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views:

24

answers:

1
Q: 

.NET Vertical Scrollbar not Respecting Maximum Property

I have a form and have dropped a vertical scrollbar on it.

Whatever I set the "Maximum" property to, the scrollbar will only scroll up to that value minus 9.

Why is that?

I'm using C# in Visual Studio 2008. (WinForms)

+1  A: 

After some research, I've found that a scroll bar can only go up to it's maximum minus the size of the scrollbar's slider.

And the size of the slider appears to be equal to (LargeChange - 1).

Doesn't seem very intuitive to me but there you go.

Kevin Laity  2010-05-21 14:21:12
You got it right; I was about to say the same thing. The worst thing is that this strange design is completely undocumented.
Thomas  2010-05-21 14:22:49
Good point on the documentation. And the -1 is a magic number as far as I'm concerned. Very sloppy on Microsoft's part for such a common control!
Kevin Laity  2010-05-21 16:00:09

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