CloudBlob.DownloadRangeToStreamAsync Method (Stream, Nullable(Int64), Nullable(Int64), AccessCondition, BlobRequestOptions, OperationContext, CancellationToken) (Microsoft.WindowsAzure.Storage.Blob)

Initiates an asynchronous operation to download a range of bytes from a blob to a stream.

Namespace:   Microsoft.WindowsAzure.Storage.Blob
Assembly:  Microsoft.WindowsAzure.Storage (in Microsoft.WindowsAzure.Storage.dll)

Syntax

C#

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[DoesServiceRequestAttribute]
public virtual Task DownloadRangeToStreamAsync(
	Stream target,
	Nullable<long> offset,
	Nullable<long> length,
	AccessCondition accessCondition,
	BlobRequestOptions options,
	OperationContext operationContext,
	CancellationToken cancellationToken
)

C++

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public:
[DoesServiceRequestAttribute]
virtual Task^ DownloadRangeToStreamAsync(
	Stream^ target,
	Nullable<long long> offset,
	Nullable<long long> length,
	AccessCondition^ accessCondition,
	BlobRequestOptions^ options,
	OperationContext^ operationContext,
	CancellationToken cancellationToken
)

F#

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[<DoesServiceRequestAttribute>]
abstract DownloadRangeToStreamAsync : 
        target:Stream *
        offset:Nullable<int64> *
        length:Nullable<int64> *
        accessCondition:AccessCondition *
        options:BlobRequestOptions *
        operationContext:OperationContext *
        cancellationToken:CancellationToken -> Task
[<DoesServiceRequestAttribute>]
override DownloadRangeToStreamAsync : 
        target:Stream *
        offset:Nullable<int64> *
        length:Nullable<int64> *
        accessCondition:AccessCondition *
        options:BlobRequestOptions *
        operationContext:OperationContext *
        cancellationToken:CancellationToken -> Task

VB

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<DoesServiceRequestAttribute>
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

Parameters

target

Type: System.IO.StreamSystem.IO::Stream^System.IO.StreamSystem.IO.Stream

A Stream object representing the target stream.

offset

Type: System.Nullable<Int64>System::Nullable<Int64>System.Nullable<Int64>System.Nullable(Of Int64)

The offset at which to begin downloading the blob, in bytes.

length

Type: System.Nullable<Int64>System::Nullable<Int64>System.Nullable<Int64>System.Nullable(Of Int64)

The length of the data to download from the blob, in bytes.

accessCondition

Type: Microsoft.WindowsAzure.Storage.AccessConditionMicrosoft.WindowsAzure.Storage::AccessCondition^Microsoft.WindowsAzure.Storage.AccessConditionMicrosoft.WindowsAzure.Storage.AccessCondition

An AccessCondition object that represents the condition that must be met in order for the request to proceed. If null, no condition is used.

options

Type: Microsoft.WindowsAzure.Storage.Blob.BlobRequestOptionsMicrosoft.WindowsAzure.Storage.Blob::BlobRequestOptions^Microsoft.WindowsAzure.Storage.Blob.BlobRequestOptionsMicrosoft.WindowsAzure.Storage.Blob.BlobRequestOptions

A BlobRequestOptions object that specifies additional options for the request.

operationContext

Type: Microsoft.WindowsAzure.Storage.OperationContextMicrosoft.WindowsAzure.Storage::OperationContext^Microsoft.WindowsAzure.Storage.OperationContextMicrosoft.WindowsAzure.Storage.OperationContext

An OperationContext object that represents the context for the current operation.

cancellationToken

Type: System.Threading.CancellationTokenSystem.Threading::CancellationTokenSystem.Threading.CancellationTokenSystem.Threading.CancellationToken

A CancellationToken to observe while waiting for a task to complete.

Return Value

Type: System.Threading.Tasks.TaskSystem.Threading.Tasks::Task^System.Threading.Tasks.TaskSystem.Threading.Tasks.Task

A Task object that represents the asynchronous operation.

See Also

DownloadRangeToStreamAsync Overload
CloudBlob Class
Microsoft.WindowsAzure.Storage.Blob Namespace

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