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ICloudBlob.BeginDownloadRangeToStream 方法
定义
重要
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重载
BeginDownloadRangeToStream(Stream, Nullable<Int64>, Nullable<Int64>, AccessCondition, BlobRequestOptions, OperationContext, AsyncCallback, Object)
开始异步操作,将一系列字节从 Blob 下载到流。
public Microsoft.Azure.Storage.ICancellableAsyncResult BeginDownloadRangeToStream (System.IO.Stream target, long? offset, long? length, Microsoft.Azure.Storage.AccessCondition accessCondition, Microsoft.Azure.Storage.Blob.BlobRequestOptions options, Microsoft.Azure.Storage.OperationContext operationContext, AsyncCallback callback, object state);
abstract member BeginDownloadRangeToStream : System.IO.Stream * Nullable<int64> * Nullable<int64> * Microsoft.Azure.Storage.AccessCondition * Microsoft.Azure.Storage.Blob.BlobRequestOptions * Microsoft.Azure.Storage.OperationContext * AsyncCallback * obj -> Microsoft.Azure.Storage.ICancellableAsyncResult
Public Function BeginDownloadRangeToStream (target As Stream, offset As Nullable(Of Long), length As Nullable(Of Long), accessCondition As AccessCondition, options As BlobRequestOptions, operationContext As OperationContext, callback As AsyncCallback, state As Object) As ICancellableAsyncResult
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。
- 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。
- callback
- AsyncCallback
在 AsyncCallback 异步操作完成时接收通知的委托。
- state
- Object
将传递给回调委托的用户定义对象。
返回
引用 ICancellableAsyncResult 异步操作的 。
适用于
BeginDownloadRangeToStream(Stream, Nullable<Int64>, Nullable<Int64>, AsyncCallback, Object)
开始异步操作,将一系列字节从 Blob 下载到流。
public Microsoft.Azure.Storage.ICancellableAsyncResult BeginDownloadRangeToStream (System.IO.Stream target, long? offset, long? length, AsyncCallback callback, object state);
abstract member BeginDownloadRangeToStream : System.IO.Stream * Nullable<int64> * Nullable<int64> * AsyncCallback * obj -> Microsoft.Azure.Storage.ICancellableAsyncResult
Public Function BeginDownloadRangeToStream (target As Stream, offset As Nullable(Of Long), length As Nullable(Of Long), callback As AsyncCallback, state As Object) As ICancellableAsyncResult
参数
- callback
- AsyncCallback
在 AsyncCallback 异步操作完成时接收通知的委托。
- state
- Object
将传递给回调委托的用户定义对象。
返回
引用 ICancellableAsyncResult 异步操作的 。