scrollbar disappears while resizing the window

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Hi
I am working with CWnd derived class, created with WS_VSCROLL.
Correctly updating the scrollbar positions, ranges... using setscrollInfo. But when we are resizing the container window (dialog) suddenly scrollbar disappears for some window sizes. If i increase further or decrease furhter, again the scrollbar appears.
What can be the best method to stick the scrollbar according to the window size.
Please reply me if you need any additional inputs.

Thanks in advance
Best Regards
Raghav

Posted 3-Nov-10 0:39am

Raghava Hosur

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E.F. Nijboer · Answer 1 · 2010-11-03T02:09:00

Solution 1

The scrollbars are normally only shown when needed and hidden otherwise. You can use ShowScrollBar to control this.

http://msdn.microsoft.com/en-us/library/bb787601%28VS.85%29.aspx[^]

Some additional info:
http://msdn.microsoft.com/en-us/library/bb787527%28VS.85%29.aspx#scroll_bar_visibility[^]

Good luck!

Posted 3-Nov-10 2:09am

E.F. Nijboer

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Raghava Hosur 4-Nov-10 6:14am

Hi,
Thank you for the reply. I do understand the scrollbar enable/disable functionality. But my situation is at one particular size of window, the scrollbar is disappearing. But if reduce/increase the window size the scrollbar is coming again. What can be the reason. If the scroll bar disappearing, even if I reduce the window size further also it should remain disappear. But surprisingly it is getting enabled. My implementation is to display the scrollbar always, irrespecitve of the min max sizes. Even if the content is of single page, then also I want to display the scrollbar.
Please address.
Once again Thanks in advance.
Best Regards
Raghav

polczym 5-Feb-11 16:56pm

I too am encountering a similar behaviour when using the .Net Windows Forms Textbox control. I have both scrollbars enabled, and when I perform a resize, the respective scrollbar disappears. I'm sure our problems are related. Hopefully Microsoft will reply with an answer or fix.

polczym 5-Feb-11 16:59pm

Further Google research uncovered the following article:
http://connect.microsoft.com/VisualStudio/feedback/details/304330/scroll-bar-disappears

Member 9241960 · Answer 2 · 2013-01-28T11:02:00

Solution 4

call SetScrollSizes in OnInitialUpdate of the view.

Posted 28-Jan-13 11:02am

Member 9241960

Updated 28-Jan-13 11:03am

v2

sunnytyra · Answer 3 · 2012-01-17T02:24:00

Solution 2

I am facing the same issue on Win XP when we put the Win 98 classic style. Any Suggestion ??

Posted 17-Jan-12 2:24am

sunnytyra

Matthew Rice · Answer 4 · 2013-01-28T10:00:00

Solution 3

This is a .NET bug and has been fixed in .NET 4.5

Posted 28-Jan-13 10:00am

Matthew Rice