Instruct the layout to flush any cached values associated with the control specified in the argument <code>control</code>.
@param control a control managed by this layout @return true if the Layout has flushed all cached information associated with control
@since 3.1
See Implementation
Instruct the layout to flush any cached values associated with the control specified in the argument <code>control</code>.
@param control a control managed by this layout @return true if the Layout has flushed all cached information associated with control
@since 3.1