why does build resize form controls?

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shamus - 20 Nov 2004 18:24 GMT

I'd posted months without having a grasp of what the problem really is. The
issue is with an Infragistics UltraWinListBar control. It's on a base form,
many forms inherit from the base form. The UltraWinListBar controls on the
inherited forms seem to want to use their own size information instead of the
inherited size values. I hit reset in properties, and the control returns to
the inherited size (75,568). But, then I build (or rebuild) and the control
returns to 75,547. It's bizarre and frustraing. Locking the control does no
good. Is something stuck in a cache somewhere? I just don't get it. If anyone
knows of this issue, I'd appreciate a response.
Thanks,
Shamus

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shamus - 20 Nov 2004 19:37 GMT

And, I just searched my whole local file system. No source code file contains
the string '547'. Also a project level search in VS reports no generated
hidden winform code setting the control to 547 height. So, I'm stumped as to
how much less why the control resizes to 547 high. Anybody?

shamus

> I'd posted months without having a grasp of what the problem really is. The
> issue is with an Infragistics UltraWinListBar control. It's on a base form,
[quoted text clipped - 7 lines]
> Thanks,
> Shamus

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shamus - 20 Nov 2004 20:07 GMT

I also just noticed, I don't even have to build, I can just reset the form
size, save, close the form and when I reopen it, it resizes, frustrating at
best.

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shamus - 21 Nov 2004 20:19 GMT

So, has anybody else even seen this? I ask because I've never been able to
get a reasonable explanation. Or any explanation actually. I find it hard to
believe that I'm the only person whose run into this issue.

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Bob Powell [MVP] - 21 Nov 2004 20:33 GMT

Ask Infragistics?

Forms I create seem to remain the size I assign to them. I'm not using
Infragistics tools so I suspect that the problem you're seeing is solely to
do with a third party product.

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Bob Powell [MVP]
Visual C#, System.Drawing

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saurabh - 13 Dec 2004 13:45 GMT

I would say, its to do with autoscaling. The Winforms autoscale depending on
the fact that the font size in design mode is different to the one when its
running. When the AutoScale property is set to true, the framework checks
for the AutoScaleBaseSize and then scales the controls accordingly.

Are you using 120 DPI whereas the base one was designed at 96 DPI or other
way round

--Saurabh

> I'd posted months without having a grasp of what the problem really is.
> The
[quoted text clipped - 14 lines]
> Thanks,
> Shamus

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saurabh - 13 Dec 2004 13:59 GMT

Try searching for a line like this :
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);

I suspect that the size is different for base form and derived form.
possibly (5, 16) ?

--Saurabh

>I would say, its to do with autoscaling. The Winforms autoscale depending
>on the fact that the font size in design mode is different to the one when
[quoted text clipped - 25 lines]
>> Thanks,
>> Shamus

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why does build resize form controls?

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