 关闭连接
/// </summary>
public void Close()
{
if (isOpen)
{
isOpen = false;
TdsConnectionPool.PutConnection(connection);
}
}
