selection

问题 I'm having trouble getting a selector to work properly. I have this HTML: <div.wrapper> <div.ui-controlgroup-controls> <form> <div.ui-btn></div> </form> <div.ui-btn></div> <div.ui-btn></div> <div.ui-btn></div> <div.ui-btn></div> </div> </div> and I'm trying to select the div tags, which are children of ui-controlgroup-controls - which means excluding whats inside the form. This is what I'm trying: // el is my div.wrapper element el.children[0].getElementsByTagName("div"); However this does

问题 I have a QTableView that I need to get the selectionChanged event from. I can't seem to get the connect working. I have: MyWidget.h ... protected slots: void slotLoadTransaction(const QItemSelection & selected, const QItemSelection & deselected); private: QTableView table; ... MyWidget.cpp ... connect( table->selectionModel(), SIGNAL(selectionChanged(const QItemSelection & selected, const QItemSelection & deselected)), this, SLOT(slotLoadTransaction(const QItemSelection & selected, const

问题 I've been getting used to Vim/MacVim for the last few weeks. One of main problems I seem to be having is when I scroll around using the mouse (especially when I'm trying to select large portions of text) the text insertion cursor moves too and doesn't stay where it was (like in TextMate for example). This means I've selected a large piece of text, when I scroll back up to review my selection the cursor will move which messes with the selection that I've made. I do realise I should get used to

问题 I would like to implement rotation of selected items. I have noticed that there are 2 functions - rotate() which performs an immediate action but does not save the rotation on the item - and setRotation(), which stores rotation() (though it requires a repaint causing event). If I select a single item and rotate it, I can set selectedItem->setRotation(selectedItem->rotation() + deg); This allows the item to store its rotation, and when I need to copy it to another scene, the item retains its

问题 WHAT AM I TRYING TO ACHIEVE I have a html select box. The select box is responsible for selecting the preferred languages. for instance if a page is displayed in Germany then the select box should display Germany as its preference and likewise for the other languages. WHAT HAVE BEEN DONE SO FAR In application.html.erb I have below code #application.html.erb <select name="language" onChange="location = this.options[this.selectedIndex].value;"> <% @langs.each_pair do |short, long| %> <option

问题 How would one go about detecting what has been selected on a page in a browser? Example: Click, hold, select 3 words and 1 image on a page, release. Sub-question: How to detect what letter someone clicked on? Without using: A span injector breaking everything up OR a WYSIWYG plugin I'm hoping this isn't just a type of browser interaction you can't detect. There could be many uses, but my goal is a simple 'live' page editor, or at least a way to know what someone is clicking on/selecting aside

问题 I have a bound DataGrid and various other controls(external to the datagrid) that show more details about the selectedrow in the datagrid. This is easy to do with databinding or handling the SelectionChanged event on the datagrid. However, how do I do this without requiring the user to select a row - eg on 'mouseover' can I change the selected item or get the row/item 'under' the mouse. 回答1: Try something like this in your container class like UserControl, Grid, StackPanel, etc... public

问题 How would I, using Python "catch" text that a user has selecting in, for example, a web browser? The script would idle in the background, and when a certain key combination is pressed, it "gets" the text the user has selected. Think copy & paste, only it copies to my application instead of a clipboard. Thanks! I'd like to point out that this will be for Mac. 回答1: Install xsel sudo apt-get install xclip xsel -y Save this as get-selected.py import os print(os.popen('xsel').read()) Select text

问题 the normal behaviour of native text fields in many environments is as follows: Textfield with text "abcdefg". I use the mouse to select "efg" from left to right. The caret is now behind "g". When I move the caret to the left by pressing the cursor left key once, the selection is removed and the caret is right before "e". When I do the same in a JTextField or JTextArea (tested on Mac OS) doing the exact same thing results in the caret being right before "g". I know how I could change that

问题 I have a problem with primefaces datatable which implements filtering and sorting and select row(like complexe datatable in primefaces showcases), when i sort or filter in datatable, SelectedElement resolve to null if i select a row, but if i select row without filtering or sorting, select event work perfectly. Sorry for my bad english. My xhtml. <html xmlns="http://www.w3.org/1999/xhtml" xmlns:h="http://java.sun.com/jsf/html" xmlns:f="http://java.sun.com/jsf/core" xmlns:p="http://primefaces