checkbox

问题 I've 7 checkboxes (A,B,C,D,E,F,G) and when I click one of them, the value is appended to a textarea. If I uncheck one, the value is removed from the textarea. The jquery code is as below: var checkboxes = $("input[type='checkbox']"); checkboxes.on('change', function() { $('#recipient').val( checkboxes.filter(':checked').map(function(item) { return this.value; }).get().join('; ') ); }); The html code is as below: <div class="col-sm-5"> <div class="form-group"> <label>Recipient</label>

问题 I feel rather stupid for not noticing this before but when I scroll up and down in my app, the checkboxes randomly check and uncheck. The checkboxes are on the GroupView and not the Child element of the Expandable ListView. I have done a lot of research into this and realise that the problem is recycling views and something to do with the onCheckedChangeListener. I also know (sort of) what I have to do to solve the problem. Thing is, I am not sure how to implement it. This is because all

问题 Let's say I have I have something along the lines of (in my aspx file): <input name="chk" id="cbox1" type="checkbox"> <input name="chk" id="cbox2" type="checkbox"> <input name="chk" id="cbox3" type="checkbox"> <input name="chk" id="cbox4" type="checkbox"> How would I be able to get the value of each element inside the .aspx.cs file? Can I call something like GetElementsByName in C#? 回答1: No, you can't, unless you will mark this controls as runat="server" . This is because in ASP.NET all

问题 I want to select and unselect all checkboxes when user clicks on the first checkbox (All) . And if user unchecks any checkbox, then only that checkbox and the first checkbox (All) should be unchecked and no change to the remaining checkboxes. I have a Checkboxlist in my page which I'm populating dynamically. <asp:CheckBoxList runat="server" ID="cbExtList" /> Code Behind private Extensions _extension = new Extensions(); private ExtCollection _extCollection = new ExtCollection(); _extCollection

问题 I'm initiating my first start-up. I can't stand attempting to read captchas when signing up for websites, don't want my users to. I looked for alternatives, and I found the checkbox captcha. How is this done, using JavaScript to load a checkbox, and validate it with the same code as would normally be used to make a sign up form? Thanks. 回答1: I looked at the example linked from the article you posted. At first glance, it seems like this can be easily bypassed. The checkbox captcha works on the

问题 I have the following snippet of code (I'm using jQuery 1.4.2): $.post('/Ads/GetAdStatsRow/', { 'ad_id': id }, function(result) { $('#edit_ads_form tbody').prepend(result); $(result).find('td.select-ad input').attr('checked','checked').click(); }); Assume that the post works correctly and returns a correct pre-built <tr> with some <td> s. Here's the weirdness: the $(result).find() line finds the correct input (which is a checkbox, as it's the only input in the cell) and runs the chained click(

问题 I'm quite new to AngularJS and had to takeover somebody else's project at work which has little to no documentation. I have 2 kinds of check-boxes in my application, one is a "Select All" checkbox and another is a device selection checkbox. As the name suggests, the select all will select all the devices listed below it and if I uncheck the "select all" checkbox, I can check the devices individually to see them. Here is the code of the Select all checkbox - <input type="checkbox" data-ng

问题 Need to disable an input when the check-box is unchecked, and when it is checked enable it. My code is like this: <div class="y"> <input type="checkbox" class="myCheck" /> <input type="select" name="x" class="mySelect" /> </div> <div class="y"> <input type="checkbox" class="myCheck" /> <input type="select" name="x" class="mySelect" /> </div> <div class="y"> <input type="checkbox" class="myCheck" /> <input type="select" name="x" class="mySelect" /> </div> But I want to disable and enable the

问题 CheckBoxFor is not bounded when a property is defined in an object nested in the model? Here is an example. I have a SearchOptions model that contains a List<Star> property. Each Star has a number, a name and a bool property that should be bounded: public class SearchOptions { public SearchOptions() { // Default values Stars = new List<Star>() { new Star() {Number=1, Name=Resources.Home.Index.Star1, IsSelected=false}, new Star() {Number=2, Name=Resources.Home.Index.Star2, IsSelected=false},

问题 I am now facing this problem: I want to style radio buttons and checkboxes that are generated by system and do not have a label . I am working with IBM SPSS Data Collection for making online surveys, so that means it generates all questions to page according to some template I can style (mostly styling with CSS). I found out many tutorials how to style radio buttons and checkboxes using pure CSS, problem is, all of them are using label: <label for="id"></label> . Point is, that generaged code