onchange

问题 I am trying to get this form to dynamically populate the select box with the related Posts once the Owner has been selected in the previous dropdown. My entities are all ok however I can't see what I'm missing in the below files that is stopping the Ajax requests from firing: My Controller /** * @Route("/newUser", name="new_User") */ public function updatePostsAction(Request $request) { $User = new User(); $form = $this->createForm(new UserType(), $User); $form->handleRequest($request); if (

问题 I am trying to open a window based on an onChange event on a select element without getting blocked by Chrome's popup blocker. The problem is demonstrated here. https://jsfiddle.net/yyfe0824/1/ <select class="dropdown-select" onChange="window.open('https://www.google.com');"> <option value="uno">Uno</option> <option value="dos">Dos</option> <option value="tres">Tres</option> </select> <input type="button" onClick="window.open('https://www.google.com');" value="click me"> There is no problem

问题 I recently got into closures and anonymous functions, and I'm wondering if my code is the right way to do it (it works!): newInput.onchange = function(x){ return function(){ PassFileName(x); } }(counter); so this is in a loop that "saves" the current 'counter' value (1,2,3...). If I didn't have the return function, then 'counter' will always be the last value of 'counter'. Am I approaching this correctly with that code? or is there a better way to "capture" the current counter and attach it

问题 Hello everyone and sorry for my english. Following this jdfiddle, I have a problem I don't understand. First I change the value of the input, then I click on the button and what I expected to see is "click" but I see "change" meaning onclick is called after onchange . <input type="text" onChange="alert('change')" /> <button type="button" onClick="alert('click');">Click!</button> I found on this post that it's because of chrome which fires onchange event before the onclick event. But I don't

问题 This is a simple question. How do I change the "badge's price from $10 to $20" with select onChange? <span class="badge badge-primary">$10</span> <select> <option>$10 Item</option> <option>$20 Item</option> </select> Please provide the HTML and jQuery. P.S. I don't want to use an image for the badge's price. Thanks. 回答1: HTML: <span id="mybadge" class="badge badge-primary">$10</span> <select id="myselect"> <option value="$10">$10 Item</option> <option value="$20">$20 Item</option> </select>

问题 I have two multi select listboxes in a userform in VBA in Excel. One contains countries, the other contains cities. If the user clicks and selects/deselects a country, I would like my script to automatically select/deselect all of the cities located in that country in the second listbox. Equally, I would like that if the user clicks and selects/deselects a city, it automatically updates the first listbox to highlight only countries for which all of their corresponding cities are currently

问题 Can anyone see anything that is wrong with this code it just isn't working... Should be clear what I am trying to do jQuery(document).ready(function($) { $('#product-variants-option-0').change(function() { // What is the sku of the current variant selection. var select_value = $(this).find(':selected').val(); if (select_value == "Kelly Green") { var keyword = "kly"; }; var new_src = $('#preload img[src*="kly"]'); $('div.image').attr('src', new_src); }); }); The selection: <select class=

问题 In my project I want to create an invoice. In this invoice I calculate value with a function get subtotal(){} , totally work good. Now, If I change this subtotal, for example, I want to make a discount from 100 to 90. I've tried this code but it does not work. Please, can you suggest me how to solve this issue? Html code: <div class="input-field col s2" style="float: right;"> <input formControlName="Subtotal " id="Subtotal " [value]="subtotal " type="number" class="validate" (change)=

问题 Trying to test the following onChange event: JEST / ENZYME for React JS it(" Render method : test 1st onChange event :", () => { baseProps.onChange.mockClear(); wrapper.setState({ localState:{} }); wrapper.find('#individual-series').simulate('change',{target:{value:""}}) wrapper.update() wrapper.find('#individual-series').simulate('change', event) expect(wrapper.state().localState).toEqual('test'); expect(baseProps.addNewSeries).toHaveBeenCalled(); }); I saw this as an answer on StackOverflow

问题 I have a large list of results which I want to filter out with a checkbox. so for example when you click on cat 3 you should see all items with the class cat3 and if you click cat2 as well you should see all the items with both cat2 and cat3. In the below code which is located in this fiddle, I have the onchange working so if you click on cat3 it only shows the cat3 items however I can't get the multiple ticks working here, how can this be achieved? <form id="refine-cat"> <span><input type=