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SerialPort.WriteBufferSize Property


Gets or sets the size of the serial port output buffer.

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

public int WriteBufferSize { get; set; }

Property Value

Type: System.Int32

The size of the output buffer. The default is 2048.

Exception Condition

The WriteBufferSize value is less than or equal to zero.


The WriteBufferSize property was set while the stream was open.


The WriteBufferSize property was set to an odd integer value.

The WriteBufferSize property ignores any value smaller than 2048.

.NET Framework
Available since 2.0
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