I have problem in using user control in vb.net. Everytime I run the program the user control was being resized. Can anybody help me on how to stop the user control being resized during runtime?
I am looking for something like Locking the property of the form but it doesn't work.
Thanks in advance.
Your usercontrol has AutoScaleMode property. Try to check this property!
I had a similar problem. AutoScaleMode property in my usercontrol was default in Font. My font was 9pt, but the parent control had 13pt font. So the size of the controls in my usercontrol auto scales with ratio 13/9.
couple of things to check:
do you use docking? - it will resize following parent control if yes
do you use anchor? - it sometimes gives odd behavior too
some controls have AutoSize property, did you set it true or is it by
default true?
some controls have AutoWidthInLayoutControl, did you
set it true or is it by default true?
another try, some controls do have Maximum and Minimum size, set these values to your desired if necessary.
Related
I noticed the groupbox label is different at runtime, I tried some properties like anchor or autosize but it doesn't seems to work.
Image sample
How can I try?
Thanks
Eventhough I don't know if this is a workaround or the solution but I realized that Flatstyle property needs to be set to System. This way you can also center the text of groupbox.
I am trying to make a form with a border like the border on the Windows Vista volume control. The form would need to be resizeable as well.
Thanks, giodamelio
To be a little more clear about what I am looking for.
Here is a form with the ControlBox property set to false.
Here is a rough Photoshop of what I am looking for.
Set the forms .Controlbox=False
Set the forms .Text=""
Done.
You can enable in your Projectsettigs "enable XP-Visual Style".
If you launch your application now, you should have the default borderstyle of the launched OS
Try setting the FormBorderStyle to None or Fixed(3D|Single) and work from there, perhaps.
Alternatively, setting the ControlBox to False should also have the effect of hiding the title bar. However, beware that the form won’t update automatically:
If you set ControlBox to false, and also set the Location property, the Size property of Form will not update to reflect that the non-client area of the form has been hidden. To fix this problem, put the code which alters the Location property to the HandleCreated event.
One way achieve this by following steps:
Set FormBorderStyle of your Form to None.
Take a PictureBox, set its Dock Property to Fill.
Take a image containing Border, and set this Image to the PictureBox.
Sometimes, I have a picturebox lets say 100x100. But the image it will display is actually 100x400.
I don't want to increase the size of the picturebox itself. Instead, I would like to create a vertical scrollbar (or horizontal if needed).
I could not find a scrollbar in the toolbox, so I guess I have to code it. But, how?
And I still wonder if I didn't make a mistake and didn't see the scrollbar in the toolbox. My apologies then :(
I suppose you could add separate scrollbar controls and sync their Scroll events up with the offset at which the picture in the PictureBox is drawn, but that sounds like actual work. There's a better way.
Add a Panel control to your form, and set its AutoScroll property to "True". This will cause the control to automatically show scrollbars when it contains content that lies outside of its currently visible bounds. The .NET Framework will take care of everything for you under the covers, without you having to write a single line of code.
Drag and drop your PictureBox control inside of the Panel control that you just added. The Panel control will then detect that one of its child controls is larger than its visible area and show scrollbars, thanks to the AutoScroll property. When the user moves the scrollbars, the portion of the image in your PictureBox that is visible will be automatically adjusted. Magic.
(The reason you have to use a Panel control as a container is because PictureBox does not inherit directly from the ScrollableControl base class, which is what provides the AutoScroll property.)
I tried this and it worked well. But I noted that if the picturebox is docked in the panel, the picturebox is automatically set to the size of the parent panel, and can't be set larger (at least not in any way I could find). This defeats the purpose of the technique. So -- put the picturebox on the panel, but don't dock it, and it will work perfectly.
There are no automatic scroll bars on a picture box, but you can add the VScrollBar (and HScrollBar) control to the form and handle the image scrolling manually by redrawing it at a different offset each time the Scroll event is fired.
I plan on using a scrollbar for, well, scrolling an image. The image is 200x500, however, the only visible area is 200x250.
So I set the max value to 250, and the min value to 0. The idea is that if I drag the scrollbar's button to the bottom, 250 pixels will have moved for the image, right?
But wait, the scrollbar's button is.... very small. And the scrollbar is actually pretty long. Is there a way to make the scrollbar's button longer?
How did you create this scrollbar? Is it a separate control all together, or it is a component of another control? I do know that scrollbars added separately act kinda funny at times.
What I would suggest is using the scollbars built into another container control, which should achieve the exact same effect.
Create a new panel control on your form, and name it. (I suggest something like panelPicture)
Position the panel where you want your picture to be.
Set the panel's size to 200x250.
Set the panel's "Autoscroll" property to True.
Put a PictureBox inside this panel, and name it. (I suggest something like picMyPicture.)
Set the PictureBox's position to 0, 0.
Set the PictureBox's size to 200x500 (or whatever is necessary).
Set the PictureBox's Image property as desired.
Now, the scrollbar should automatically appear on the picture, and it should look normal.
As a side note (which may or may not be relevant), users typically don't like having to scroll to see the rest of an image, so if you don't need the user to scroll down on the image for some definitive purpose (or because you don't know what the size of the image that will be handled is), I'd try and change the size of things on your form so scrolling will not be necessary.
I hope this helps!
I'm disabling a button in vb.net and when I do, I cannot control the BackColor or ForeColor properties to change the appearance. I set new values for them but they don't get picked up. The disabled button looks almost exactly like my enabled buttons so you can't tell the difference. I'm using Flat Style buttons, but have tried changing this and it still doesn't seem to work. Is there some sort of trick to be able to do this?
I ran into a similar problem in VB.NET 2008.
When I set the background color of a textbox to something other than the default at design time, then when I disabled that textbox at runtime, it did not get that 'disabled' look; the background color remained unchanged.
To get around this, I had to override the OnEnabledChanged method and manually set the background to what I needed.
This is a little different than the problem you have, but I think that overriding the OnEnabledChanged method might help you out.