WebClient.WriteStreamClosed 事件
重要
部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。
警告
This API supports the .NET Framework infrastructure and is not intended to be used directly from your code.
發生於使用寫入數據流將數據寫入資源的異步操作關閉時。
public:
event System::Net::WriteStreamClosedEventHandler ^ WriteStreamClosed;C#
[System.Obsolete("This API supports the .NET Framework infrastructure and is not intended to be used directly from your code.", true)]
public event System.Net.WriteStreamClosedEventHandler? WriteStreamClosed;C#
[System.Obsolete("This API supports the .NET Framework infrastructure and is not intended to be used directly from your code.", true)]
public event System.Net.WriteStreamClosedEventHandler WriteStreamClosed;[<System.Obsolete("This API supports the .NET Framework infrastructure and is not intended to be used directly from your code.", true)>]
member this.WriteStreamClosed : System.Net.WriteStreamClosedEventHandler Public Custom Event WriteStreamClosed As WriteStreamClosedEventHandler - 屬性
注意
WebRequest、HttpWebRequest、ServicePoint和 WebClient 已經過時，您不應該將它們用於新的開發。 請改用 HttpClient。
每次異步操作使用寫入數據流將數據寫入資源時，都會引發此事件。 這些作業會導致呼叫 OpenWriteTaskAsync 方法。
WriteStreamClosedEventHandler 是這個事件的委派。 WriteStreamClosedEventArgs 類別會提供事件處理程式與事件數據。
如需如何處理事件的詳細資訊，請參閱 處理和引發事件。
| 產品 | 版本 (已過時) |
|---|---|
| .NET | (Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9) |
| .NET Framework | (4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1) |
