CloudFile.BeginOpenWrite Method
Definition
Important
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Overloads
| BeginOpenWrite(Nullable<Int64>, AccessCondition, FileRequestOptions, OperationContext, AsyncCallback, Object) |
Begins an asynchronous operation to open a stream for writing to the file. If the file already exists, then existing data in the file may be overwritten. |
| BeginOpenWrite(Nullable<Int64>, AsyncCallback, Object) |
Begins an asynchronous operation to open a stream for writing to the file. If the file already exists, then existing data in the file may be overwritten. |
BeginOpenWrite(Nullable<Int64>, AccessCondition, FileRequestOptions, OperationContext, AsyncCallback, Object)
Begins an asynchronous operation to open a stream for writing to the file. If the file already exists, then existing data in the file may be overwritten.
[Microsoft.Azure.Storage.DoesServiceRequest]
public virtual Microsoft.Azure.Storage.ICancellableAsyncResult BeginOpenWrite (long? size, Microsoft.Azure.Storage.AccessCondition accessCondition, Microsoft.Azure.Storage.File.FileRequestOptions options, Microsoft.Azure.Storage.OperationContext operationContext, AsyncCallback callback, object state);[<Microsoft.Azure.Storage.DoesServiceRequest>]
abstract member BeginOpenWrite : Nullable<int64> * Microsoft.Azure.Storage.AccessCondition * Microsoft.Azure.Storage.File.FileRequestOptions * Microsoft.Azure.Storage.OperationContext * AsyncCallback * obj -> Microsoft.Azure.Storage.ICancellableAsyncResult
override this.BeginOpenWrite : Nullable<int64> * Microsoft.Azure.Storage.AccessCondition * Microsoft.Azure.Storage.File.FileRequestOptions * Microsoft.Azure.Storage.OperationContext * AsyncCallback * obj -> Microsoft.Azure.Storage.ICancellableAsyncResultPublic Overridable Function BeginOpenWrite (size As Nullable(Of Long), accessCondition As AccessCondition, options As FileRequestOptions, operationContext As OperationContext, callback As AsyncCallback, state As Object) As ICancellableAsyncResultParameters
The size of the file to create, in bytes, or null. If null, the file must already exist. If not null, a new file of the given size will be created. If size is not null but the file already exists on the service, the already-existing file will be deleted.
- accessCondition
- AccessCondition
An AccessCondition object that represents the access conditions for the file. If null, no condition is used.
- 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
BeginOpenWrite(Nullable<Int64>, AsyncCallback, Object)
Begins an asynchronous operation to open a stream for writing to the file. If the file already exists, then existing data in the file may be overwritten.
[Microsoft.Azure.Storage.DoesServiceRequest]
public virtual Microsoft.Azure.Storage.ICancellableAsyncResult BeginOpenWrite (long? size, AsyncCallback callback, object state);[<Microsoft.Azure.Storage.DoesServiceRequest>]
abstract member BeginOpenWrite : Nullable<int64> * AsyncCallback * obj -> Microsoft.Azure.Storage.ICancellableAsyncResult
override this.BeginOpenWrite : Nullable<int64> * AsyncCallback * obj -> Microsoft.Azure.Storage.ICancellableAsyncResultPublic Overridable Function BeginOpenWrite (size As Nullable(Of Long), callback As AsyncCallback, state As Object) As ICancellableAsyncResultParameters
The size of the file to create, in bytes, or null. If null, the file must already exist. If not null, a new file of the given size will be created. If size is not null but the file already exists on the service, the already-existing file will be deleted.
- 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
