SerialPort 類別

定義

表示序列埠資源。Represents a serial port resource.

public ref class SerialPort : System::ComponentModel::Component
public class SerialPort : System.ComponentModel.Component
type SerialPort = class
    inherit Component
Public Class SerialPort
Inherits Component
繼承

範例

下列程式碼範例將示範如何使用 SerialPort 類別,讓兩個使用者能夠從兩部不同的電腦進行交談,並由 null 數據機纜線連接。The following code example demonstrates the use of the SerialPort class to allow two users to chat from two separate computers connected by a null modem cable. 在此範例中,系統會提示使用者輸入通訊埠設定和使用者名稱,然後再進行交談。In this example, the users are prompted for the port settings and a username before chatting. 這兩部電腦都必須執行程式,才能達到此範例的完整功能。Both computers must be executing the program to achieve full functionality of this example.

#using <System.dll>

using namespace System;
using namespace System::IO::Ports;
using namespace System::Threading;

public ref class PortChat
{
private:
    static bool _continue;
    static SerialPort^ _serialPort;

public:
    static void Main()
    {
        String^ name;
        String^ message;
        StringComparer^ stringComparer = StringComparer::OrdinalIgnoreCase;
        Thread^ readThread = gcnew Thread(gcnew ThreadStart(PortChat::Read));

        // Create a new SerialPort object with default settings.
        _serialPort = gcnew SerialPort();

        // Allow the user to set the appropriate properties.
        _serialPort->PortName = SetPortName(_serialPort->PortName);
        _serialPort->BaudRate = SetPortBaudRate(_serialPort->BaudRate);
        _serialPort->Parity = SetPortParity(_serialPort->Parity);
        _serialPort->DataBits = SetPortDataBits(_serialPort->DataBits);
        _serialPort->StopBits = SetPortStopBits(_serialPort->StopBits);
        _serialPort->Handshake = SetPortHandshake(_serialPort->Handshake);

        // Set the read/write timeouts
        _serialPort->ReadTimeout = 500;
        _serialPort->WriteTimeout = 500;

        _serialPort->Open();
        _continue = true;
        readThread->Start();

        Console::Write("Name: ");
        name = Console::ReadLine();

        Console::WriteLine("Type QUIT to exit");

        while (_continue)
        {
            message = Console::ReadLine();

            if (stringComparer->Equals("quit", message))
            {
                _continue = false;
            }
            else
            {
                _serialPort->WriteLine(
                    String::Format("<{0}>: {1}", name, message) );
            }
        }

        readThread->Join();
        _serialPort->Close();
    }

    static void Read()
    {
        while (_continue)
        {
            try
            {
                String^ message = _serialPort->ReadLine();
                Console::WriteLine(message);
            }
            catch (TimeoutException ^) { }
        }
    }

    static String^ SetPortName(String^ defaultPortName)
    {
        String^ portName;

        Console::WriteLine("Available Ports:");
        for each (String^ s in SerialPort::GetPortNames())
        {
            Console::WriteLine("   {0}", s);
        }

        Console::Write("Enter COM port value (Default: {0}): ", defaultPortName);
        portName = Console::ReadLine();

        if (portName == "")
        {
            portName = defaultPortName;
        }
        return portName;
    }

    static Int32 SetPortBaudRate(Int32 defaultPortBaudRate)
    {
        String^ baudRate;

        Console::Write("Baud Rate(default:{0}): ", defaultPortBaudRate);
        baudRate = Console::ReadLine();

        if (baudRate == "")
        {
            baudRate = defaultPortBaudRate.ToString();
        }

        return Int32::Parse(baudRate);
    }

    static Parity SetPortParity(Parity defaultPortParity)
    {
        String^ parity;

        Console::WriteLine("Available Parity options:");
        for each (String^ s in Enum::GetNames(Parity::typeid))
        {
            Console::WriteLine("   {0}", s);
        }
        
