IFileSystemProvider.WriteFileAsync Method
Definition
Important
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Writes data to a file, replacing its entire contents if the file already exists.
public:
System::Threading::Tasks::Task ^ WriteFileAsync(Uri ^ uri, System::IO::Pipelines::PipeReader ^ reader, bool overwrite, System::Threading::CancellationToken cancellationToken);public System.Threading.Tasks.Task WriteFileAsync (Uri uri, System.IO.Pipelines.PipeReader reader, bool overwrite, System.Threading.CancellationToken cancellationToken);abstract member WriteFileAsync : Uri * System.IO.Pipelines.PipeReader * bool * System.Threading.CancellationToken -> System.Threading.Tasks.TaskPublic Function WriteFileAsync (uri As Uri, reader As PipeReader, overwrite As Boolean, cancellationToken As CancellationToken) As TaskParameters
- uri
- Uri
The file to write.
- reader
- PipeReader
The reader for the pipe containing the data to be written to the file.
- overwrite
- Boolean
Indicates whether an existing file can be overwritten.
- cancellationToken
- CancellationToken
The cancellation token.
Returns
A task representing the asynchronous write operation.
Exceptions
uri or reader is null.
The parent of uri doesn't exist.
uri exists and overwrite is false.
ErrorCode will be set to
FileAlreadyExists.
The caller does not have the required permission.