BackgroundDownloader.RequestUnconstrainedDownloadsAsync 方法

定義

命名空間:

Windows.Networking.BackgroundTransfer

注意

requestUnconstrainedDownloadsAsync 可能會在版本 1607 Windows 10之後變更或無法使用。 請改用 CreateDownloadAsync。

用來要求不受限制的下載作業。 呼叫這個方法時，會提供使用者 UI 提示，讓他們可用來指出其同意未受限制的作業。在裝置在電池上執行時，未受限制的傳輸作業會執行，而不會有通常與背景網路作業相關聯的資源限制。

public:
 static IAsyncOperation<UnconstrainedTransferRequestResult ^> ^ RequestUnconstrainedDownloadsAsync(IIterable<DownloadOperation ^> ^ operations);

/// [Windows.Foundation.Metadata.RemoteAsync]
/// [Windows.Foundation.Metadata.Deprecated("RequestUnconstrainedDownloadsAsync is deprecated and may not work on all platforms. For more info, see MSDN.", Windows.Foundation.Metadata.DeprecationType.Deprecate, 196608, "Windows.Foundation.UniversalApiContract")]
 static IAsyncOperation<UnconstrainedTransferRequestResult> RequestUnconstrainedDownloadsAsync(IIterable<DownloadOperation> const& operations);

[Windows.Foundation.Metadata.RemoteAsync]
[Windows.Foundation.Metadata.Deprecated("RequestUnconstrainedDownloadsAsync is deprecated and may not work on all platforms. For more info, see MSDN.", Windows.Foundation.Metadata.DeprecationType.Deprecate, 196608, "Windows.Foundation.UniversalApiContract")]
public static IAsyncOperation<UnconstrainedTransferRequestResult> RequestUnconstrainedDownloadsAsync(IEnumerable<DownloadOperation> operations);

function requestUnconstrainedDownloadsAsync(operations)

Public Shared Function RequestUnconstrainedDownloadsAsync (operations As IEnumerable(Of DownloadOperation)) As IAsyncOperation(Of UnconstrainedTransferRequestResult)

參數

operations

IIterable<DownloadOperation>

IEnumerable<DownloadOperation>

要執行不受限制的下載作業。

傳回

IAsyncOperation<UnconstrainedTransferRequestResult>

指出作業是否會不受限制地執行。

屬性

RemoteAsyncAttribute DeprecatedAttribute