DynamicDataNeeded Event
Requests a portion of data to be uploaded from the application.
Syntax
type TDynamicDataNeededEvent = procedure ( Sender: TObject; BytesNeeded: Integer ) of Object;
property OnDynamicDataNeeded: TDynamicDataNeededEvent read FOnDynamicDataNeeded write FOnDynamicDataNeeded;
Remarks
If dynamic ('streaming') variants of PUT or POST methods are used, this event is fired periodically to request portions of data to be sent to the server.
When handling this event, assign the next portion of data of BytesNeeded length (or less) to DynamicData. If no more data is available to upload (the whole document has been sent), leave DynamicData empty.