SerialPort::BytesToWrite Property


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Gets the number of bytes of data in the send buffer.

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

property int BytesToWrite {
	int get();

Property Value

Type: System::Int32

The number of bytes of data in the send buffer.

Exception Condition

The port is in an invalid state.


The stream is closed. This can occur because the Open method has not been called or the Close method has been called.

The send buffer includes the serial driver's send buffer as well as internal buffering in the SerialPort object itself.

.NET Framework
Available since 2.0
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