CloudFile.BeginExists Method
Definition
Important
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Overloads
| BeginExists(FileRequestOptions, OperationContext, AsyncCallback, Object) |
Begins an asynchronous request to check existence of the file. |
| BeginExists(AsyncCallback, Object) |
Begins an asynchronous request to check existence of the file. |
BeginExists(FileRequestOptions, OperationContext, AsyncCallback, Object)
Begins an asynchronous request to check existence of the file.
[Microsoft.Azure.Storage.DoesServiceRequest]
public virtual Microsoft.Azure.Storage.ICancellableAsyncResult BeginExists (Microsoft.Azure.Storage.File.FileRequestOptions options, Microsoft.Azure.Storage.OperationContext operationContext, AsyncCallback callback, object state);[<Microsoft.Azure.Storage.DoesServiceRequest>]
abstract member BeginExists : Microsoft.Azure.Storage.File.FileRequestOptions * Microsoft.Azure.Storage.OperationContext * AsyncCallback * obj -> Microsoft.Azure.Storage.ICancellableAsyncResult
override this.BeginExists : Microsoft.Azure.Storage.File.FileRequestOptions * Microsoft.Azure.Storage.OperationContext * AsyncCallback * obj -> Microsoft.Azure.Storage.ICancellableAsyncResultPublic Overridable Function BeginExists (options As FileRequestOptions, operationContext As OperationContext, callback As AsyncCallback, state As Object) As ICancellableAsyncResultParameters
- options
- FileRequestOptions
A FileRequestOptions object that specifies additional options for the request.
- operationContext
- OperationContext
An OperationContext object that represents the context for the current operation.
- callback
- AsyncCallback
The callback delegate that will receive notification when the asynchronous operation completes.
- state
- Object
A user-defined object that will be passed to the callback delegate.
Returns
An ICancellableAsyncResult that references the asynchronous operation.
- Attributes
Applies to
BeginExists(AsyncCallback, Object)
Begins an asynchronous request to check existence of the file.
[Microsoft.Azure.Storage.DoesServiceRequest]
public virtual Microsoft.Azure.Storage.ICancellableAsyncResult BeginExists (AsyncCallback callback, object state);[<Microsoft.Azure.Storage.DoesServiceRequest>]
abstract member BeginExists : AsyncCallback * obj -> Microsoft.Azure.Storage.ICancellableAsyncResult
override this.BeginExists : AsyncCallback * obj -> Microsoft.Azure.Storage.ICancellableAsyncResultPublic Overridable Function BeginExists (callback As AsyncCallback, state As Object) As ICancellableAsyncResultParameters
- callback
- AsyncCallback
The callback delegate that will receive notification when the asynchronous operation completes.
- state
- Object
A user-defined object that will be passed to the callback delegate.
Returns
An ICancellableAsyncResult that references the asynchronous operation.
- Attributes
