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CloudBlob.DownloadRangeToStreamAsync 方法
定义
重要
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重载
DownloadRangeToStreamAsync(Stream, Nullable<Int64>, Nullable<Int64>, AccessCondition, BlobRequestOptions, OperationContext, CancellationToken)
启动异步操作,将一系列字节从 Blob 下载到流。
[Microsoft.Azure.Storage.DoesServiceRequest]
public virtual System.Threading.Tasks.Task DownloadRangeToStreamAsync (System.IO.Stream target, long? offset, long? length, Microsoft.Azure.Storage.AccessCondition accessCondition, Microsoft.Azure.Storage.Blob.BlobRequestOptions options, Microsoft.Azure.Storage.OperationContext operationContext, System.Threading.CancellationToken cancellationToken);
[<Microsoft.Azure.Storage.DoesServiceRequest>]
abstract member DownloadRangeToStreamAsync : System.IO.Stream * Nullable<int64> * Nullable<int64> * Microsoft.Azure.Storage.AccessCondition * Microsoft.Azure.Storage.Blob.BlobRequestOptions * Microsoft.Azure.Storage.OperationContext * System.Threading.CancellationToken -> System.Threading.Tasks.Task
override this.DownloadRangeToStreamAsync : System.IO.Stream * Nullable<int64> * Nullable<int64> * Microsoft.Azure.Storage.AccessCondition * Microsoft.Azure.Storage.Blob.BlobRequestOptions * Microsoft.Azure.Storage.OperationContext * System.Threading.CancellationToken -> System.Threading.Tasks.Task
Public Overridable Function DownloadRangeToStreamAsync (target As Stream, offset As Nullable(Of Long), length As Nullable(Of Long), accessCondition As AccessCondition, options As BlobRequestOptions, operationContext As OperationContext, cancellationToken As CancellationToken) As Task
参数
- accessCondition
- AccessCondition
一个 AccessCondition 对象,表示继续处理请求而必须满足的条件。 如果为 null
,则不使用任何条件。
- options
- BlobRequestOptions
一个 BlobRequestOptions 对象,它指定请求的其他选项。
- operationContext
- OperationContext
一个 OperationContext 对象,它一个表示当前操作的上下文。
- cancellationToken
- CancellationToken
等待任务完成期间要观察的 CancellationToken。
返回
表示异步操作的 Task 对象。
- 属性
适用于
DownloadRangeToStreamAsync(Stream, Nullable<Int64>, Nullable<Int64>, AccessCondition, BlobRequestOptions, OperationContext)
启动异步操作,将一系列字节从 Blob 下载到流。
[Microsoft.Azure.Storage.DoesServiceRequest]
public virtual System.Threading.Tasks.Task DownloadRangeToStreamAsync (System.IO.Stream target, long? offset, long? length, Microsoft.Azure.Storage.AccessCondition accessCondition, Microsoft.Azure.Storage.Blob.BlobRequestOptions options, Microsoft.Azure.Storage.OperationContext operationContext);
[<Microsoft.Azure.Storage.DoesServiceRequest>]
abstract member DownloadRangeToStreamAsync : System.IO.Stream * Nullable<int64> * Nullable<int64> * Microsoft.Azure.Storage.AccessCondition * Microsoft.Azure.Storage.Blob.BlobRequestOptions * Microsoft.Azure.Storage.OperationContext -> System.Threading.Tasks.Task
override this.DownloadRangeToStreamAsync : System.IO.Stream * Nullable<int64> * Nullable<int64> * Microsoft.Azure.Storage.AccessCondition * Microsoft.Azure.Storage.Blob.BlobRequestOptions * Microsoft.Azure.Storage.OperationContext -> System.Threading.Tasks.Task
Public Overridable Function DownloadRangeToStreamAsync (target As Stream, offset As Nullable(Of Long), length As Nullable(Of Long), accessCondition As AccessCondition, options As BlobRequestOptions, operationContext As OperationContext) As Task
参数
- accessCondition
- AccessCondition
一个 AccessCondition 对象,表示继续处理请求而必须满足的条件。 如果为 null
,则不使用任何条件。
- options
- BlobRequestOptions
一个 BlobRequestOptions 对象,它指定请求的其他选项。
- operationContext
- OperationContext
一个 OperationContext 对象,它一个表示当前操作的上下文。
返回
表示异步操作的 Task 对象。
- 属性
适用于
DownloadRangeToStreamAsync(Stream, Nullable<Int64>, Nullable<Int64>, AccessCondition, BlobRequestOptions, OperationContext, IProgress<StorageProgress>, CancellationToken)
