I can't get out from my problem.
I have a panel with multiple controls and I want them be as large as the panel width.
These controls can be extended and collapsed by a clicking a button, showing or not some controls they contain.
So the I've set Dockstyle.Fill = true for the panel.
The problem is: when I click for extending one of this controls, the scroll bar is showed (and it's ok) but it automatically cause a resize of the width of the controls in the panel and it is really bad looking and slow, because I have a lot of controls!!!
I have tried adding Padding and Margin to the panel, but with no result.
I have tried making a first panel where to put the controls with a fixed width less 40px (more than the size of the scrollbar) and a fixed height with Dockstyle.Fill = false and then putting this first panel inside a parent panel with Dockstyle.Fill = true, but with no result. The scrollbar doesn't show itself when I click for extending one control.
The following one should work (i'm working on it):
the panel should have Dockstyle.Fill = none and when I click to extend or collpase the control I should also adjust the height of the panel (panel's height = heights' sum of all elements visibile in the panel)
Related
I've already seen similar questions but still could not get it to work
I have the following controls on my Form (refer image):
A: a groupbox
B: another groupbox
C: a panel which contains A and B
Height of the panel is adjusted on window resize. I have tried using Autoscroll = true on the panel but the scrollbars won't show.
The groupbox A is anchored to Top Left and has dock Top. The groupbox B is anchored to Top Leftbut has dockFill`.
Any idea why the scrollbar isn't showing ?? Also, What dock property should I give to new controls ( groupbox, maybe ), if I plan on adding more of them. I would want to show them one below the other.
Make your GroupBoxes To dock Top both. and turn autoscroll on true for your panel. That way they will stack on each other expanding themselfs down and ignoring the panel height. Also set a minheight and minwidth for both so if the panel gets to small it will start so overflow and show the scrollbars.
In my form I have a panel with autosize = true.
The panel contains a SplitContainer control with 2 panels arranged horizontally.
The top panel contains a datagridview and the bottom panel contains a textbox.
Is there a way I can programmatically resize the top panel, and hence the entire SplitContainer based on changes in the height of the datagridview (determined by the number of rows)
UPDATE:
I am now able to resize the SplitContainer which has Dock = Bottom, however, the Layout event of the parent panel does not get fired in response to changes in the height of the SplitContainer control even thought the parent panel has Autosize = True
Try setting the splitter distance of the SplitContainer based on the height of the grid.
SplitterDistance Gets or sets the location of the splitter, in pixels, from the left or top edge of the SplitContainer.
Via https://msdn.microsoft.com/en-us/library/system.windows.forms.splitcontainer.splitterdistance(v=vs.110).aspx
Edit
What worked for me was to set Dock for the SplitContainer to None, which then allowed me to set the size of the SplitContainer (calling SplitContainer.Height) and having the panel resize itself to fit the SplitContainer.
Edit 2
To allow the SplitContainer to auto-size its width, you can try the following:
splitContainer.Width = this.ClientRectangle.Width - (splitContainer.Location.X * 2)
This.ClientRectangle.Width should get the width of the window without the border (if the parent is the form).
For some reason that I dont manage to understand, if I force the panel size in the code the object gets the right size.
If I define the panel size 300x300 in the IDE, later is shown smaller and the lines are not visible.
public Form1()
{
InitializeComponent();
panel1.Size = new Size(300, 300);
}
I'm making an instant messaging application in C#. The problem that I'm facing right now is that for the contacts list I've made a custom control extendinguserControl, which contains aFlowLayoutPanel`.
That panel will contain a list of userControls. I want to customize the VscrollBar, but no chance (not possible). Instead I have this genius idea to hide the VscrollBar from the FlowLayoutPanel, and make simple buttons (UP and down events). For this everything worked like a charm, but when I tried to hide the VscrollBar by making the property autoScroll = false , the buttons stopped working.
How can I hide the VscrollBar?
If you want to hide the the vertical bar, there are some possible solutions. ..
You could make an event for resize, controls add, controls remove and set all the child controls' width to flowlayoutpanel.width -20
You could add a panel to the flowlayoutpanel and set it to autosize and make the panels may width to flowlayoutpanel.width-20.
