html-select | 易学教程

Simulate javascript to choose from dropdown

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问题 I am trying to simulate a javascript to choose from the dropdown list below. I am trying this code here but its not working. $('select[name="srctype"]').val(2).trigger('change'); Am i doing something wrong here? Is my javascript messed up for this layout of code below? I am trying to choose value="single" <select name="srctype" class="formselect" onchange="typesel_change()"> <option value="any" selected="selected">any</option> <option value="single">Single host or alias</option> <option value

how to set an ArrayList object in a dropdown through ajax

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问题 index.jsp <%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1" contentType="text/html; charset=UTF-8"%> <%@ taglib uri="/struts-tags" prefix="s" %> <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head>  <title>cascading dropdown</title> <script language="javascript" type="text/javascript" src="getDeptNameUsingId.js"><

make the <select> tag selected display HTML

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问题 I'm trying to make appear some HTML code if the selected option is the right one, is it possible? example: <select name="ref_rubrique"> <option value="1"> number 1 </option> <option value="2" selected> number 2 </option> </select> and <?php if( $selected==true ): ?> <p>hello<p> <?php else(): ?> <p><p> <?php endif(); ?> 回答1: When the form is submitted you can check $_REQUEST['ref_rubrique'] . You can then compare the value, e.g. 1 == $_REQUEST['ref_rubrique'] . Both "1" and "2" are truthy

how to write text with multiple colors in option tag

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问题 I have a drop down list in a form ( SELECT tag ). Its contents are city titles. But I would like to show their country titles as a comment beside them too. Is it possible to write texts between <option></option> tags with multiple colors? Sample code: <select name="cities"> <option value="1">London (England)</option> <option value="2">Sidney (Australia)</option> <option value="3">Amsterdam (Netherlands)</option> </select> Imagine that I would like city titles to be black and (country_name) to

I'm trying to build up options from an array data value using jsView

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问题 if you have an array of items, without properties, how do you access the value inside a for loop? I currently get the right number of options, but I haven't found the correct syntax to get the value of the option. there's a working jsfiddle at: http://jsfiddle.net/geewhizbang/Y44Gm/4/ var data = { items: [{ "title": "First Drop Down", "hist": "Secondary", "dec": "Priority", "options": ["Priority", "Secondary"], "type": "select" }, { "title": "Second Drop Down", "hist": "Competitive Widget",

How to avoid ligatures within option-tag?

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问题 I'd like to create a visually appealing select-dialog that shows FontAwesome-Icons and a word describing the symbol to select from various scales for statistical data. So I'm using the FontAwesome-Fonts for the select -tag and the unicode-glyphs for the various symbols. That first part works nicely. But the words I am using are also used in FonAwesome to form ligatures that can also be used to get the icons (I thought this was limited to the desktop-version, but as my example prooves, it also

Selected Entry in a Drop Down Select HTML Form Element

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问题 This drop down list, displaying all the files from a folder, one of which will be selected for use. Is there a way to show which file is selected when you load the page? At the moment it says "select a file" every time. <select name="image" type="text" class="box" id="image" value="<?=$image;?>"> <option value='empty'>Select a file</option> <?php $dirname = "images/"; $images = scandir($dirname); // This is how you sort an array, see http://php.net/sort natsort($images); // There's no need to

How to remove a selected attribute from option A and then re-apply to option B on change?

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问题 Desired Behaviour Remove existing selected attribute from Option A (if it exists) and apply selected attribute to Option B. Current Behaviour Current attempt works on first change, but on subsequent changes continues adding the selected attribute to the selected options so that there is more than one option with a selected attribute. Constraints HTML structure and selector defined below, ie .my_div , are required. jsFiddle http://jsfiddle.net/rwone/e7teL39u/ HTML <div class="my_div"> <select>

Removing a option from DropDownList item with jQuery

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问题 I have a situation where in some cases a dropdownlist can contain a default value that is not selectable, once another value is changed, the default value should no longer be an option. From what I can tell, this concept does not exist natively, so I am trying to code it up with jQuery. All the DropDownLists which have this condition have a class 'valueSkippedHyperSwap' assigned to them. the value that needs to be removed is the caret '^'. Here is what I have, which is not working: $('

Why is last select option always shown, even when styled out

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问题 While answering another question I came across this weird bug. A quick search has not found an existing question, so here goes: JSFiddle: http://jsfiddle.net/TrueBlueAussie/93D3h/4/ <select> <option>Item1</option> <option>Item2</option> <option>Item3</option> <option class="hidden">Item4</option> <option class="hidden">Item5</option> </select> CSS: .hidden { display: none; } Q: Why is Item5 always shown, even though it is styled as hidden? Item4 is not visible. Note: I am testing this in the