scrollbar

问题 How can I create a custom scrollbar for a UITableView? I want to remove the default one that pops up when tracking begins and that disappears when tracking ends. I want, instead, to have one similar to that in a computer program: (a) it's on the right side of the screen and permanently visible; (b) manually scrolling the bar will scroll the UITableView to the appropriate position; (c) scrolling the UITableView will scroll the scroll bar appropriately (without showing the default one that

问题 MouseWheel event doesn't fire when I' am using any control (ListBox, Panel, TextBox) with scrollbars. To reproduce problem: public class Form1 : Form { private readonly Button button1; private readonly TextBox textBox1; private void button1_MouseWheel(object sender, MouseEventArgs e) { ToString(); // doesn't fire when uncomment lines below } public Form1() { button1 = new Button(); textBox1 = new TextBox(); SuspendLayout(); button1.Location = new System.Drawing.Point(80, 105); button1.Size =

问题 How to program scrollbar to jump to bottom/top in case of change in QPlainTextEdit or QTextEdit area? It looks like it doesn't have any controlling function. 回答1: QTextEdit and QPlainTextEdit are both inherited from QAbstractScrollArea. The QAbstractScrollArea object provides access to the scrollbar through the verticalScrollBar() method. Thus, to jump to the top: ui.textEdit->verticalScrollBar()->setValue(0); And to jump to the bottom: ui.textEdit->verticalScrollBar()->setValue(ui.textEdit-

问题 How to program scrollbar to jump to bottom/top in case of change in QPlainTextEdit or QTextEdit area? It looks like it doesn't have any controlling function. 回答1: QTextEdit and QPlainTextEdit are both inherited from QAbstractScrollArea. The QAbstractScrollArea object provides access to the scrollbar through the verticalScrollBar() method. Thus, to jump to the top: ui.textEdit->verticalScrollBar()->setValue(0); And to jump to the bottom: ui.textEdit->verticalScrollBar()->setValue(ui.textEdit-

问题 I need help explaining to my boss why her design is poor on a client's website. She has no knowledge of the web, and it can be difficult as a web developer working with a woman who is a graphic designer (not even a web designer really). On a current site she has designed, an image bar "needs" to be ~1200px according to her, though it isn't necessary with the content. A quick sketch to illustrate what's going on: As you see, the banner spills out past the 960px of the content and as wide as

问题 I have a Javascript tabbed dialog whose pages have different heights. Some of them are taller than the browser window. In Internet Explorer, there is always a scrollbar to the right. When it is not needed, it is greyed out. The page dimensions stay the same and there is no problem. In Firefox, the Scrollbar is hidden completely when not needed constantly changing the page's dimensions on each page change and thus the width of the whole tabbed dialog (it has a relative width). This is very

问题 As Mentioned in Title, I want to change the header of my TabControl to be scrollable. The reason: I have too many tabItems, and the wrapping is not the best solution in my case. so I want to change it from : To something like that (Scroll bar indicated by the arrow) : Can anyone help me and show how to do that ? (I'm using wpf) 回答1: Changing TabControl.Template to something simple like this seems to work for me <TabControl ...> <TabControl.Template> <ControlTemplate TargetType="{x:Type

问题 As Mentioned in Title, I want to change the header of my TabControl to be scrollable. The reason: I have too many tabItems, and the wrapping is not the best solution in my case. so I want to change it from : To something like that (Scroll bar indicated by the arrow) : Can anyone help me and show how to do that ? (I'm using wpf) 回答1: Changing TabControl.Template to something simple like this seems to work for me <TabControl ...> <TabControl.Template> <ControlTemplate TargetType="{x:Type

问题 I have implemented a custom Layout that extends RelativeLayout. It displays lots of different elements that are created at run-time and is scrollable in both dimensions using scrollTo() and scrollBy(). Scrolling works and now I'd like to add the standard Android scrollbars. Using Scrollviews ist not possible, since I need the Layout to be scrollable in 2 dimensions, so I tried to do it as described here: Android: Enable Scrollbars on Canvas-Based View I have implemented all the compute*

问题 I'm having an issue with the overflow-y property in Chrome. Even though I've set it to hidden , I can still scroll the page with the mouse wheel. Here is my code: html, body { overflow-y: hidden; } #content { position: absolute; width: 100%; } .step { position: relative; height: 500px; margin-bottom: 500px; } <body> <div id="content"> <div class="step">this is the 1st step</div> <div class="step">this is the 2nd step</div> <div class="step">this is the 3rd step</div> </div> </body> Does