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PowerTCP SSL Sockets for .NET |
| Dart.PowerTCP.SslSockets Namespace > Tcp Class : EndSend Event (Tcp) |
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PowerTCP SSL Sockets for .NET |
| Dart.PowerTCP.SslSockets Namespace > Tcp Class : EndSend Event (Tcp) |
Raised when the BeginSend request completes.
[Visual Basic]
<CategoryAttribute("Connection")>
<DescriptionAttribute("Raised when the BeginSend() request completes")>
Public Event EndSend() As SegmentEventHandler[C#]
[CategoryAttribute("Connection")]
[DescriptionAttribute("Raised when the BeginSend() request completes")]
public event SegmentEventHandler EndSend();[C++]
[CategoryAttribute("Connection")]
[DescriptionAttribute("Raised when the BeginSend() request completes")]
public: __event SegmentEventHandler* EndSend();[C++/CLI]
[CategoryAttribute("Connection")]
[DescriptionAttribute("Raised when the BeginSend() request completes")]
public:
event SegmentEventHandler^ EndSend();The event handler receives an argument of type SegmentEventArgs containing data related to this event. The following SegmentEventArgs properties provide information specific to this event.
| Property | Description |
|---|---|
| Exception | Gets any exception which occurred during the asynchronous operation. |
| Segment | The Segment object referencing the data that was sent or received. |
| State | Gets the object that was included as part of the associated method call. |
This event is raised when the asynchronous method call BeginSend completes. A SegmentEventArgs object is passed into the event, containing information about the event, such as the data sent.
If any errors occurred during the asynchronous operation, they would be returned in the SegmentEventArgs object, check Exception to check for any exception.
For more information on using events using PowerTCP.NET within the Visual Studio.NET environment, see the topic, Using Events In PowerTCP.
If you are using the Tcp component as a reference, you must create a method to handle the event yourself.
This event MUST be implemented if you are using the BeginSend method.
The following example demonstrates asynchronous receiving and sending of data.
[Visual Basic]
Private Sub AsynchTcpDemo()
' Attempt to connect to an echo port.
Try
Tcp1.Connect("myserver", 7)
Catch ex As Exception
Return
End Try
' Send data, since we are connected to an echo port, the same data should be returned.
' The following code demonstrates asynchronously sending data. When data has been sent
' the EndSend event will be raised.
Dim buffer() As Byte = System.Text.Encoding.Default.GetBytes("a")
Tcp1.BeginSend(buffer, 0, buffer.Length, Net.Sockets.SocketFlags.None, Nothing)
End Sub
Private Sub Tcp1_EndSend(ByVal sender As Object, ByVal e As Dart.PowerTCP.SegmentEventArgs) Handles Tcp1.EndSend
' Check for exception
If e.Exception Is Nothing Then
' Send is complete. Display info about the data sent.
Debug.WriteLine("Byte count sent: " + e.Segment.Count)
Debug.WriteLine("Data sent: " + e.Segment.ToString())
Dim buffer(Tcp1.ReceiveBufferSize) As Byte
' Receive the data. The EndReceive event will be raised upon completion.
Tcp1.BeginReceive(buffer, 0, buffer.Length, Net.Sockets.SocketFlags.None, Nothing)
End If
End Sub
Private Sub Tcp1_EndReceive(ByVal sender As Object, ByVal e As Dart.PowerTCP.SegmentEventArgs) Handles Tcp1.EndReceive
' Check for exception
If e.Exception Is Nothing Then
' Receive is complete. Display info about the data sent.
Debug.WriteLine("Byte count received: " + e.Segment.Count)
Debug.WriteLine("Data received: " + e.Segment.ToString())
' Close the connection
Tcp1.Close()
End If
End Sub
[C#]
private void AsynchTcpDemo()
{
// Attempt to connect to an echo port.
try
{
tcp1.Connect("myserver", 7);
}
catch(Exception ex)
{return;}
// Send data, since we are connected to an echo port, the same data should be returned.
// The following code demonstrates asynchronously sending data. When data has been sent
// the EndSend event will be raised.
byte[] buffer = System.Text.Encoding.Default.GetBytes("a");
tcp1.BeginSend(buffer, 0, buffer.Length, System.Net.Sockets.SocketFlags.None, null);
}
private void tcp1_EndSend(object
sender, Dart.PowerTCP.SegmentEventArgs e)
{
// Check for exception
if(e.Exception == null)
{
// Send is complete. Display info about the data sent.
Debug.WriteLine("Byte count sent: " + e.Segment.Count);
Debug.WriteLine("Data sent: " + e.Segment.ToString());
byte[] buffer = new
byte[tcp1.ReceiveBufferSize];
// Receive the data. The EndReceive event will be raised upon completion.
tcp1.BeginReceive(buffer, 0, buffer.Length, System.Net.Sockets.SocketFlags.None,
null);
}
}
private void tcp1_EndReceive(object
sender, Dart.PowerTCP.SegmentEventArgs e)
{
// Check for exception
if(e.Exception == null)
{
// Receive is complete. Display info about the data sent.
Debug.WriteLine("Byte count received: " + e.Segment.Count);
Debug.WriteLine("Data received: " +
e.Segment.ToString());
// Close the connection
tcp1.Close();
}
}
Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family
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Documentation version 1.1.2.0.
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