So I'm having troubles making my FlowLayoutPanel work the way I want.
When adding multiple controls to it so that vertical scroll appears and when scrolled to bottom I don't want controls to be touching the bottom border of FlowLayoutPanel.
Padding works properly for all but the bottom side, controls are properly spaced away from the edges of the FlowLayoutPanel, I don't know why bottom is special.
I need a solution that does not include adding invisible/transparent controls to it.
The closest I got to what I want was lowering the clientsize by some amount, but then in that area control doesn't repaint so it shows parts of added controls forever.
Kind of fixed with with larger margins on child controls, so I'm closing this.
Related
i have two richtextboxes of the exact same size located on my form. However, when I run it, one's height reduces. There are other controls around it so it leaves a weird space. What causes that?
Form in the Design tab
Form once I run it
I've tried constraining the control with the "same height" button, I've created a new richtextbox, but it keeps on happening.
It also depends on computers, on screens with unusual resolutions the box is the correct size.
Thank you
Its because scroll bar coming in picture. In order to uniformly set the positions and sizes of RichtextBoxes use DOCKING or Anchoring properly
I am trying to get 2 listview objects to work on a powerpoint slide. I can place them anywhere on the slide, but when I start the slideshow, 2 smaller copies appear in the upper-left corner. Text added to the listview appear in the upper-left boxes. I can't select the original listview either.
How can I prevent the 2 copies from showing up so I can work with the listviews I positioned on the slide?
The slide
http://prnt.sc/ectyx6
The Slideshow
http://prnt.sc/ectz8u
I looked into it a bit, and I think it's just a glitch with the Listview control.
From my tests, the actual Listview control was smaller then the original, but the top left position was correct (after the first time in reading/presentation view). I assume the they are smaller because it doesn't have a zoom property, and the slide is stretched to fit the window.
If you really want a Listview...which I hate to call into question, but think is warranted...then you can just Insert a Rectangle without a border over the Listview control to hide the original placeholder. The real Listview will still get drawn on top.
I think this is just the beginning of your troubles with a Listview control in PowerPoint...are you sure that you need it. Maybe linking to an Excel file with the Listview would be better, or some use of animation.
I have a TableLayoutPanel within a FlowLayoutPanel so that I can have a 3D border around the table, but be able to define the positions of controls within the table as I wish. I would like to have the TableLayoutPanel fill the FlowLayoutPanel but when I use the docking property, the TLP seems to bunch up at the top of the FLP.
How can I get the TLP to dock so that it will resize when the form is resized?
I generally find that Docking is more trouble than it's worth. In most cases Anchoring seems to work far better for me. Try disabling docking, then resizing the control so that it fills the panel they way you want, then setting it to anchor on left, right, top, and bottom.
Also, as others have mentioned, try using a normal panel instead of a FlowLayoutPanel. The specific layout panels have special code in them that handles resizing child elements that will probably interfere with your other resize logic.
ADDENDUM
Docking always snaps against the side of the container and forces the 2 sides on the other axis against the edges as well. Anchoring allows you to set specific positions and then tie one side of a control to it's parent so that resizing the parent keeps that side of the control the same distance from the parent. 99% of the time, in my experience, anchoring does everything that docking does and more, with far less frustration. I think that Splitterbars are the one of the few times that docking is required, but even then it can be emulated using a splitter panel. Things like ToolStrips and menus are the best use case for docking that I can think of.
My main form has two panels, left docked and right docked. The right side panel has two child panels with top dock and bottom dock settings. The usercontrol is added to the right side top panel.
My usercontrol has a panel and a label. The panel is anchored on all 4 sides, the label is anchored on all except the bottom. At runtime I create this usercontrol and set it to dockstyle=fill and then I add it to my top right panel.
With everything set to "fill" I expect that when I add my usercontrol to the panel it will take on the appropriate width and height and pass that info to the child controls (labels) inside of my usercontrol.
My problem is that this stretching of the size does not happen when I create my objects during the Load event on my usercontrol. Even though initializecomponent has ran for the usercontrol the panel inside of it (4 corners anchored) has not taken the x/y values of the available space. As a result my usercontrol shows up about 50% of the width I want.
Lets say that instead of creating objects during usercontrol load that I instead start a timer and have the timer call my create routine when it raises the tick event. When I do things like this my objects are created with the full width/height that I expect. The only issue here is that this causes a delay in my interface.
Can someone help explain this behavior? My mainform is calling a "load gui" routine which is instantiating usercontrols, setting panel sizes, and then adding usercontrols to those panels. This particular user control is the last to load into the panels from that load gui routine so it does not make sense that the parent panel width/height would not be known yet. This is one of my first apps where I am purposely trying to use dockstyle=fill to keep things consistent across different main form sizes without writing all the extra size_changed code handlers. I'm sure this one is easy to work around once I know where the problem lies.
Thanks for any help provided!
this turned out to be a padding issue on the parent usercontrol. I also had to allow a bit of wiggle room to make sure that the controls didn't overflow the panel so I did a parent.width - 15 and that along with the padding made everything work much better.
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.