C#
C++
F#
VB
CloudAppendBlob.::..AppendFromFileAsync Method (String, CancellationToken)(String^, CancellationToken)(String, CancellationToken)(String, CancellationToken)
Initiates an asynchronous operation to append a file to an append blob. Recommended only for single-writer scenarios.
Assembly: Microsoft.WindowsAzure.Storage (in Microsoft.WindowsAzure.Storage.dll)
Syntax
[DoesServiceRequestAttribute] public virtual Task AppendFromFileAsync( string path, CancellationToken cancellationToken )
C++
public: [DoesServiceRequestAttribute] virtual Task^ AppendFromFileAsync( String^ path, CancellationToken cancellationToken )
[<DoesServiceRequestAttribute>] abstract AppendFromFileAsync : path:string * cancellationToken:CancellationToken -> Task [<DoesServiceRequestAttribute>] override AppendFromFileAsync : path:string * cancellationToken:CancellationToken -> Task
<DoesServiceRequestAttribute> Public Overridable Function AppendFromFileAsync ( path As String, cancellationToken As CancellationToken ) As Task
Parameters
- path
-
Type:
System.StringSystem::String^System.StringSystem.String
A string containing the file path providing the blob content.
- cancellationToken
-
Type:
System.Threading.CancellationTokenSystem.Threading::CancellationTokenSystem.Threading.CancellationTokenSystem.Threading.CancellationToken
A CancellationToken to observe while waiting for a task to complete.
Return Value
Type: System.Threading.Tasks.TaskSystem.Threading.Tasks::Task^System.Threading.Tasks.TaskSystem.Threading.Tasks.TaskA Task object that represents the asynchronous operation.
Remarks
Use this method only in single-writer scenarios. Internally, this method uses the append-offset conditional header to avoid duplicate blocks, which may cause problems in multiple-writer scenarios.
See Also
AppendFromFileAsync Overload
CloudAppendBlob Class
Microsoft.WindowsAzure.Storage.Blob Namespace