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SerialPort Constructor (String)

Initializes a new instance of the SerialPort class using the specified port name.

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

new : 
        portName:string -> SerialPort


Type: System.String

The port to use (for example, COM1).


The specified port could not be found or opened.

Use this constructor to create a new instance of the SerialPort class when you want to specify the port name.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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