onchange

问题 Using jQuery 1.7.1, I'm trying to create an event handler for the change event on a dropdown. The dropdown is dynamically added to the DOM. Seems to work nicely on most browsers, but oh that kooky IE8 wants to be difficult. Is there a workaround? Should this work? I'm doing a lot of reading here and elsewhere and the input seems to be conflicting in many cases and the proposed solutions that I've found/tried haven't worked for me. Can anyone clarify whether this should work in IE8 for .state

问题 Testing part of a form. So, right now I just want to alert what the user selects: JS: function getData(title) { alert(title); } HTML generated by PHP: <select name="currentList" onChange="getData(this);"> <option value="hat">Hat</option> <option value="shirt">Shirt</option> <option value="pants">Pants</option> </select> when I change the value I get an alert with: [object HTMLSelectElement] 回答1: try alert(this.value) 回答2: With this you're passing the HTML select element to the function, not

问题 i'm working on a code playground using ace editor and i am trying to use ace editor onChange but nothing happens when I type. my code is <style> html{padding:0px} #editor { border-radius:5px; width:500px; height:100% }</style> <a href="#" onclick="update()">go</a> <div id="editor" onChange="update()"> function foo(items) { var x = "All this is syntax highlighted"; return x; } </div> <script src="http://d1n0x3qji82z53.cloudfront.net/src-min-noconflict/ace.js" type="text/javascript" charset=

问题 Having a problem with the change() event in jQuery: $("select[name=cmm]").change(function(){ total(); }); For some reason the "total" function isn't being called with the code above. The html code is: <select name="cmm"> <option value="none">none</option> <option value="one">the first</option> <option value="two">the second</option> </select> Am i referring to the element the wrong way or something? Or calling the function the wrong way? Update: The alert function here doesn't show up, so I'm

问题 In my angular value i have a select for changing timezone. this.userTimeZone is an object in my component. { AdjustmentRules:null BaseUtcOffset:"-04:30:00" DaylightName:"Venezuela Daylight Time" DisplayName:"(UTC-04:30) Caracas" Id:"Venezuela Standard Time" StandardName:"Venezuela Standard Time" SupportsDaylightSavingTime:false} My select option looks like this: <select name="timeZones" [(ngModel)]="userTimeZone" (change)="setTimezoneId($event)" class="form-control"> <option *ngFor="let time

问题 I know that I should use its alternative "onclick" for "checkboxes", to overcome this problem in "Safari" and "Chrome". But what should I do if I want to use an "onchange" event for a "fieldset" (a group of checkboxes)? 回答1: It seems that assigning "onchange" event after page load using "javascript" , works! Here is an example: <script type="text/javascript"> window.onload = function() { var fieldsets = document.getElementsByTagName("fieldset"); for( i = 0 ; i < fieldsets.length ; i++ ) {

问题 How to use the OnChange event to display the result on the Label1 instantly after value have enter in Textbox1 and Textbox2?? <div> <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox> <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox> <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label> </div> --------------------------------------------------------------------------------------- //Code behind int num1; if(!Int32.TryParse(TextBox1.Text, out num1)) { Label1.Text = "Not a

问题 I have a page with the following two divs: <div id="searchResults"> </div> <div class="postSearchOptions" style="display: none;"> </div> Is there any way that I can make the "postSearchOptions" div appear when the "searchResults" div is updated by an AJAX call? I don't control the AJAX calls and I want to detect any change in the "searchResults" div. I tried writing the following JQuery code, but then realized that it requires Jquery 1.4 and I only have 1.3: $("#searchResults").live("change",

问题 I had a previous question that touched this topic (Rails: how to get value from another field when executing an onchange remote function in textfield), but then I dugg a little deeper and realized that my problem is the datetime_select method. I have a textfield with onchange. In the onchange I need to get the value of a datetime_select field to pass as a parameter when making the ajax call to my controller. The first thing to note is that a datetime_select is actually composed of five

问题 $(document).ready(function() { $('#text').live('change', function() { alert('hello'); }); $('#button').live('click', function() { $('#text').val('some text'); }); }); <div> <input type="button" id="button" value="Click Me" /> <input type="text" id="text" /> </div> How can I make the change function on the textbox trigger when I click the button? Thanks 回答1: You can use .change() (the shortcut) or .trigger(), like this: $('#button').live('click', function() { $('#text').val('some text').change