        Console::Write("Enter Parity value (Default: {0}):", defaultPortParity.ToString());
        parity = Console::ReadLine();

        if (parity == "")
        {
            parity = defaultPortParity.ToString();
        }

        return (Parity)Enum::Parse(Parity::typeid, parity);
    }

    static Int32 SetPortDataBits(Int32 defaultPortDataBits)
    {
        String^ dataBits;

        Console::Write("Enter DataBits value (Default: {0}): ", defaultPortDataBits);
        dataBits = Console::ReadLine();

        if (dataBits == "")
        {
            dataBits = defaultPortDataBits.ToString();
        }

        return Int32::Parse(dataBits);
    }

    static StopBits SetPortStopBits(StopBits defaultPortStopBits)
    {
        String^ stopBits;

        Console::WriteLine("Available Stop Bits options:");
        for each (String^ s in Enum::GetNames(StopBits::typeid))
        {
            Console::WriteLine("   {0}", s);
        }

        Console::Write("Enter StopBits value (None is not supported and \n" +
            "raises an ArgumentOutOfRangeException. \n (Default: {0}):", defaultPortStopBits.ToString());
        stopBits = Console::ReadLine();

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

        return (StopBits)Enum::Parse(StopBits::typeid, stopBits);
    }

    static Handshake SetPortHandshake(Handshake defaultPortHandshake)
    {
        String^ handshake;

        Console::WriteLine("Available Handshake options:");
        for each (String^ s in Enum::GetNames(Handshake::typeid))
        {
            Console::WriteLine("   {0}", s);
        }

        Console::Write("Enter Handshake value (Default: {0}):", defaultPortHandshake.ToString());
        handshake = Console::ReadLine();

        if (handshake == "")
        {
            handshake = defaultPortHandshake.ToString();
        }

        return (Handshake)Enum::Parse(Handshake::typeid, handshake);
    }
};

int main()
{
    PortChat::Main();
}
// Use this code inside a project created with the Visual C# > Windows Desktop > Console Application template.
// Replace the code in Program.cs with this code.

using System;
using System.IO.Ports;
using System.Threading;

public class PortChat
{
    static bool _continue;
    static SerialPort _serialPort;

    public static void Main()
    {
        string name;
        string message;
        StringComparer stringComparer = StringComparer.OrdinalIgnoreCase;
        Thread readThread = new Thread(Read);

        // Create a new SerialPort object with default settings.
        _serialPort = new SerialPort();

        // Allow the user to set the appropriate properties.
        _serialPort.PortName = SetPortName(_serialPort.PortName);
        _serialPort.BaudRate = SetPortBaudRate(_serialPort.BaudRate);
        _serialPort.Parity = SetPortParity(_serialPort.Parity);
        _serialPort.DataBits = SetPortDataBits(_serialPort.DataBits);
        _serialPort.StopBits = SetPortStopBits(_serialPort.StopBits);
        _serialPort.Handshake = SetPortHandshake(_serialPort.Handshake);

        // Set the read/write timeouts
        _serialPort.ReadTimeout = 500;
        _serialPort.WriteTimeout = 500;

        _serialPort.Open();
        _continue = true;
        readThread.Start();

        Console.Write("Name: ");
        name = Console.ReadLine();

        Console.WriteLine("Type QUIT to exit");

        while (_continue)
        {
            message = Console.ReadLine();

            if (stringComparer.Equals("quit", message))
            {
                _continue = false;
            }
            else
            {
                _serialPort.WriteLine(
                    String.Format("<{0}>: {1}", name, message));
            }
        }

        readThread.Join();
        _serialPort.Close();
    }

    public static void Read()
    {
        while (_continue)
        {
            try
            {
                string message = _serialPort.ReadLine();
                Console.WriteLine(message);
            }
            catch (TimeoutException) { }
        }
    }

    // Display Port values and prompt user to enter a port.
    public static string SetPortName(string defaultPortName)
    {
        string portName;

        Console.WriteLine("Available Ports:");
        foreach (string s in SerialPort.GetPortNames())
        {
            Console.WriteLine("   {0}", s);
        }

