CloudBlob.EndDownloadToStream Method

Storage Client Library NET API

[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.]

Ends an asynchronous operation to download the contents of a blob to a stream.

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

Usage

Visual Basic
Dim instance As CloudBlob
Dim asyncResult As IAsyncResult

instance.EndDownloadToStream(asyncResult)

Syntax

Visual Basic
Public Sub EndDownloadToStream ( _
	asyncResult As IAsyncResult _
)
C#
public void EndDownloadToStream (
	IAsyncResult asyncResult
)
C++
public:
void EndDownloadToStream (
	IAsyncResult^ asyncResult
)
J#
JScript

Parameters

asyncResult

Type: System.IAsyncResult

An IAsyncResult that references the pending asynchronous operation.

Example

The following code example downloads a text blob to a file stream in order to append it to a text file.

C# Copy Code
static void DownloadBlobToStreamAsync(Uri blobEndpoint, string accountName, string accountKey)
{
    // Create service client for credentialed access to the Blob service.
    CloudBlobClient blobClient = 
        new CloudBlobClient(blobEndpoint, new StorageCredentialsAccountAndKey(accountName, accountKey));

    // Get a reference to a blob.
    CloudBlob blob = blobClient.GetBlobReference("mycontainer/myblob.txt");
            
    // Download the blob to a file stream.
    FileStream stream = new FileStream("C:\\appendtofile.txt", FileMode.Append);
    blob.BeginDownloadToStream(stream, DownloadBlobToStreamCallback, blob);
}

static void DownloadBlobToStreamCallback(IAsyncResult result)
{
    CloudBlob blob = (CloudBlob)result.AsyncState;

    // End the operation.
    blob.EndDownloadToStream(result);
}

Thread Safety

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

Platforms

Development Platforms

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

Change History

See Also