Gets or sets a value that enables the Data Terminal Ready (DTR) signal during serial communication.
(in System.dll)
'Usage
Dim instance As SerialPort
Dim value As Boolean
value = instance.DtrEnable
instance.DtrEnable = value
'Declaration
<BrowsableAttribute(True)> _
Public Property DtrEnable As Boolean
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.
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
.NET Framework
Supported in: 3.5, 3.0, 2.0
.NET Compact Framework
Supported in: 3.5, 2.0
Reference