You could check if the width of the flowlayoutpanel is bigger than its real width (means vscrollbar appeared) , and resize the children that it'll/ld hide again
and if you are sure that your controls are smaller than the flowlayoutpanel's width, you simply could create a panel which covers the vertical bar. (use .BringToFront() to put it before the flowlayoutpanel's scrollbar)
I hope that I understood and perhaps have solved the problem
What are the rules which I have to respect to make the Form scrollable...
I simple set the Property AutoScroll to true.
I also tried while Auto Scroll is true, to set AutoSize to true/false, but none of these worked... also tried to put Panel and added all components in there... still nothing...
Maybe using V or HScrollBar can help, but i really don't know how to link it with the Form...
form.AutoScroll = true;
formMainLayout.AutoScroll = true;
rootPanel.AutoScroll = true;
The content controls the scrolling. The scrollbars do not appear unless they are needed. Usually, there is a property available that you can set to force them to be visible always, and simply disabled until needed.
The AutoScroll property must be true, as you have already found. But then the content of the scrollable control must force the parent control to display the scrollbars. This part is up to how the controls are embedded within the parent.
Try these two experiments:
Place a Panel on your form and dock it to Fill. Set the AutoScroll property of the Panel to true. Into that panel, place a TextBox and set it to dock as Fill as well. Also set MultiLine to true. Run the application, and you will notice that the size of both is simply using the available space...no scrolling can occur because neither the Panel, nor its TextBox become larger than the space they occupy.
Perform the same steps as in #1, but this time, do not dock the TextBox. Instead, set it to a large size, something that you know will be larger than the amount of Panel that is visible. Running the application should now produce a scrolling Panel.
Hopefully this little test helps to demonstrate what is controlling the scroll on a form.
I was also having the same problem, I managed to fix it...
All the child controls inside the panel had a Left & Right anchor, and when I only set the anchor to Top, the scrollbars where working fine.
I am not sure as to why the Left and Right anchor (of the child controls) forces the panel not to show scrollbars.
But anyways... hope this will help anyone as of this date.
The AutoScroll property should work fine, but most likely you are not using it right: the bar appears only when required. Example: minimum Y of the Form is 0 and minimum Y of one of the controls in it (a TextBox) is -20.
If you want to include a scroll bar no matter what (controls inside the boundaries of the form or not), you can also do it. Sample code (from MSDN) for a vertical scroll bar:
// Create and initialize a VScrollBar.
VScrollBar vScrollBar1 = new VScrollBar();
// Dock the scroll bar to the right side of the form.
vScrollBar1.Dock = DockStyle.Right;
// Add the scroll bar to the form.
Controls.Add(vScrollBar1);
You need to set the properties for the parent panel.
Dock = Fill
Anchor = Top, Left
AutoScroll = true
That's it. Good luck! ^^
note its for vertical scroll
Turn On auto scroll property of your Form. insert one panel and
set panel width to the form width and panel height
equal to length of your total content or may be 1300 or 1500 as
required.
Place panel location as you want set panel anchor
property to top. place your all
content inside panel.
hope it will solve your problem
I had the same problem.
You have to add only this:
this.AdjustFormScrollbars(true);
I'm not sure what it's called in the land of WinForms, but in web development terms, I'm looking for a frame type element that can be added to a winform.
I want a panel that is anchored top,bottom,left,right but if the form the panel is resized to a smaller size than the elements in the panel, scroll bars will appear around the panel allowing the user to see the contents of the panel without expanding the form.
I hope that makes sense, and that such a thing exists.
Thanks!
Yes, a Panel control. Set AutoScrollMinSize to the minimum size you want before scrollbars appear. Set AutoScroll to True. Set MinimumSize if necessary, it shouldn't be.
The controls inside the panel need to auto layout by themselves so they'll move as necessary when the panel gets smaller. Use their Dock or Anchor properties. If the layout gets complicated then switch to a TableLayoutPanel or FlowLayoutPanel control.
What about a panel? System.Windows.Forms.Panel
You are looking for a "Panel" control. Just set the "Dock" property to get docking going..
You add a Panel to your form and set Panel.Dock = Fill. Your Panel will auto-resize when you resize the form.
Set Panel.AutoScroll = True
Then, you add controls to your Panel. Set the controls' Dock property accordingly. Now, when you resize the form, scrollbars will appear if controls are covered up.
There are a couple of different panels in the standard windows controls that do what you want... just look in the toolbox when editing a windows form, under 'container'
What do you want it to contain? A web page, or just windows form controls?