        Console.Write("Enter COM port value (Default: {0}): ", defaultPortName);
        portName = Console.ReadLine();

        if (portName == "" || !(portName.ToLower()).StartsWith("com"))
        {
            portName = defaultPortName;
        }
        return portName;
    }
    // Display BaudRate values and prompt user to enter a value.
    public static int SetPortBaudRate(int defaultPortBaudRate)
    {
        string baudRate;

        Console.Write("Baud Rate(default:{0}): ", defaultPortBaudRate);
        baudRate = Console.ReadLine();

        if (baudRate == "")
        {
            baudRate = defaultPortBaudRate.ToString();
        }

        return int.Parse(baudRate);
    }

    // Display PortParity values and prompt user to enter a value.
    public static Parity SetPortParity(Parity defaultPortParity)
    {
        string parity;

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

        Console.Write("Enter Parity value (Default: {0}):", defaultPortParity.ToString(), true);
        parity = Console.ReadLine();

        if (parity == "")
        {
            parity = defaultPortParity.ToString();
        }

        return (Parity)Enum.Parse(typeof(Parity), parity, true);
    }
    // Display DataBits values and prompt user to enter a value.
    public static int SetPortDataBits(int defaultPortDataBits)
    {
        string dataBits;

        Console.Write("Enter DataBits value (Default: {0}): ", defaultPortDataBits);
        dataBits = Console.ReadLine();

        if (dataBits == "")
        {
            dataBits = defaultPortDataBits.ToString();
        }

        return int.Parse(dataBits.ToUpperInvariant());
    }

    // Display StopBits values and prompt user to enter a value.
    public static StopBits SetPortStopBits(StopBits defaultPortStopBits)
    {
        string stopBits;

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

        Console.Write("Enter StopBits value (None is not supported and \n" +
         "raises an ArgumentOutOfRangeException. \n (Default: {0}):", defaultPortStopBits.ToString());
        stopBits = Console.ReadLine();

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

        return (StopBits)Enum.Parse(typeof(StopBits), stopBits, true);
    }
    public static Handshake SetPortHandshake(Handshake defaultPortHandshake)
    {
        string handshake;

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

        Console.Write("Enter Handshake value (Default: {0}):", defaultPortHandshake.ToString());
        handshake = Console.ReadLine();

        if (handshake == "")
        {
            handshake = defaultPortHandshake.ToString();
        }

        return (Handshake)Enum.Parse(typeof(Handshake), handshake, true);
    }
}
' Use this code inside a project created with the Visual Basic > Windows Desktop > Console Application template.
' Replace the default code in Module1.vb with this code. Then right click the project in Solution Explorer,
' select Properties, and set the Startup Object to PortChat.

Imports System.IO.Ports
Imports System.Threading

Public Class PortChat
    Shared _continue As Boolean
    Shared _serialPort As SerialPort

    Public Shared Sub Main()
        Dim name As String
        Dim message As String
        Dim stringComparer__1 As StringComparer = StringComparer.OrdinalIgnoreCase
        Dim readThread As New Thread(AddressOf Read)

        ' Create a new SerialPort object with default settings.
        _serialPort = New SerialPort()

        ' Allow the user to set the appropriate properties.
        _serialPort.PortName = SetPortName(_serialPort.PortName)
        _serialPort.BaudRate = SetPortBaudRate(_serialPort.BaudRate)
        _serialPort.Parity = SetPortParity(_serialPort.Parity)
        _serialPort.DataBits = SetPortDataBits(_serialPort.DataBits)
        _serialPort.StopBits = SetPortStopBits(_serialPort.StopBits)
        _serialPort.Handshake = SetPortHandshake(_serialPort.Handshake)

        ' Set the read/write timeouts
        _serialPort.ReadTimeout = 500
        _serialPort.WriteTimeout = 500

        _serialPort.Open()
        _continue = True
        readThread.Start()

        Console.Write("Name: ")
        name = Console.ReadLine()

        Console.WriteLine("Type QUIT to exit")

        While _continue
            message = Console.ReadLine()

