UploadDataCompletedEventArgs Clase

Definición

Espacio de nombres:

System.Net

Ensamblado:

System.Net.WebClient.dll

Source:

WebClient.cs

Proporciona datos para el evento UploadDataCompleted.

public ref class UploadDataCompletedEventArgs : System::ComponentModel::AsyncCompletedEventArgs

public class UploadDataCompletedEventArgs : System.ComponentModel.AsyncCompletedEventArgs

type UploadDataCompletedEventArgs = class
    inherit AsyncCompletedEventArgs

Public Class UploadDataCompletedEventArgs
Inherits AsyncCompletedEventArgs

Herencia

Object

EventArgs

AsyncCompletedEventArgs

UploadDataCompletedEventArgs

Ejemplos

En el ejemplo de código siguiente se muestra la carga asincrónica de datos.

void UploadDataInBackground2( String^ address )
{
   WebClient^ client = gcnew WebClient;
   Uri ^uri = gcnew Uri(address);
   String^ text = "Time = 12:00am temperature = 50";
   array<Byte>^data = System::Text::Encoding::UTF8->GetBytes( text );
   String^ method = "POST";

   client->UploadDataCompleted += gcnew UploadDataCompletedEventHandler( UploadDataCallback2 );
   client->UploadDataAsync( uri, method, data );
}

public static void UploadDataInBackground2(string address)
{
    WebClient client = new WebClient();
    Uri uri = new Uri(address);
    string text = "Time = 12:00am temperature = 50";
    byte[] data = System.Text.Encoding.UTF8.GetBytes(text);
    string method = "POST";

    client.UploadDataCompleted += new UploadDataCompletedEventHandler(UploadDataCallback2);
    client.UploadDataAsync(uri, method, data);
}

Public Shared Sub UploadDataInBackground2(ByVal address As String)

    Dim client As WebClient = New WebClient()
    Dim text As String = "Time = 12:00am temperature = 50"
    Dim data() As Byte = System.Text.Encoding.UTF8.GetBytes(text)
    Dim method As String = "POST"

    AddHandler client.UploadDataCompleted, AddressOf UploadDataCallback2
    Dim uri as Uri = New Uri(address)
                client.UploadDataAsync(uri, method, data)
End Sub

Se llama al método siguiente cuando se completa la carga.

void UploadDataCallback2( Object^ /*sender*/, UploadDataCompletedEventArgs^ e )
{
   array<Byte>^data = dynamic_cast<array<Byte>^>(e->Result);
   String^ reply = System::Text::Encoding::UTF8->GetString( data );
   Console::WriteLine( reply );
}

private static void UploadDataCallback2(Object sender, UploadDataCompletedEventArgs e)
{
    byte[] data = (byte[])e.Result;
    string reply = System.Text.Encoding.UTF8.GetString(data);

    Console.WriteLine(reply);
}

Private Shared Sub UploadDataCallback2(ByVal sender As Object, ByVal e As UploadDataCompletedEventArgs)

    Dim data() As Byte = CType(e.Result, Byte())
    Dim reply As String = System.Text.Encoding.UTF8.GetString(data)

    Console.WriteLine(reply)
End Sub

Comentarios

Las instancias de esta clase se pasan a .UploadDataCompletedEventHandler

Propiedades

Cancelled	Obtiene un valor que indica si se ha cancelado una operación asincrónica. (Heredado de AsyncCompletedEventArgs)
Error	Obtiene un valor que indica el error que se produjo durante una operación asincrónica. (Heredado de AsyncCompletedEventArgs)
Result	Obtiene la respuesta del servidor a la operación de carga de datos iniciada mediante una llamada al método UploadDataAsync.
UserState	Obtiene el identificador único de la tarea asincrónica. (Heredado de AsyncCompletedEventArgs)

Métodos

Equals(Object)	Determina si el objeto especificado es igual que el objeto actual. (Heredado de Object)
GetHashCode()	Sirve como la función hash predeterminada. (Heredado de Object)
GetType()	Obtiene el Type de la instancia actual. (Heredado de Object)
MemberwiseClone()	Crea una copia superficial del Object actual. (Heredado de Object)
RaiseExceptionIfNecessary()	Genera una excepción proporcionada por el usuario si se ha producido un error en una operación asincrónica. (Heredado de AsyncCompletedEventArgs)
ToString()	Devuelve una cadena que representa el objeto actual. (Heredado de Object)