TFlushOutput enables forced flushing of the current output buffer
at (a) certain point(s) in the page, after rendering of all previous
controls has been completed.
To use TFlushOutput, simply place it where you want in a template;
the output buffered between the start of the page (or a
previous TFlushOutput) and the TFlushOutput will be sent to the client immediately.
You can specify whether you want to keep buffering of the output
(if it was enabled) till the next occourence of a
or the end of the page rendering, or stop buffering, by using the