I have a SplitContainer in my form.
On the 1st panel I have a TreeView and a ListView on the 2nd. (Classic)
Now I want to limit the size of the 1st panel (with the TreeView) to 250 pixels wide.
I wish to block the separator from moving too much (or too less).
How do I do that?
You can use SplitContainer.Panel1MinSize property.
SplitContainer1.Panel1MinSize = 250;
First, if you want to constrain the TreeView to be EXACTLY 250px, set the FixedPanel to be Panel1, set the IsSplitterFixed property to True, and set the Panel1MinSize to 250. This basically makes the split graphical only; the splitter will default to a size large enough for the TreeView, and will not move.
If you want to constrain the TreeView to be AT LEAST 250px, simply set Panel1MinSize to be 250. This will prevent the user from making the panel SMALLER than that, though they can make it LARGER. There is no maximum constraint, but you can get the effect of one by setting a maximum size for the window and a minimum size for the other panel of the SplitContainer.
Just a little addition.
Here is the code to place in the frmMain_Load() (or whereever). In the code, the minimum is 250 pixels and the maximum is 400 pixels.
this.splitContainer1.Panel1MinSize = 250;
this.splitContainer1.Panel2MinSize = this.splitContainer1.Width - 400;
Do not forget to place the same code in the resize event frmMain_Resize()
I guess you should take look at the FixedPanelProperty of the splitContainer. I allows you to only let the other panel grow and shrink on rezise operations:
The resizing is much smoother.
Related
I have a form that is pretty large in the IDE at design time (905 X 813).
I added this code to make the form full screen:
private void Form1_Load(object sender, EventArgs e)
{
TopMost = true;
FormBorderStyle = FormBorderStyle.None;
WindowState = FormWindowState.Maximized;
}
...but the controls hug the Northwest corner and still leave a lot of "dead space", as the form is magnetized to the northwest corner, rather than its controls growing in size.
How can I get the controls to expand in all directions, filling the entire screen?
This doesn't need to take into consideration different monitor sizes or such - it is simply a mockup.
I tried to set the outer Panel's Anchor property to the middle/"all" setting, but it won't allow me - it stays on "Top, Left"...?!?
It's not too much clear to me... You can utilize ANCHOR, enabling LEFT and RIGHT to make the control grow to right direction, and disabling LEFT to make it "walk" through the form. Certainly doing a task on each control you will achieve the desirable position/size for them.
Anyway, you can manually index all positions and sizes of all controls using variables to get WIDTH and HEIGHT and calculate a kind of index. It is a big task to do but it enables you to control exactly each control position and height.
Bu if you want to redim the controls keeping all proportions (I mean, changing their FONT size), maybe this code may help you: http://www.codeproject.com/Tips/1025766/VB-NET-Dynamically-Resize-and-Reposition-All-Contr
Usually, in Wpf, I put all my controls in a Grid were every control takes spot(s) of its rows and columns. And I "lock" each control's size to its spot(s) by setting its size to Auto. Then I "lock" (size="Auto") the whole Grid with its parent, the Form. This way when the Form expands, the Grid expands, all its rows/columns expands, equally => Therefore all controls follow the expand equally.
In Winform, you could ise the TableLayoutPabel which is the equivalence of Grid in Wpf. Now, if you anchor to all 4 sides, the control will retain its size ratio according to the size of its parent, in this case its slot. So when the form grows, the slots grow, therefore forcing all controls to grow in SIZE.
I've got a DataGridView with the RowHeaderVisible property set to false;
I have the margins and padding set to 0;
then the size is equal to the header widths added together...
Why is there extra space still needed to show the full control? (There is a horizontal scroll bar visible) What property does this, or how would you get an accurate measurement of the exact (actual) sizing of the control?
I havent used one for a while but if its like a listview, the headers should be less than the width to leave space for the vertical scrollbar - presuming you have one. Try reducing the width of one of the headers, or increasing the control width
I have two panels: panelA, panelB in a panel: panelContainer.
How do I make panelA and panelB go side by side taking 50% width each of the panelContainer?
Use TableLayoutPanel with one row(100%) and two columns (50% each).
You can use SplitContainer instead of panel. Set IsSplitterFixed to true, in design mode set SplitterDistance to be half of SplitContainer's width and set the SplitterWidth to 1. Make sure that FixedPanel is set to none. Then at runtime it will maintain the ratio of panels widths.
The only problem is that you can't set SplitterWidth to zero so there will always be a slight distance between panels. If that's not a problem and if you don't need the panelContainer to actually be a panel for some reason, that's the way I would do it.
Check SplitterDistance Property. Override form resize and set this value = form.width / 2;
See more.
https://learn.microsoft.com/en-us/dotnet/api/system.windows.forms.splitcontainer.splitterdistance?view=netframework-4.8
I have a Window that is autosized around it's content. For an animation I'd need it's width and height. ActualWidth is always the max width of the window, Width and Height properties say NaN.
ActualWidth/ActualHeight will give you the actual sizes of the window - given by the layout system, which is based on the actual rendering of the window. These should be the sizes you are looking for. However, there might be a slight delay in the calculation as it is based on rendering, so if they are wrong I guess they aren't calculated yet - and you got a race condition going on.. You can read more about this in links above, where there are some important notes on when the actual sizes are calculated - and hence - why they can be delayed.
Width/Height are requested sizes, and if not set explicitly they will hold their default values, which is Double.NaN.
You can use the Window's UpdateLayout()-Method to have ActualWidth and ActualHeight validated.
Whenever possible you should use a ScaleTransform instead of changing Height and Width values when animating a size change. Not only can it help with performance, but it also gets around issues like this since instead of setting a specific size value which you may not know, the scale values are specified as percentages.
i have 3 custom controls, that i want to place in a resizable window next to each other. when the window is being resized, these controls should also resize, each taking 33% of the available width.
i tried to use a table layout, but it seems the table only grows, but never shrinks.
thanks for any help on this!
You can use a TableLayoutPanel, with 3 columns each of size "33% percent". Then you put each of your control in the panel, and set the anchor property as you wish (for example right-left if your control should resize themselves only on the horizontal plane).
Your TableLayoutPanel should also have its property Dock set to True so that he can occupy all your window and resize accordingly.