Method XbpScrollBar():setData() Foundation
Sets the current position of the scroll box.
:setData( [<nScrlPos>] ) --> lSuccess
This method returns the value .T. (true) when the position could be set, otherwise .F. (false) is returned.
The :setData() method sets the position of the scroll box within the scroll bar. If a code block is contained in the instance variable :dataLink, it is executed without parameters and the return value of the code block determines the position of the scroll box. The code block in :dataLink is not executed if a value is explicitly specified for the <nScrlPos> parameter when the method :setData() is called.
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