SerialPort.RtsEnable Property


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Gets or sets a value indicating whether the Request to Send (RTS) signal is enabled during serial communication.

Namespace:   System.IO.Ports
Assembly:  System (in System.dll)

public bool RtsEnable { get; set; }

Property Value

Type: System.Boolean

true to enable Request to Transmit (RTS); otherwise, false. The default is false.

Exception Condition

The value of the RtsEnable property was set or retrieved while the Handshake property is set to the RequestToSend value or the RequestToSendXOnXOff value.


The port is in an invalid state.

- or -

An attempt to set the state of the underlying port failed. For example, the parameters passed from this SerialPort object were invalid.

The Request to Transmit (RTS) signal is typically used in Request to Send/Clear to Send (RTS/CTS) hardware handshaking.

.NET Framework
Available since 2.0
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