vcl-dxcloudstorage-dot-tdxcloudstorage-2254d1ae.md
The nested procedural type of the existing file update initiation event.
TFileContentUploadingEvent = procedure(Sender: TObject; const AFile: TdxCloudStorageFile; const ASize: Integer) of object;
| Name | Type | Description |
|---|---|---|
| Sender | TObject |
The cloud storage component that started a file update process.
| | AFile | TdxCloudStorageFile |
The file metadata container that corresponds to the updated file.
| | ASize | Integer |
The updated content size, in bytes.
|
The Sender parameter provides access to the cloud storage component that raised the file update initiation event. To access the cloud storage component’s class members within a TFileContentUploadingEvent event handler, cast the parameter value to the TdxCloudStorage class.
The AFile parameter provides access to the cloud file metadata container that corresponds to the existing file that the content upload routine has started to update on the connected online storage service’s server from a local data stream.
The ASize parameter returns the number of bytes that the content upload routine is supposed to copy from the source data stream to the connected server. You can use this value to estimate the overall content update progress in a TFileContentUploadEvent event handler.
Note
The returned content size (ASize) does not always match the actual size of the source data stream.
See Also