jQuery 如何使用jQuery处理复选框的更改？
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How to handle change of checkbox using jQuery?
提问by BILL
I have some code
我有一些代码
<input type="checkbox" id="chk" value="value" />
<label for="chk">Value </label>
<br/>
<input type="button" id="But1" value="set value" />
<br />
<input type="button" id="But2" value="read checked" />
javascript:
javascript:
$(document).ready(function () {
console.log("Ready ...");
registerHandlers();
function registerHandlers() {
$('#But1').click(function () {
$('#chk').prop('checked', !$('#chk').is(':checked'));
});
$('#But2').click(function () {
var chk1 = $('#chk').is(':checked');
console.log("Value : " + chk1);
});
$('input[type="checkbox"]').change(function () {
var name = $(this).val();
var check = $(this).prop('checked');
console.log("Change: " + name + " to " + check);
});
}
});
How to handle change of checkbox using jQuery ? I need to put the handler to change any checkboxes checked.
如何使用 jQuery 处理复选框的更改？我需要让处理程序更改选中的任何复选框。
[update]
[更新]
There is a checkbox and a few buttons. Each button can change check box. How to catch an event changing the checkbox?
有一个复选框和几个按钮。每个按钮都可以更改复选框。如何捕获更改复选框的事件？
[Update]
[更新]
I need handle change checkbox in this example jsfiddle. When I click on the box the message "OK" button is not shown.
在此示例jsfiddle 中，我需要处理更改复选框。当我单击该框时，未显示消息“确定”按钮。
回答by Samich
Use :checkboxselector:
使用:checkbox选择器：
$(':checkbox').change(function() {
// do stuff here. It will fire on any checkbox change
});
回答by Pinkesh Sharma
You can use Id of the field as well
您也可以使用字段的 ID
$('#checkbox1').change(function() {
if($(this).is(":checked")) {
//'checked' event code
return;
}
//'unchecked' event code
});
回答by Lokesh Yadav
Hope, this would be of some help.
希望，这会有所帮助。
$('input[type=checkbox]').change(function () {
if ($(this).prop("checked")) {
//do the stuff that you would do when 'checked'
return;
}
//Here do the stuff you want to do when 'unchecked'
});
回答by Arjun
$("input[type=checkbox]").on("change", function() {
if (this.checked) {
//do your stuff
}
});
回答by Everton Z. P.
$('#myForm').on('change', 'input[type=checkbox]', function() {
this.checked ? this.value = 'apple' : this.value = 'pineapple';
});
回答by laurent belloeil
It seems to me removeProp is not working properly in Chrome : jsfiddle
在我看来 removeProp 在 Chrome 中无法正常工作： jsfiddle
$('#badBut1').click(function () {
checkit('Before');
if( $('#chk').prop('checked') )
{
$('#chk').removeProp('checked');
}else{
$('#chk').prop('checked', true);
}
checkit('After');
});
$('#But1').click(function () {
checkit('Before');
if( $('#chk').prop('checked') )
{
$('#chk').removeClass('checked').prop('checked',false);
}else{
$('#chk').addClass('checked').prop('checked', true);
}
checkit('After');
});
$('#But2').click(function () {
var chk1 = $('#chk').is(':checked');
console.log("Value : " + chk1);
});
$('#chk').on( 'change',function () {
checkit('Result');
});
function checkit(moment) {
var chk1 = $('#chk').is(':checked');
console.log(moment+", value = " + chk1);
};
回答by Siva Anand
get radio value by name
按名称获取无线电值
$('input').on('className', function(event){
console.log($(this).attr('name'));
if($(this).attr('name') == "worker")
{
resetAll();
}
});
