SerialPort.DtrEnable Property

 

Gets or sets a value that enables the Data Terminal Ready (DTR) signal during serial communication.

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

[BrowsableAttribute(true)]
public bool DtrEnable { get; set; }

Property Value

Type: System.Boolean

true to enable Data Terminal Ready (DTR); otherwise, false. The default is false.

Exception Condition
IOException

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.

Data Terminal Ready (DTR) is typically enabled during XON/XOFF software handshaking and Request to Send/Clear to Send (RTS/CTS) hardware handshaking, and modem communications.

.NET Framework
Available since 2.0
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