Storage Client Library for Windows Phone (Version 7.0)

Initiates an asynchronous operation to check existence of the blob.

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

Syntax

C#

Copy Code

 

[DoesServiceRequestAttribute]
public virtual Task<bool> ExistsAsync(
	BlobRequestOptions options,
	OperationContext operationContext,
	CancellationToken cancellationToken
)

C++

Copy Code

 

public:
[DoesServiceRequestAttribute]
virtual Task<bool>^ ExistsAsync(
	BlobRequestOptions^ options,
	OperationContext^ operationContext,
	CancellationToken cancellationToken
)

F#

Copy Code

 

[<DoesServiceRequestAttribute>]
abstract ExistsAsync : 
        options:BlobRequestOptions *
        operationContext:OperationContext *
        cancellationToken:CancellationToken -> Task<bool>
[<DoesServiceRequestAttribute>]
override ExistsAsync : 
        options:BlobRequestOptions *
        operationContext:OperationContext *
        cancellationToken:CancellationToken -> Task<bool>

VB

Copy Code

 

<DoesServiceRequestAttribute>
Public Overridable Function ExistsAsync (
	options As BlobRequestOptions,
	operationContext As OperationContext,
	cancellationToken As CancellationToken
) As Task(Of Boolean)

Parameters

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.Task<Boolean>System.Threading.Tasks::Task<Boolean>^System.Threading.Tasks.Task<Boolean>System.Threading.Tasks.Task(Of Boolean)

A Task<TResult><TResult><'TResult>(Of TResult) object of type bool that represents the asynchronous operation.

See Also

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

Return to top