            If stringComparer__1.Equals("quit", message) Then
                _continue = False
            Else
                _serialPort.WriteLine([String].Format("<{0}>: {1}", name, message))
            End If
        End While

        readThread.Join()
        _serialPort.Close()
    End Sub

    Public Shared Sub Read()
        While _continue
            Try
                Dim message As String = _serialPort.ReadLine()
                Console.WriteLine(message)
            Catch generatedExceptionName As TimeoutException
            End Try
        End While
    End Sub

    ' Display Port values and prompt user to enter a port.
    Public Shared Function SetPortName(defaultPortName As String) As String
        Dim portName As String

        Console.WriteLine("Available Ports:")
        For Each s As String In SerialPort.GetPortNames()
            Console.WriteLine("   {0}", s)
        Next

        Console.Write("Enter COM port value (Default: {0}): ", defaultPortName)
        portName = Console.ReadLine()

        If portName = "" OrElse Not (portName.ToLower()).StartsWith("com") Then
            portName = defaultPortName
        End If
        Return portName
    End Function
    ' Display BaudRate values and prompt user to enter a value.
    Public Shared Function SetPortBaudRate(defaultPortBaudRate As Integer) As Integer
        Dim baudRate As String

        Console.Write("Baud Rate(default:{0}): ", defaultPortBaudRate)
        baudRate = Console.ReadLine()

        If baudRate = "" Then
            baudRate = defaultPortBaudRate.ToString()
        End If

        Return Integer.Parse(baudRate)
    End Function

    ' Display PortParity values and prompt user to enter a value.
    Public Shared Function SetPortParity(defaultPortParity As Parity) As Parity
        Dim parity As String

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

        Console.Write("Enter Parity value (Default: {0}):", defaultPortParity.ToString(), True)
        parity = Console.ReadLine()

        If parity = "" Then
            parity = defaultPortParity.ToString()
        End If

        Return CType([Enum].Parse(GetType(Parity), parity, True), Parity)
    End Function
    ' Display DataBits values and prompt user to enter a value.
    Public Shared Function SetPortDataBits(defaultPortDataBits As Integer) As Integer
        Dim dataBits As String

        Console.Write("Enter DataBits value (Default: {0}): ", defaultPortDataBits)
        dataBits = Console.ReadLine()

        If dataBits = "" Then
            dataBits = defaultPortDataBits.ToString()
        End If

        Return Integer.Parse(dataBits.ToUpperInvariant())
    End Function
    ' Display StopBits values and prompt user to enter a value.

    Public Shared Function SetPortStopBits(defaultPortStopBits As StopBits) As StopBits
        Dim stopBits As String

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

        Console.Write("Enter StopBits value (None is not supported and " &
                      vbLf & "raises an ArgumentOutOfRangeException. " &
                      vbLf & " (Default: {0}):", defaultPortStopBits.ToString())
        stopBits = Console.ReadLine()

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

        Return CType([Enum].Parse(GetType(StopBits), stopBits, True), StopBits)
    End Function
    Public Shared Function SetPortHandshake(defaultPortHandshake As Handshake) As Handshake
        Dim handshake As String

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

        Console.Write("Enter Handshake value (Default: {0}):", defaultPortHandshake.ToString())
        handshake = Console.ReadLine()

        If handshake = "" Then
            handshake = defaultPortHandshake.ToString()
        End If

        Return CType([Enum].Parse(GetType(Handshake), handshake, True), Handshake)
    End Function
End Class

備註

使用此類別來控制序列埠檔案資源。Use this class to control a serial port file resource. 這個類別會提供同步和事件驅動的 i/o、pin 和中斷狀態的存取權,以及序列驅動程式屬性的存取權。This class provides synchronous and event-driven I/O, access to pin and break states, and access to serial driver properties. 此外,這個類別的功能可以包裝在內部 Stream 物件中,可透過 BaseStream 屬性存取,並傳遞至包裝或使用資料流程的類別。Additionally, the functionality of this class can be wrapped in an internal Stream object, accessible through the BaseStream property, and passed to classes that wrap or use streams.

