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SerialPort.RtsEnable Property

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 */
public boolean get_RtsEnable ()

/** @property */
public void set_RtsEnable (boolean value)

public function get RtsEnable () : boolean

public function set RtsEnable (value : boolean)

Not applicable.

Property Value

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

Exception typeCondition


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.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0

.NET Compact Framework

Supported in: 2.0