WebClient.UploadDataCompleted Kejadian

Definisi

Ruang nama:

System.Net

Rakitan:

System.Net.WebClient.dll

Sumber:

WebClient.cs

Terjadi ketika operasi unggahan data asinkron selesai.

public:
 event System::Net::UploadDataCompletedEventHandler ^ UploadDataCompleted;

public event System.Net.UploadDataCompletedEventHandler? UploadDataCompleted;

member this.UploadDataCompleted : System.Net.UploadDataCompletedEventHandler 

Public Custom Event UploadDataCompleted As UploadDataCompletedEventHandler 

Jenis Acara

UploadDataCompletedEventHandler

Contoh

Contoh kode berikut menunjukkan pengaturan penanganan aktivitas untuk kejadian ini.

void UploadDataInBackground3( 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 );

   client->UploadDataCompleted += gcnew UploadDataCompletedEventHandler( UploadDataCallback3 );
   client->UploadDataAsync( uri, data );
}

public static void UploadDataInBackground3(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);

    client.UploadDataCompleted += new UploadDataCompletedEventHandler(UploadDataCallback3);
    client.UploadDataAsync(uri, data);
}

Public Shared Sub UploadDataInBackground3(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)
    AddHandler client.UploadDataCompleted, AddressOf UploadDataCallback3
                Dim uri as Uri = New Uri(address)
    client.UploadDataAsync(uri, data)
End Sub

Contoh kode berikut menunjukkan implementasi handler untuk kejadian ini.

void UploadDataCallback3( 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 UploadDataCallback3(Object sender, UploadDataCompletedEventArgs e)
{
    byte[] data = (byte[])e.Result;
    string reply = System.Text.Encoding.UTF8.GetString(data);

    Console.WriteLine(reply);
}

Private Shared Sub UploadDataCallback3(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

Keterangan

Hati

WebRequest, HttpWebRequest, ServicePoint, dan WebClient usang, dan Anda tidak boleh menggunakannya untuk pengembangan baru. Gunakan HttpClient sebagai gantinya.

Kejadian ini dinaikkan setiap kali operasi pengunggah data asinkron selesai. Unggahan data asinkron dimulai dengan memanggil metode UploadDataAsync.

UploadDataCompletedEventHandler adalah delegasi untuk peristiwa ini. Kelas UploadDataCompletedEventArgs menyediakan penanganan aktivitas dengan data peristiwa.

Untuk informasi selengkapnya tentang cara menangani peristiwa, lihat Menangani dan Meningkatkan Peristiwa.