Storage Client Library for Windows Phone (Version 7.0)

Microsoft Windows Azure Storage Blob

CloudQueue.ExistsAsync Method (QueueRequestOptions, OperationContext, CancellationToken) (Microsoft.WindowsAzure.Storage.Queue)

Initiates an asynchronous operation to check the existence of the queue.

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

Syntax

C#
System_CAPS_copycodeCopy Code
  
[DoesServiceRequestAttribute]
public virtual Task<bool> ExistsAsync(
	QueueRequestOptions options,
	OperationContext operationContext,
	CancellationToken cancellationToken
)
C++
System_CAPS_copycodeCopy Code
  
public:
[DoesServiceRequestAttribute]
virtual Task<bool>^ ExistsAsync(
	QueueRequestOptions^ options,
	OperationContext^ operationContext,
	CancellationToken cancellationToken
)
F#
System_CAPS_copycodeCopy Code
  
[<DoesServiceRequestAttribute>]
abstract ExistsAsync : 
        options:QueueRequestOptions *
        operationContext:OperationContext *
        cancellationToken:CancellationToken -> Task<bool>
[<DoesServiceRequestAttribute>]
override ExistsAsync : 
        options:QueueRequestOptions *
        operationContext:OperationContext *
        cancellationToken:CancellationToken -> Task<bool>
VB
System_CAPS_copycodeCopy Code
  
<DoesServiceRequestAttribute>
Public Overridable Function ExistsAsync (
	options As QueueRequestOptions,
	operationContext As OperationContext,
	cancellationToken As CancellationToken
) As Task(Of Boolean)

Parameters

options
Type: Microsoft.WindowsAzure.Storage.Queue.QueueRequestOptionsMicrosoft.WindowsAzure.Storage.Queue::QueueRequestOptions^Microsoft.WindowsAzure.Storage.Queue.QueueRequestOptionsMicrosoft.WindowsAzure.Storage.Queue.QueueRequestOptions

A QueueRequestOptions 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
CloudQueue Class
Microsoft.WindowsAzure.Storage.Queue Namespace

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