It might be invalid value. You need to check up your control client size, versus
System.Windows.Forms.ScrollableControl.AutoScrollMinSize
. Also, make sure your
System.Windows.Forms.ScrollableControl.AutoScroll
is true and take into account
System.Windows.Forms.ScrollableControl.AutoScrollMargin
with
System.Windows.Forms.ScrollableControl.AutoScrollOffset
. It's possible that you simply did not understand the concept, as happens with some members in the past.
This is the article with minimalistic and clear explanation of matter:
http://www.bobpowell.net/understanding_autoscroll.htm[
^].
See also:
http://msdn.microsoft.com/en-us/library/system.windows.forms.scrollablecontrol.aspx[
^].
—SA