How to get AutoScroll scrollbar thickness?

Question

I'm working on a program feature in which a FlowLayoutPanel (whose flow direction is set to TopDown) should adjust its width based on whether or not the vertical scrollbar is visible on the screen. I have figured out how to detect if the scrollbar is visible.

My problem is that I can't seem to figure out how to find the width of the (pre-programmed) vertical scrollbar. The reason that I want to expand the panel's width when it overflows is because the scrollbar overlaps the controls in the panel.

If possible, I'd like to avoid changing the margin/padding of the controls, and I would like to avoid using constants that I declare myself in my code.

I'd also like to avoid adding a VerticalScrollBar component, unless there is an easy way to programmatically scroll through the overflown panel based on the scrollbar's thumb position.

Does anyone have any ideas? Thanks!

Are you talking about Winforms? – S.Spieker May 03 '15 at 07:38 — S.Spieker, May 03 '15 at 07:38
WPF or windows forms ? Both have a flowlayoutpanel. – Philip Stuyck May 03 '15 at 07:39 — Philip Stuyck, May 03 '15 at 07:39

score 2 · Accepted Answer · edited May 23 '17 at 10:27

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This is different depending on windows forms and WPF.

For Forms see : How do I know the current width of system scrollbar?

System.Windows.Forms.SystemInformation class members: HorizontalScrollBarHeight and VerticalScrollBarWidth.

For WPF see : How to find Vertical Scrollbar width of a Scrollviewer in C#

SystemParameters.VerticalScrollBarWidth

edited May 23 '17 at 10:27

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answered May 03 '15 at 07:44

Philip Stuyck

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Thank you Philip! The links you posted were very helpful. – Jeff May 03 '15 at 14:14

How to get AutoScroll scrollbar thickness?

1 Answers1