SerialPort 類別支援下列編碼: ASCIIEncodingUTF8EncodingUnicodeEncodingUTF32Encoding和 mscorlib.dll 中定義的任何編碼,其中字碼頁小於50000,或字碼頁為54936。The SerialPort class supports the following encodings: ASCIIEncoding, UTF8Encoding, UnicodeEncoding, UTF32Encoding, and any encoding defined in mscorlib.dll where the code page is less than 50000 or the code page is 54936. 您可以使用替代編碼,但是您必須使用 ReadByteWrite 方法,並自行執行編碼。You can use alternate encodings, but you must use the ReadByte or Write method and perform the encoding yourself.

您可以使用 GetPortNames 方法來取得目前電腦的有效埠。You use the GetPortNames method to retrieve the valid ports for the current computer.

如果 SerialPort 物件在讀取作業期間遭到封鎖,請勿中止執行緒。If a SerialPort object becomes blocked during a read operation, do not abort the thread. 相反地,請關閉基底資料流程或處置 SerialPort 物件。Instead, either close the base stream or dispose of the SerialPort object.

建構函式

SerialPort()

SerialPort 類別的新執行個體初始化。Initializes a new instance of the SerialPort class.

SerialPort(IContainer)

使用指定的 IContainer 物件,初始化 SerialPort 類別的新執行個體。Initializes a new instance of the SerialPort class using the specified IContainer object.

SerialPort(String)

使用指定的連接埠名稱,初始化 SerialPort 類別的新執行個體。Initializes a new instance of the SerialPort class using the specified port name.

SerialPort(String, Int32)

使用指定的連接埠名稱和傳輸速率,初始化 SerialPort 類別的新執行個體。Initializes a new instance of the SerialPort class using the specified port name and baud rate.

SerialPort(String, Int32, Parity)

使用指定的連接埠名稱、傳輸速率和同位位元,初始化 SerialPort 類別的新執行個體。Initializes a new instance of the SerialPort class using the specified port name, baud rate, and parity bit.

SerialPort(String, Int32, Parity, Int32)

使用指定的連接埠名稱、傳輸速率、同位位元和資料位元,初始化 SerialPort 類別的新執行個體。Initializes a new instance of the SerialPort class using the specified port name, baud rate, parity bit, and data bits.

SerialPort(String, Int32, Parity, Int32, StopBits)

使用指定的連接埠名稱、傳輸速率、同位位元、資料位元和停止位元,初始化 SerialPort 類別的新執行個體。Initializes a new instance of the SerialPort class using the specified port name, baud rate, parity bit, data bits, and stop bit.

欄位

InfiniteTimeout

指出不應該發生逾時。Indicates that no time-out should occur.

屬性

BaseStream

取得 SerialPort 物件的基礎 Stream 物件。Gets the underlying Stream object for a SerialPort object.

BaudRate

取得或設定序列傳輸速率。Gets or sets the serial baud rate.

BreakState

取得或設定中斷信號狀態。Gets or sets the break signal state.

BytesToRead

取得接收緩衝區中的資料位元組數。Gets the number of bytes of data in the receive buffer.

BytesToWrite

取得傳送緩衝區中的資料位元組數。Gets the number of bytes of data in the send buffer.

CanRaiseEvents

取得值,指出元件是否能引發事件。Gets a value indicating whether the component can raise an event.

(繼承來源 Component)
CDHolding

取得連接埠載波偵測線路的狀態。Gets the state of the Carrier Detect line for the port.

Container

取得包含 IContainerComponentGets the IContainer that contains the Component.

(繼承來源 Component)
CtsHolding

取得 Clear-to-Send 線路的狀態。Gets the state of the Clear-to-Send line.

DataBits

取得或設定每一位元組之資料位元的標準長度。Gets or sets the standard length of data bits per byte.

DesignMode

取得值,指出 Component 目前是否處於設計模式。Gets a value that indicates whether the Component is currently in design mode.

(繼承來源 Component)
DiscardNull

取得或設定值,指出在連接埠和接收緩衝區之間傳輸時是否忽略 null 位元組。Gets or sets a value indicating whether null bytes are ignored when transmitted between the port and the receive buffer.

