WebClient.UploadDataCompleted 事件

定义

命名空间:

System.Net

程序集:

System.Net.WebClient.dll

程序集:

System.dll

程序集:

netstandard.dll

在异步数据上载操作完成时发生。

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

public event System.Net.UploadDataCompletedEventHandler? UploadDataCompleted;

public event System.Net.UploadDataCompletedEventHandler UploadDataCompleted;

member this.UploadDataCompleted : System.Net.UploadDataCompletedEventHandler 

Public Custom Event UploadDataCompleted As UploadDataCompletedEventHandler 

Public Event UploadDataCompleted As UploadDataCompletedEventHandler 

事件类型

UploadDataCompletedEventHandler

示例

下面的代码示例演示如何设置此事件的事件处理程序。

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

注解

每次异步数据上传操作完成时都会引发此事件。 异步数据上传通过调用 UploadDataAsync 方法启动。

此 UploadDataCompletedEventHandler 事件的委托。 该 UploadDataCompletedEventArgs 类为事件处理程序提供事件数据。

有关如何处理事件的详细信息，请参阅 处理和引发事件。