I want to hide a control in Avalonia, and then the space occupied by this control will be occupied by adjacent controls, just like the visibility.Collapsed in WPF.
In Avalonia, use the the property IsVisible (boolean)
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I have 2 panels on windows form and both occupied the equal portion on form (i.e. 50%- 50%). Once i run the application, I want to resize the panel size by dragging form with mouse (i.e. 25%-75%). The portion given is not fixed it can be in any size. I just want to resize the panel by dragging/streching mouse.
Please help to resolve the issue.
Thanks,
Soorajbhan kuntal
I think you want to use a SplitContainer control on your form. Put the Panel controls into the two different containers of the SplitContainer, and set their Dock property to Fill. You can set the SplitContainer to Dock.Fill too or set the Anchor properties such that the SplitContainer stretches along with the form.
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.
I am trying to populate my windows form with new controls and data based on what is read from my database. The left side of the form is a static panel which will not need re sizing but I need to create multiple labels on the right side which requires more space. I added the vscroll control but am having trouble increasing the size of the right side of the form.
To use a scroll-bar will require a semi-low-level implementation where you need to always update the view by repositioning the elements, calculating your scroll-bar in relation to total view, what elements would be visible and so forth.
A better solution in this case will probably be to add a Panel control on the right which is docked (f.ex. Fill) and then set the AutoScroll property to True.
This way you leave all the "low level" stuff to the Panel control and you can add and position the elements you need to the Panel's Controls collection instead.
How do you set the maximum range for the horizontal and vertical scrollbar in a panel
in VB.NET 2008 ?
Set the AutoScroll property for the Panel to True. That ensures that the Panel automatically adjusts the scrollbars to keep all controls inside the panel viewable. You can override this behavior, in case you don't use controls or want a margin on the far end, by setting the AutoScrollMinSize property.
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.