DsrHolding

取得 Data Set Ready (DSR) 信號的狀態。Gets the state of the Data Set Ready (DSR) signal.

DtrEnable

取得或設定值,在序列通訊期間啟用 Data Terminal Ready (DTR) 信號。Gets or sets a value that enables the Data Terminal Ready (DTR) signal during serial communication.

Encoding

取得或設定文字傳輸前後轉換的位元組編碼方式。Gets or sets the byte encoding for pre- and post-transmission conversion of text.

Events

取得附加在這個 Component 上的事件處理常式清單。Gets the list of event handlers that are attached to this Component.

(繼承來源 Component)
Handshake

使用來自 Handshake 的值,取得或設定用於資料序列埠傳輸的交握通訊協定。Gets or sets the handshaking protocol for serial port transmission of data using a value from Handshake.

IsOpen

取得值,指出 SerialPort 物件的開啟或關閉狀態。Gets a value indicating the open or closed status of the SerialPort object.

NewLine

取得或設定值,用於解譯 ReadLine()WriteLine(String)方法呼叫的結尾。Gets or sets the value used to interpret the end of a call to the ReadLine() and WriteLine(String) methods.

Parity

取得或設定同位檢查通訊協定。Gets or sets the parity-checking protocol.

ParityReplace

取得或設定位元組,該位元組會在發生同位檢查錯誤時,取代資料流中的無效位元組。Gets or sets the byte that replaces invalid bytes in a data stream when a parity error occurs.

PortName

取得或設定通訊連接埠,包括但不限於所有可用的 COM 連接埠。Gets or sets the port for communications, including but not limited to all available COM ports.

ReadBufferSize

取得或設定 SerialPort 輸入緩衝區的大小。Gets or sets the size of the SerialPort input buffer.

ReadTimeout

取得或設定讀取作業未完成時,發生逾時之前的毫秒數。Gets or sets the number of milliseconds before a time-out occurs when a read operation does not finish.

ReceivedBytesThreshold

取得或設定 DataReceived 事件發生之前,內部輸入緩衝區中的位元組數。Gets or sets the number of bytes in the internal input buffer before a DataReceived event occurs.

RtsEnable

取得或設定值,指出在序列通訊期間是否啟用 Request to Send (RTS) 信號。Gets or sets a value indicating whether the Request to Send (RTS) signal is enabled during serial communication.

Site

取得或設定 ComponentISiteGets or sets the ISite of the Component.

(繼承來源 Component)
StopBits

取得或設定每位元組之停止位元的標準數目。Gets or sets the standard number of stopbits per byte.

WriteBufferSize

取得或設定序列埠輸出緩衝區的大小。Gets or sets the size of the serial port output buffer.

WriteTimeout

取得或設定寫入作業未完成時,發生逾時之前的毫秒數。Gets or sets the number of milliseconds before a time-out occurs when a write operation does not finish.

方法

Close()

關閉連接埠連線,將 IsOpen 屬性設定為 false,並處置內部 Stream 物件。Closes the port connection, sets the IsOpen property to false, and disposes of the internal Stream object.

CreateObjRef(Type)

建立包含所有相關資訊的物件,這些資訊是產生用來與遠端物件通訊的所需 Proxy。Creates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object.

(繼承來源 MarshalByRefObject)
DiscardInBuffer()

捨棄序列驅動程式接收緩衝區的資料。Discards data from the serial driver's receive buffer.

DiscardOutBuffer()

捨棄序列驅動程式傳輸緩衝區的資料。Discards data from the serial driver's transmit buffer.

Dispose()

釋出 Component 所使用的全部資源。Releases all resources used by the Component.

(繼承來源 Component)
Dispose(Boolean)

釋放 SerialPort 使用的 Unmanaged 資源,並且選擇性地釋放 Managed 資源。Releases the unmanaged resources used by the SerialPort and optionally releases the managed resources.

Equals(Object)

判斷指定的物件是否等於目前的物件。Determines whether the specified object is equal to the current object.

