validateRequest ="false" for single control or on demand for page?

[Edwin Knoppert]

My usercontrol posts some html code, asp.net complains and therefore i set
validateRequest ="false"

But i would like to set it for the single textbox and not the whole page or
all pages.

If this can not be done, can i set this flag on demand from code (from
inside the usercontrol).
?

Thanks!