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CloudPageBlob.BeginUploadFromStream Method (Stream, BlobRequestOptions, AsyncCallback, Object)

Updated: April 24, 2013

[This topic is part of the Microsoft Azure Storage Client Library 1.7, which has been deprecated. See Storage Client Library for the latest version.]

Begins an asynchronous operation to upload a blob from a stream, using a conditional request based on the BlobRequestOptions specified.

Namespace: Microsoft.WindowsAzure.StorageClient
Assembly: Microsoft.WindowsAzure.StorageClient (in Microsoft.WindowsAzure.StorageClient.dll)

Dim instance As CloudPageBlob
Dim source As Stream
Dim options As BlobRequestOptions
Dim callback As AsyncCallback
Dim state As Object
Dim returnValue As IAsyncResult

returnValue = instance.BeginUploadFromStream(source, options, callback, state)

public override IAsyncResult BeginUploadFromStream (
	Stream source,
	BlobRequestOptions options,
	AsyncCallback callback,
	Object state



Type: System.IO.Stream

The data stream to upload.


Type: Microsoft.WindowsAzure.StorageClient.BlobRequestOptions

An object that specifies any additional options for the request.


Type: System.AsyncCallback

The callback delegate that will receive notification when the asynchronous operation completes.


Type: System.Object

A user-defined object that will be passed to the callback delegate.

Return Value

Type: System.IAsyncResult

An IAsyncResult that references the asynchronous operation.

Exception typeCondition

This operation is not supported on objects of type CloudPageBlob.

For optimum performance, the stream should support a length.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Development Platforms

Windows Vista, Windows 7, Windows Server 2008, Windows 8.1, Windows Server 2012 R2, Windows 8 and Windows Server 2012


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