Storage Client Library for Windows Phone (Version 7.0)

Initiates an asynchronous operation to upload the contents of a byte array to an append blob. If the blob already exists, it will be overwritten. Recommended only for single-writer scenarios.

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

Syntax

C#

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[DoesServiceRequestAttribute]
public virtual Task UploadFromByteArrayAsync(
	byte[] buffer,
	int index,
	int count,
	AccessCondition accessCondition,
	BlobRequestOptions options,
	OperationContext operationContext,
	CancellationToken cancellationToken
)

C++

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public:
[DoesServiceRequestAttribute]
virtual Task^ UploadFromByteArrayAsync(
	array<unsigned char>^ buffer,
	int index,
	int count,
	AccessCondition^ accessCondition,
	BlobRequestOptions^ options,
	OperationContext^ operationContext,
	CancellationToken cancellationToken
)

F#

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[<DoesServiceRequestAttribute>]
abstract UploadFromByteArrayAsync : 
        buffer:byte[] *
        index:int *
        count:int *
        accessCondition:AccessCondition *
        options:BlobRequestOptions *
        operationContext:OperationContext *
        cancellationToken:CancellationToken -> Task
[<DoesServiceRequestAttribute>]
override UploadFromByteArrayAsync : 
        buffer:byte[] *
        index:int *
        count:int *
        accessCondition:AccessCondition *
        options:BlobRequestOptions *
        operationContext:OperationContext *
        cancellationToken:CancellationToken -> Task

VB

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<DoesServiceRequestAttribute>
Public Overridable Function UploadFromByteArrayAsync (
	buffer As Byte(),
	index As Integer,
	count As Integer,
	accessCondition As AccessCondition,
	options As BlobRequestOptions,
	operationContext As OperationContext,
	cancellationToken As CancellationToken
) As Task

Parameters

buffer

Type: System.Byte[]array<System::Byte>^System.Byte[]System.Byte()

An array of bytes.

index

Type: System.Int32System::Int32System.Int32System.Int32

The zero-based byte offset in buffer at which to begin uploading bytes to the blob.

count

Type: System.Int32System::Int32System.Int32System.Int32

The number of bytes to be written to the blob.

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.

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.

Implements

ICloudBlob.::..UploadFromByteArrayAsync(Byte[], Int32, Int32, AccessCondition, BlobRequestOptions, OperationContext, CancellationToken)(array<Byte>^, Int32, Int32, AccessCondition^, BlobRequestOptions^, OperationContext^, CancellationToken)(Byte[], Int32, Int32, AccessCondition, BlobRequestOptions, OperationContext, CancellationToken)(Byte(), Int32, Int32, AccessCondition, BlobRequestOptions, OperationContext, CancellationToken)

Remarks

Use this method only in single-writer scenarios. Internally, this method uses the append-offset conditional header to avoid duplicate blocks, which may cause problems in multiple-writer scenarios. If you have a single-writer scenario, see AbsorbConditionalErrorsOnRetryAbsorbConditionalErrorsOnRetryAbsorbConditionalErrorsOnRetryAbsorbConditionalErrorsOnRetry to determine whether setting this flag to true is acceptable for your scenario. To append data to an append blob that already exists, see AppendFromByteArrayAsync.

See Also

UploadFromByteArrayAsync Overload
CloudAppendBlob Class
Microsoft.WindowsAzure.Storage.Blob Namespace

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