ICloudBlob.ExistsAsync Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Overloads
| ExistsAsync(BlobRequestOptions, OperationContext, CancellationToken) |
Initiates an asynchronous operation to check existence of the blob. |
| ExistsAsync(BlobRequestOptions, OperationContext) |
Initiates an asynchronous operation to check existence of the blob. |
| ExistsAsync() |
Initiates an asynchronous operation to check existence of the blob. |
| ExistsAsync(CancellationToken) |
Initiates an asynchronous operation to check existence of the blob. |
ExistsAsync(BlobRequestOptions, OperationContext, CancellationToken)
Initiates an asynchronous operation to check existence of the blob.
public System.Threading.Tasks.Task<bool> ExistsAsync(Microsoft.Azure.Storage.Blob.BlobRequestOptions options, Microsoft.Azure.Storage.OperationContext operationContext, System.Threading.CancellationToken cancellationToken);abstract member ExistsAsync : Microsoft.Azure.Storage.Blob.BlobRequestOptions * Microsoft.Azure.Storage.OperationContext * System.Threading.CancellationToken -> System.Threading.Tasks.Task<bool>Public Function ExistsAsync (options As BlobRequestOptions, operationContext As OperationContext, cancellationToken As CancellationToken) As Task(Of Boolean)Parameters
- options
- BlobRequestOptions
A BlobRequestOptions object that specifies additional options for the request.
- operationContext
- OperationContext
An OperationContext object that represents the context for the current operation.
- cancellationToken
- System.Threading.CancellationToken
A System.Threading.CancellationToken to observe while waiting for a task to complete.
Returns
A System.Threading.Tasks.Task object of type bool that represents the asynchronous operation.
Applies to
ExistsAsync(BlobRequestOptions, OperationContext)
Initiates an asynchronous operation to check existence of the blob.
public System.Threading.Tasks.Task<bool> ExistsAsync(Microsoft.Azure.Storage.Blob.BlobRequestOptions options, Microsoft.Azure.Storage.OperationContext operationContext);abstract member ExistsAsync : Microsoft.Azure.Storage.Blob.BlobRequestOptions * Microsoft.Azure.Storage.OperationContext -> System.Threading.Tasks.Task<bool>Public Function ExistsAsync (options As BlobRequestOptions, operationContext As OperationContext) As Task(Of Boolean)Parameters
- options
- BlobRequestOptions
A BlobRequestOptions object that specifies additional options for the request.
- operationContext
- OperationContext
An OperationContext object that represents the context for the current operation.
Returns
A System.Threading.Tasks.Task object of type bool that represents the asynchronous operation.
Applies to
ExistsAsync()
Initiates an asynchronous operation to check existence of the blob.
public System.Threading.Tasks.Task<bool> ExistsAsync();abstract member ExistsAsync : unit -> System.Threading.Tasks.Task<bool>Public Function ExistsAsync () As Task(Of Boolean)Returns
A System.Threading.Tasks.Task object of type bool that represents the asynchronous operation.
Applies to
ExistsAsync(CancellationToken)
Initiates an asynchronous operation to check existence of the blob.
public System.Threading.Tasks.Task<bool> ExistsAsync(System.Threading.CancellationToken cancellationToken);abstract member ExistsAsync : System.Threading.CancellationToken -> System.Threading.Tasks.Task<bool>Public Function ExistsAsync (cancellationToken As CancellationToken) As Task(Of Boolean)Parameters
- cancellationToken
- System.Threading.CancellationToken
A System.Threading.CancellationToken to observe while waiting for a task to complete.
Returns
A System.Threading.Tasks.Task object of type bool that represents the asynchronous operation.