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CloudFile.OpenWrite Method

Definition

Opens 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.File.CloudFileStream OpenWrite (long? size, Microsoft.Azure.Storage.AccessCondition accessCondition = default, Microsoft.Azure.Storage.File.FileRequestOptions options = default, Microsoft.Azure.Storage.OperationContext operationContext = default);
[<Microsoft.Azure.Storage.DoesServiceRequest>]
abstract member OpenWrite : Nullable<int64> * Microsoft.Azure.Storage.AccessCondition * Microsoft.Azure.Storage.File.FileRequestOptions * Microsoft.Azure.Storage.OperationContext -> Microsoft.Azure.Storage.File.CloudFileStream
override this.OpenWrite : Nullable<int64> * Microsoft.Azure.Storage.AccessCondition * Microsoft.Azure.Storage.File.FileRequestOptions * Microsoft.Azure.Storage.OperationContext -> Microsoft.Azure.Storage.File.CloudFileStream
Public Overridable Function OpenWrite (size As Nullable(Of Long), Optional accessCondition As AccessCondition = Nothing, Optional options As FileRequestOptions = Nothing, Optional operationContext As OperationContext = Nothing) As CloudFileStream

Parameters

size
Nullable<Int64>

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.

Returns

A CloudFileStream object to be used for writing to the file.

Attributes

Applies to