panel

问题 I am beginner in c#. In my project, I populated a xml file inside a TreeView control. If the xml file is large, the TreeView control is showing the data with scroll bars. Beside this, whenever the user double clicks a node I am showing a panel beside the selected node something like this.. When I scroll the TreeView Control : My question is how to make the panel attached to treeView control so that eventhough the user scrolls the TreeView control the panel should also move along with the

问题 I have a class: public class ANote extends JDialog{...} In GNOME(Linux) it shows an entry in the gnome-panel. I want it to show nothing (under Windows the instances of JDialog show nothing in the Windows taskbar), because there may be present several instances of the class simultaneously, and this overcrowds the gnome-panel. How do I prevent it from showing an instance in the gnome-panel? EDIT: So far I have tried playing with the modality, which hides it from the gnome-panel, but blocks the

问题 I want to draw a line by mouse(interactively) , I used C# and WinForm, the line should appear at any time from the starting point(when the mouse press on the panel) to the current position of the mouse, exactly like drawing a line in Paint program. but the code produces a lot of lines, i know why but i don't know how to overcome this problem Here is my code: namespace WindowsFormsApplication2 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } Graphics g; Pen myPen

问题 I use a parameterized class to build my Panel dashboard. I would like to use a CrossSelector but this selector does not seem to be available when looking at the options that library Param gives. It only seems to have a ListSelector. How do i get this CrossSelector using Param? import param import panel as pn pn.extension('bokeh') class ValveExplorer(param.Parameterized): selected_features = param.ListSelector( default=[1, 3], objects=[1, 2, 3, 4], ) # show list selector pn.Row(valve_explorer

问题 I don't have any problem saving panel as image with UI thread but i have only a black rectangle when i save this panel at another thread except UI thread : using (Bitmap bmp = new Bitmap(panel1.Width, panel1.Height, System.Drawing.Imaging.PixelFormat.Format24bppRgb)) { if (panel1.InvokeRequired) { panel1.BeginInvoke((MethodInvoker)delegate () { panel1.DrawToBitmap(bmp, new System.Drawing.Rectangle(Point.Empty, bmp.Size)); }); Bitmap bb = bmp.Clone(new System.Drawing.Rectangle(0, 0, 1016, 648)

问题 I use the custom panel function (found here) to display data labels on the graph. require(HH) # also loads: lattice, grid, latticeExtra # custom panel function myPanelFunc <- function(...){ panel.likert(...) vals <- list(...) DF <- data.frame(x=vals$x, y=vals$y, groups=vals$groups) ### some convoluted calculations here... grps <- as.character(DF$groups) for(i in 1:length(origNames)){ grps <- sub(paste0('^',origNames[i]),i,grps) } DF <- DF[order(DF$y,grps),] DF$correctX <- ave(DF$x,DF$y,FUN

问题 I love SO. In 8 out of 10 questions it produces a straightforward and immediately usable answer. Or at least explains why my question is somehow wrong. So I found it strange that I couldn't find an answer to my liking for this simple and, I had asumed, rather common question. After searching high and low I patched together the below solution. It works alright but I wonder: Are there flaws in it? (e.g.: do I need the dispose?) Is there a better solution, maybe with less copying going on? I'd

问题 I'm creating a winforms app in vb.net and I have a panel with some labels in it. The labels go past the bottom of the panel so the panel shows a vertical scroll bar automatically (which is what I want). However, whenever I scroll the panel down using the mouse wheel, it stops scrolling when one of the labels scrolls up under the mouse. It's like the focus has changed from the panel to the label and the label doesn't need to scroll. I want to just scroll the whole panel using the mouse wheel

问题 i am writing a stand alone app in java using a couple of JPanel with different layouts in order to arrange the user interface. now my problem is that when i take the upper side of the window (its a pannel in a border layout which is inside another panel which using border layout),im tring to add a class that extends panel is order to paint an icon on the top of my window (draw on the panel) . the problem is that the layout is cuting a part of the icon, or in other words, minimazing the panel

问题 What is right way to show large image in Winforms app with scroll-bars and keyboard scroll support? Currenty i'm use Panel(AutoScroll=True) with nested PitureBox (SizeMod = AutoSize). I have 2 question: 1) What control select for drawing image? Panel and PitureBox cant be selected (focused) using Tab key. Using Button with AutoSize = true and FlatStyle = Flat is right solution? 2)How to scroll image in panel using keyboard. What keyboard events a need handle - Form, Panel or PictureBox. May