WebClient.UploadProgressChanged 이벤트

정의

네임스페이스:

System.Net

어셈블리:

System.Net.WebClient.dll

Source:

WebClient.cs

비동기 업로드 작업을 통해 데이터 전체 또는 일부를 성공적으로 전송하면 발생합니다.

public:
 event System::Net::UploadProgressChangedEventHandler ^ UploadProgressChanged;

public event System.Net.UploadProgressChangedEventHandler? UploadProgressChanged;

member this.UploadProgressChanged : System.Net.UploadProgressChangedEventHandler 

Public Custom Event UploadProgressChanged As UploadProgressChangedEventHandler 

이벤트 유형

UploadProgressChangedEventHandler

예제

다음 코드 예제에서는이 이벤트에 대 한 이벤트 처리기를 설정 하는 방법을 보여 줍니다.

// Sample call: UploadFileInBackground2("http://www.contoso.com/fileUpload.aspx", "data.txt")
void UploadFileInBackground2( String^ address, String^ fileName )
{
   WebClient^ client = gcnew WebClient;
   Uri ^uri = gcnew Uri(address);

   client->UploadFileCompleted +=
     gcnew UploadFileCompletedEventHandler (UploadFileCallback2);

   // Specify a progress notification handler.
   client->UploadProgressChanged +=
       gcnew UploadProgressChangedEventHandler( UploadProgressCallback );
   client->UploadFileAsync( uri, "POST", fileName );
   Console::WriteLine( "File upload started." );
}

// Sample call: UploadFileInBackground2("http://www.contoso.com/fileUpload.aspx", "data.txt")
public static void UploadFileInBackground2(string address, string fileName)
{
    WebClient client = new WebClient();
    Uri uri = new Uri(address);

    client.UploadFileCompleted += new UploadFileCompletedEventHandler(UploadFileCallback2);

    // Specify a progress notification handler.
    client.UploadProgressChanged += new UploadProgressChangedEventHandler(UploadProgressCallback);
    client.UploadFileAsync(uri, "POST", fileName);
    Console.WriteLine("File upload started.");
}

'  Sample call: UploadFileInBackground2("http:' www.contoso.com/fileUpload.aspx", "data.txt")
Public Shared Sub UploadFileInBackground2(ByVal address As String, ByVal fileName As String)

    Dim client As WebClient = New WebClient()
                Dim uri as Uri =  New Uri(address)
    AddHandler client.UploadFileCompleted, AddressOf UploadFileCallback2

    '  Specify a progress notification handler.
    AddHandler client.UploadProgressChanged, AddressOf UploadProgressCallback
    client.UploadFileAsync(uri, "POST", fileName)
    Console.WriteLine("File upload started.")
End Sub

다음 코드 예제에서는이 이벤트에 대 한 처리기의 구현을 보여 있습니다.

static void UploadProgressCallback(Object^ sender,
          UploadProgressChangedEventArgs^ e)
      {
          // Displays the operation identifier, and the transfer progress.
          Console::WriteLine("{0}    uploaded {1} of {2} bytes. {3} % complete...",
              (String ^)e->UserState,
              e->BytesSent,
              e->TotalBytesToSend,
              e->ProgressPercentage);
      }
static void DownloadProgressCallback(Object^ sender,
          DownloadProgressChangedEventArgs^ e)
      {
          // Displays the operation identifier, and the transfer progress.
          Console::WriteLine("{0}    downloaded {1} of {2} bytes. {3} % complete...",
              (String ^)e->UserState,
              e->BytesReceived,
              e->TotalBytesToReceive,
              e->ProgressPercentage);
      }

private static void UploadProgressCallback(object sender, UploadProgressChangedEventArgs e)
{
    // Displays the operation identifier, and the transfer progress.
    Console.WriteLine("{0}    uploaded {1} of {2} bytes. {3} % complete...",
        (string)e.UserState,
        e.BytesSent,
        e.TotalBytesToSend,
        e.ProgressPercentage);
}
private static void DownloadProgressCallback(object sender, DownloadProgressChangedEventArgs e)
{
    // Displays the operation identifier, and the transfer progress.
    Console.WriteLine("{0}    downloaded {1} of {2} bytes. {3} % complete...",
        (string)e.UserState,
        e.BytesReceived,
        e.TotalBytesToReceive,
        e.ProgressPercentage);
}

Private Shared Sub UploadProgressCallback(ByVal sender As Object, ByVal e As UploadProgressChangedEventArgs)

    '  Displays the operation identifier, and the transfer progress.
    Console.WriteLine("{0}    uploaded {1} of {2} bytes. {3} % complete...", _
     CStr(e.UserState), e.BytesSent, e.TotalBytesToSend, e.ProgressPercentage)
End Sub
Private Shared Sub DownloadProgressCallback(ByVal sender As Object, ByVal e As DownloadProgressChangedEventArgs)

    '  Displays the operation identifier, and the transfer progress.
    Console.WriteLine("{0}    downloaded {1} of {2} bytes. {3} % complete...", _
     CStr(e.UserState), e.BytesReceived, e.TotalBytesToReceive, e.ProgressPercentage)
End Sub

설명

이 이벤트는 비동기 업로드가 진행될 때마다 발생합니다. 이 이벤트는 다음 방법 중 하나라도 사용하여 업로드를 시작할 때 발생합니다.

방법	설명
UploadDataAsync	호출 스레드를 Byte 차단하지 않고 리소스에 배열을 보냅니다.
UploadFileAsync	호출 스레드를 차단하지 않고 리소스에 로컬 파일을 보냅니다.
UploadValuesAsync	NameValueCollection 를 리소스에 보내고 호출 스레드를 Byte 차단하지 않고 응답이 포함된 배열을 반환합니다.

는 UploadProgressChangedEventHandler 이 이벤트의 대리자입니다. 클래스는 UploadProgressChangedEventArgs 이벤트 처리기에 이벤트 데이터를 제공합니다.

이벤트를 처리 하는 방법에 대 한 자세한 내용은 참조 하세요. 이벤트 처리 및 발생합니다.