NetworkStream.Writeable Propiedad

Definición

Espacio de nombres:

System.Net.Sockets

Ensamblado:

System.Net.Sockets.dll

Source:

NetworkStream.cs

Obtiene un valor que indica si NetworkStream admite la escritura.

protected:
 property bool Writeable { bool get(); void set(bool value); };

protected bool Writeable { get; set; }

member this.Writeable : bool with get, set

Protected Property Writeable As Boolean

Valor de propiedad

Boolean

true si se pueden escribir datos en la secuencia; en caso contrario, false. El valor predeterminado es true.

Ejemplos

En el ejemplo de código siguiente, la CanCommunicate propiedad comprueba la Writeable propiedad para determinar si NetworkStream se puede escribir.

#using <System.dll>

using namespace System;
using namespace System::Net;
using namespace System::Net::Sockets;

ref class MyNetworkStream_Sub_Class: public NetworkStream
{
public:
   MyNetworkStream_Sub_Class( System::Net::Sockets::Socket^ socket, bool ownsSocket )
      : NetworkStream( socket, ownsSocket )
   {
   }

   property bool IsConnected 
   {
      // You can use the Socket method to examine the underlying Socket.
      bool get()
      {
         return this->Socket->Connected;
      }
   }

   property bool CanCommunicate 
   {
      bool get()
      {
         if ( !this->Readable | !this->Writeable )
         {
            return false;
         }
         else
         {
            return true;
         }
      }
   }

using System;
using System.Net;
using System.Net.Sockets;

public class MyNetworkStream_Sub_Class : NetworkStream
{

    public MyNetworkStream_Sub_Class(Socket socket, bool ownsSocket) :
        base(socket, ownsSocket)
    {
    }
    // You can use the Socket method to examine the underlying Socket.
    public bool IsConnected
    {
        get
        {
            return this.Socket.Connected;
        }
    }

    public bool CanCommunicate
    {
        get
        {
            if (!this.Readable | !this.Writeable)
            {
                return false;
            }
            else
            {
                return true;
            }
        }
    }

Public Class MyNetworkStream_Sub_Class
   Inherits NetworkStream
   
   
   Public Sub New(socket As Socket, ownsSocket As Boolean)
      MyBase.New(socket, ownsSocket)
   End Sub
   
   ' Suppose you wanted a property for determining if Socket is connected. You can use
   ' the protected method 'Socket' to return underlying Socket.
   
   Public ReadOnly Property IsConnected() As Boolean
      Get
         Return Me.Socket.Connected
      End Get
   End Property
   
   ' You could also use public NetworkStream methods 'CanRead' and 'CanWrite'.
   
   Public ReadOnly Property CanCommunicate() As Boolean
      Get
         If Not Me.Readable Or Not Me.Writeable  Then
            Return False
         Else
            Return True
         End If
      End Get
   End Property
    
   Public Shared Sub DoSomethingSignificant()
   End Sub
    ' Do something significant in here

Comentarios

Debe derivar de la NetworkStream clase para usar la Writeable propiedad . Si Writeable es true, NetworkStream permite llamadas al Write método . También puede determinar si un objeto NetworkStream se puede escribir comprobando la propiedad accesible CanWrite públicamente.

La Writeable propiedad se establece cuando NetworkStream se inicializa .

Consulte también

• CanWrite
• Readable