CloudBlob.ExistsAsync CloudBlob.ExistsAsync CloudBlob.ExistsAsync Method

Definition

Namespace:
Microsoft.WindowsAzure.Storage.Blob Microsoft.WindowsAzure.Storage.Blob Microsoft.WindowsAzure.Storage.Blob
Assembly:
Microsoft.WindowsAzure.Storage.dll

Overloads

ExistsAsync() ExistsAsync() ExistsAsync()

Initiates an asynchronous operation to check existence of the blob.
ExistsAsync(CancellationToken) ExistsAsync(CancellationToken)

Initiates an asynchronous operation to check existence of the blob.
ExistsAsync(BlobRequestOptions, OperationContext) ExistsAsync(BlobRequestOptions, OperationContext)

Initiates an asynchronous operation to check existence of the blob.
ExistsAsync(BlobRequestOptions, OperationContext, CancellationToken) ExistsAsync(BlobRequestOptions, OperationContext, CancellationToken)

Initiates an asynchronous operation to check existence of the blob.

ExistsAsync() ExistsAsync() ExistsAsync()

Initiates an asynchronous operation to check existence of the blob.

[Microsoft.WindowsAzure.Storage.DoesServiceRequest]
public virtual System.Threading.Tasks.Task<bool> ExistsAsync ();
abstract member ExistsAsync : unit -> System.Threading.Tasks.Task<bool>
override this.ExistsAsync : unit -> System.Threading.Tasks.Task<bool>
Public Overridable Function ExistsAsync () As Task(Of Boolean)
Returns
Task<Boolean>

A Task<TResult> object of type bool that represents the asynchronous operation.

ExistsAsync(CancellationToken) ExistsAsync(CancellationToken)

Initiates an asynchronous operation to check existence of the blob.

[Microsoft.WindowsAzure.Storage.DoesServiceRequest]
public virtual System.Threading.Tasks.Task<bool> ExistsAsync (System.Threading.CancellationToken cancellationToken);
abstract member ExistsAsync : System.Threading.CancellationToken -> System.Threading.Tasks.Task<bool>
override this.ExistsAsync : System.Threading.CancellationToken -> System.Threading.Tasks.Task<bool>
Parameters
cancellationToken
CancellationToken CancellationToken CancellationToken

A CancellationToken to observe while waiting for a task to complete.

Returns
Task<Boolean>

A Task<TResult> object of type bool that represents the asynchronous operation.

ExistsAsync(BlobRequestOptions, OperationContext) ExistsAsync(BlobRequestOptions, OperationContext)

Initiates an asynchronous operation to check existence of the blob.

[Microsoft.WindowsAzure.Storage.DoesServiceRequest]
public virtual System.Threading.Tasks.Task<bool> ExistsAsync (Microsoft.WindowsAzure.Storage.Blob.BlobRequestOptions options, Microsoft.WindowsAzure.Storage.OperationContext operationContext);
abstract member ExistsAsync : Microsoft.WindowsAzure.Storage.Blob.BlobRequestOptions * Microsoft.WindowsAzure.Storage.OperationContext -> System.Threading.Tasks.Task<bool>
override this.ExistsAsync : Microsoft.WindowsAzure.Storage.Blob.BlobRequestOptions * Microsoft.WindowsAzure.Storage.OperationContext -> System.Threading.Tasks.Task<bool>
Parameters
options
BlobRequestOptions BlobRequestOptions BlobRequestOptions

A BlobRequestOptions object that specifies additional options for the request.

operationContext
OperationContext OperationContext OperationContext

An OperationContext object that represents the context for the current operation.

Returns
Task<Boolean>

A Task<TResult> object of type bool that represents the asynchronous operation.

ExistsAsync(BlobRequestOptions, OperationContext, CancellationToken) ExistsAsync(BlobRequestOptions, OperationContext, CancellationToken)

Initiates an asynchronous operation to check existence of the blob.

[Microsoft.WindowsAzure.Storage.DoesServiceRequest]
public virtual System.Threading.Tasks.Task<bool> ExistsAsync (Microsoft.WindowsAzure.Storage.Blob.BlobRequestOptions options, Microsoft.WindowsAzure.Storage.OperationContext operationContext, System.Threading.CancellationToken cancellationToken);
abstract member ExistsAsync : Microsoft.WindowsAzure.Storage.Blob.BlobRequestOptions * Microsoft.WindowsAzure.Storage.OperationContext * System.Threading.CancellationToken -> System.Threading.Tasks.Task<bool>
override this.ExistsAsync : Microsoft.WindowsAzure.Storage.Blob.BlobRequestOptions * Microsoft.WindowsAzure.Storage.OperationContext * System.Threading.CancellationToken -> System.Threading.Tasks.Task<bool>
Parameters
options
BlobRequestOptions BlobRequestOptions BlobRequestOptions

A BlobRequestOptions object that specifies additional options for the request.

operationContext
OperationContext OperationContext OperationContext

An OperationContext object that represents the context for the current operation.

cancellationToken
CancellationToken CancellationToken CancellationToken

A CancellationToken to observe while waiting for a task to complete.

Returns
Task<Boolean>

A Task<TResult> object of type bool that represents the asynchronous operation.

Applies to