启动异步操作,将一系列字节从 Blob 下载到流。
[Microsoft.Azure.Storage.DoesServiceRequest]
public virtual System.Threading.Tasks.Task DownloadRangeToStreamAsync (System.IO.Stream target, long? offset, long? length, Microsoft.Azure.Storage.AccessCondition accessCondition, Microsoft.Azure.Storage.Blob.BlobRequestOptions options, Microsoft.Azure.Storage.OperationContext operationContext, IProgress<Microsoft.Azure.Storage.Core.Util.StorageProgress> progressHandler, System.Threading.CancellationToken cancellationToken);
[<Microsoft.Azure.Storage.DoesServiceRequest>]
abstract member DownloadRangeToStreamAsync : System.IO.Stream * Nullable<int64> * Nullable<int64> * Microsoft.Azure.Storage.AccessCondition * Microsoft.Azure.Storage.Blob.BlobRequestOptions * Microsoft.Azure.Storage.OperationContext * IProgress<Microsoft.Azure.Storage.Core.Util.StorageProgress> * System.Threading.CancellationToken -> System.Threading.Tasks.Task
override this.DownloadRangeToStreamAsync : System.IO.Stream * Nullable<int64> * Nullable<int64> * Microsoft.Azure.Storage.AccessCondition * Microsoft.Azure.Storage.Blob.BlobRequestOptions * Microsoft.Azure.Storage.OperationContext * IProgress<Microsoft.Azure.Storage.Core.Util.StorageProgress> * System.Threading.CancellationToken -> System.Threading.Tasks.Task
Public Overridable Function DownloadRangeToStreamAsync (target As Stream, offset As Nullable(Of Long), length As Nullable(Of Long), accessCondition As AccessCondition, options As BlobRequestOptions, operationContext As OperationContext, progressHandler As IProgress(Of StorageProgress), cancellationToken As CancellationToken) As Task
参数
- accessCondition
- AccessCondition
一个 AccessCondition 对象,表示继续处理请求而必须满足的条件。 如果为 null
,则不使用任何条件。
- options
- BlobRequestOptions
一个 BlobRequestOptions 对象,它指定请求的其他选项。
- operationContext
- OperationContext
一个 OperationContext 对象,它一个表示当前操作的上下文。
- progressHandler
- IProgress<StorageProgress>
用于 IProgress<T> 处理 StorageProgress 消息的 对象。
- cancellationToken
- CancellationToken
等待任务完成期间要观察的 CancellationToken。
返回
表示异步操作的 Task 对象。
- 属性
适用于
DownloadRangeToStreamAsync(Stream, Nullable<Int64>, Nullable<Int64>)
启动异步操作,将一系列字节从 Blob 下载到流。
[Microsoft.Azure.Storage.DoesServiceRequest]
public virtual System.Threading.Tasks.Task DownloadRangeToStreamAsync (System.IO.Stream target, long? offset, long? length);
[<Microsoft.Azure.Storage.DoesServiceRequest>]
abstract member DownloadRangeToStreamAsync : System.IO.Stream * Nullable<int64> * Nullable<int64> -> System.Threading.Tasks.Task
override this.DownloadRangeToStreamAsync : System.IO.Stream * Nullable<int64> * Nullable<int64> -> System.Threading.Tasks.Task
Public Overridable Function DownloadRangeToStreamAsync (target As Stream, offset As Nullable(Of Long), length As Nullable(Of Long)) As Task
参数
返回
表示异步操作的 Task 对象。
- 属性
适用于
DownloadRangeToStreamAsync(Stream, Nullable<Int64>, Nullable<Int64>, CancellationToken)
启动异步操作,将一系列字节从 Blob 下载到流。
[Microsoft.Azure.Storage.DoesServiceRequest]
public virtual System.Threading.Tasks.Task DownloadRangeToStreamAsync (System.IO.Stream target, long? offset, long? length, System.Threading.CancellationToken cancellationToken);
[<Microsoft.Azure.Storage.DoesServiceRequest>]
abstract member DownloadRangeToStreamAsync : System.IO.Stream * Nullable<int64> * Nullable<int64> * System.Threading.CancellationToken -> System.Threading.Tasks.Task
override this.DownloadRangeToStreamAsync : System.IO.Stream * Nullable<int64> * Nullable<int64> * System.Threading.CancellationToken -> System.Threading.Tasks.Task
Public Overridable Function DownloadRangeToStreamAsync (target As Stream, offset As Nullable(Of Long), length As Nullable(Of Long), cancellationToken As CancellationToken) As Task
参数
- cancellationToken
- CancellationToken
等待任务完成期间要观察的 CancellationToken。
返回
表示异步操作的 Task 对象。
- 属性