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.NET Framework 3.5
 StopBits Enumeration
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This page is specific to
Microsoft Visual Studio 2008/.NET Framework 3.5

Other versions are also available for the following:
.NET Framework Class Library
StopBits Enumeration

Specifies the number of stop bits used on the SerialPort object.

Namespace:  System.IO.Ports
Assembly:  System (in System.dll)
Visual Basic (Declaration)
Public Enumeration StopBits
Visual Basic (Usage)
Dim instance As StopBits
C#
public enum StopBits
Visual C++
public enum class StopBits
JScript
public enum StopBits
Member nameDescription
Supported by the .NET Compact FrameworkNoneNo stop bits are used. This value is not supported. Setting the StopBits property to None raises an ArgumentOutOfRangeException.
Supported by the .NET Compact FrameworkOneOne stop bit is used.
Supported by the .NET Compact FrameworkTwoTwo stop bits are used.
Supported by the .NET Compact FrameworkOnePointFive1.5 stop bits are used.

This enumeration specifies the number of stop bits to use. Stop bits separate each unit of data on an asynchronous serial connection. They are also sent continuously when no data is available for transmission.

The None option is not supported. Setting the StopBits property to None raises an ArgumentOutOfRangeException.

The following code example displays the possible values of the StopBits enumeration to the console, then prompts the user to choose one. This code example is part of a larger code example provided for the SerialPort class.

Visual Basic
Public Shared Function SetPortStopBits(ByVal defaultPortStopBits As StopBits) As StopBits
    Dim newStopBits As String

    Console.WriteLine("Available Stop Bits options:")
    Dim s As String
    For Each s In [Enum].GetNames(GetType(StopBits))
        Console.WriteLine("   {0}", s)
    Next s

    Console.Write("Stop Bits({0}):", defaultPortStopBits.ToString())
    newStopBits = Console.ReadLine()

    If newStopBits = "" Then
        newStopBits = defaultPortStopBits.ToString()
    End If

    Return CType([Enum].Parse(GetType(StopBits), newStopBits), StopBits)
End Function
C#
public static StopBits SetPortStopBits(StopBits defaultPortStopBits)
{
    string stopBits;

    Console.WriteLine("Available Stop Bits options:");
    foreach (string s in Enum.GetNames(typeof(StopBits)))
    {
        Console.WriteLine("   {0}", s);
    }

    Console.Write("Stop Bits({0}):", defaultPortStopBits.ToString());
    stopBits = Console.ReadLine();

    if (stopBits == "")
    {
        stopBits = defaultPortStopBits.ToString();
    }

    return (StopBits)Enum.Parse(typeof(StopBits), stopBits);
}

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
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