Need To Disable Horizontal Scrolling - Why Is HScroll Property Ignored?

Thread view:

Enable EMail Alerts

Start New Thread

Thread rating:

j0rd4n - 09 May 2007 19:37 GMT

I have a user control that needs to allow vertical scrolling but not
horizontal scrolling. In the user control's resize event, I need to
adjust the size of all the children controls. For this to work
correctly, I need the AutoScroll to not enable the horizontal
scrollbar.

After researching MSDN, I found the HScroll which can be used to
disable horizontal scrolling when the AutoScroll mode is enabled.
However, when I disable HScroll, it gets re-enabled again when my user
control is resized. I tried disabling at the beginning and front of
the resize event handler of the user control, but it still flips back.

Any ideas on how to get this to work?

Reply to this Message

Brian Schwartz - 10 May 2007 00:02 GMT

Just a shot in the dark--I haven't used HScroll--but what if you disable it
in the Paint event? After a resize, the control is invalidated and painted,
and it may be getting enabled sometime during the paint.

Signature

Brian Schwartz
FishNet Components
http://www.fishnetcomponents.com
Fish Grid .NET Light: Powerful Layouts for Small Datasets

>I have a user control that needs to allow vertical scrolling but not
> horizontal scrolling. In the user control's resize event, I need to
[quoted text clipped - 9 lines]
>
> Any ideas on how to get this to work?

Reply to this Message

Brian Schwartz - 10 May 2007 00:15 GMT

Or, as Peter Duniho has pointed out, you might want to override OnPaint to
accomplish this, rather than attaching to the event, depending on your
situation.

Signature

Brian Schwartz
FishNet Components
http://www.fishnetcomponents.com
Fish Grid .NET Light: Powerful Layouts for Small Datasets

> Just a shot in the dark--I haven't used HScroll--but what if you disable
> it in the Paint event? After a resize, the control is invalidated and
[quoted text clipped - 13 lines]
>>
>> Any ideas on how to get this to work?

Reply to this Message

j0rd4n - 10 May 2007 19:00 GMT

Unfortunately this didn't work quite like I had hoped. It worked in
some cases but not others. For instance, if the application starts up
maximized but the control needs scrollbars, and then it is restored to
its non-maximized size, the horizontal scrollbar appears.

Any other ideas? I tried using the Win32 ShowScrollBar method to
disable the horizontal scrollbar but this just hide it (didn't
actually affect the horizontal sizing of the form).

On May 9, 4:02 pm, "Brian Schwartz" <o...@fishnetcomponentswos.com>
wrote:

> Just a shot in the dark--I haven't used HScroll--but what if you disable it
> in the Paint event? After a resize, the control is invalidated and painted,
[quoted text clipped - 18 lines]
>
> > Any ideas on how to get this to work?

Reply to this Message

Need To Disable Horizontal Scrolling - Why Is HScroll Property Ignored?

Free Magazines