(繼承來源 Object)
GetHashCode()

做為預設雜湊函式。Serves as the default hash function.

(繼承來源 Object)
GetLifetimeService()

擷取控制這個執行個體存留期 (Lifetime) 原則的目前存留期服務物件。Retrieves the current lifetime service object that controls the lifetime policy for this instance.

(繼承來源 MarshalByRefObject)
GetPortNames()

取得目前電腦序列埠名稱的陣列。Gets an array of serial port names for the current computer.

GetService(Type)

傳回表示 Component 或其 Container 所提供之服務的物件。Returns an object that represents a service provided by the Component or by its Container.

(繼承來源 Component)
GetType()

取得目前執行個體的 TypeGets the Type of the current instance.

(繼承來源 Object)
InitializeLifetimeService()

取得存留期服務物件,以控制這個執行個體的存留期原則。Obtains a lifetime service object to control the lifetime policy for this instance.

(繼承來源 MarshalByRefObject)
MemberwiseClone()

建立目前 Object 的淺層複製。Creates a shallow copy of the current Object.

(繼承來源 Object)
MemberwiseClone(Boolean)

建立目前 MarshalByRefObject 物件的淺層複本。Creates a shallow copy of the current MarshalByRefObject object.

(繼承來源 MarshalByRefObject)
Open()

開啟新的序列埠連線。Opens a new serial port connection.

Read(Byte[], Int32, Int32)

SerialPort 輸入緩衝區讀取大量位元組,並將它們寫入指定位移上的位元組陣列。Reads a number of bytes from the SerialPort input buffer and writes those bytes into a byte array at the specified offset.

Read(Char[], Int32, Int32)

SerialPort 輸入緩衝區讀取大量字元,並將它們寫入指定位移上的字元陣列。Reads a number of characters from the SerialPort input buffer and writes them into an array of characters at a given offset.

ReadByte()

SerialPort 輸入緩衝區同步讀取一個位元組。Synchronously reads one byte from the SerialPort input buffer.

ReadChar()

SerialPort 輸入緩衝區同步讀取一個字元。Synchronously reads one character from the SerialPort input buffer.

ReadExisting()

根據編碼方式,讀取 SerialPort 物件的資料流和輸入緩衝區中所有立即可用的位元組。Reads all immediately available bytes, based on the encoding, in both the stream and the input buffer of the SerialPort object.

ReadLine()

讀取輸入緩衝區 NewLine 值之前的內容。Reads up to the NewLine value in the input buffer.

ReadTo(String)

讀取在輸入緩衝區中指定 value 之前的字串。Reads a string up to the specified value in the input buffer.

ToString()

傳回任何包含 Component 名稱的 StringReturns a String containing the name of the Component, if any. 不應覆寫此方法。This method should not be overridden.

(繼承來源 Component)
Write(Byte[], Int32, Int32)

使用緩衝區中的資料,將指定的位元組數目寫入序列埠。Writes a specified number of bytes to the serial port using data from a buffer.

Write(Char[], Int32, Int32)

使用緩衝區中的資料,將指定的字元數目寫入序列埠。Writes a specified number of characters to the serial port using data from a buffer.

Write(String)

將指定的字串寫入序列埠。Writes the specified string to the serial port.

WriteLine(String)

將指定字串和 NewLine 值寫入輸出緩衝區。Writes the specified string and the NewLine value to the output buffer.

事件

DataReceived

表示已從 SerialPort 物件所代表的連接埠上接收資料。Indicates that data has been received through a port represented by the SerialPort object.

Disposed

Dispose() 方法的呼叫處置元件時,就會發生。Occurs when the component is disposed by a call to the Dispose() method.

(繼承來源 Component)
ErrorReceived

表示在 SerialPort 物件所代表的連接埠上已發生錯誤。Indicates that an error has occurred with a port represented by a SerialPort object.

PinChanged

表示在 SerialPort 物件所代表的連接埠上已發生非資料訊號事件。Indicates that a non-data signal event has occurred on the port represented by the SerialPort object.

適用於