我正在尝试使用jQuery锁定复选框更改事件,目前我有这个:
<script type="text/javascript">
$(document).ready(function () {
$('.timepicker').datetimepicker({ datepicker: false, format: 'H:i' });
$('.mondaystartfinish').hide();
//subscribe to change events
$('#IsMonday').change(function () {
RunsOnMondays();
});
});
function RunsOnMondays() {
if ($('#IsMonday').prop('checked') == 'true') {
$('.mondaystartfinish').slideDown();
} else {
$('.mondaystartfinish').slideUp();
}
}
</script>
但是在调试时,当我选中/取消选中该框时,RunsOnMondays()
方法没有触发。
我也尝试过使用它但仍然无效:
$('IsMonday').prop('checked').change(function () { RunsOnMondays();});
浏览器输出
<div class="form-group">
<label class="control-label col-md-2" for="IsMonday">Monday</label>
<div class="col-md-10">
<input class="check-box" data-val="true" data-val-required="The IsMonday field is required." id="IsMonday" name="IsMonday" type="checkbox" value="true" /><input name="IsMonday" type="hidden" value="false" />
<span class="field-validation-valid" data-valmsg-for="IsMonday" data-valmsg-replace="true"></span>
</div>
</div>
<div class="startfinish">
<div class="form-group">
<div class="mondaystartfinish">
<label class="control-label col-md-2" for="MondayFrom">Monday Start</label>
<div class="col-md-10">
<input class="timepicker" data-val="true" data-val-date="The field MondayFrom must be a date." id="MondayFrom" name="MondayFrom" type="text" value="" />
<span class="field-validation-valid" data-valmsg-for="MondayFrom" data-valmsg-replace="true"></span>
</div>
</div>
</div>
</div>
<div class="startfinish">
<div class="form-group">
<div class="mondaystartfinish">
<label class="control-label col-md-2" for="MondayTo">Monday Finish</label>
<div class="col-md-10">
<input class="timepicker" data-val="true" data-val-date="The field MondayTo must be a date." id="MondayTo" name="MondayTo" type="text" value="" />
<span class="field-validation-valid" data-valmsg-for="MondayTo" data-valmsg-replace="true"></span>
</div>
</div>
</div>
</div>
答案 0 :(得分:6)
它不起作用的原因是这不是真的 true == 'true'
实际上是false
:http://jsfiddle.net/TrueBlueAussie/2wwz1ore/6/
prop('checked')
返回一个布尔值!无需== 'true'
。
http://jsfiddle.net/TrueBlueAussie/2wwz1ore/1/
$(document).ready(function () {
//$('.timepicker').datetimepicker({ datepicker: false, format: 'H:i' });
$('.mondaystartfinish').hide();
// subscribe to change events
$('#IsMonday').change(function () {
RunsOnMondays();
});
});
function RunsOnMondays() {
if ($('#IsMonday').prop('checked')) {
$('.mondaystartfinish').slideDown();
} else {
$('.mondaystartfinish').slideUp();
}
}
更好的是,使用slideToggle()
:http://jsfiddle.net/TrueBlueAussie/2wwz1ore/3/
// subscribe to change events
$('#IsMonday').change(function () {
$('.mondaystartfinish').slideToggle($(this).prop('checked'));
});
如果(并且我非常怀疑)你的元素是动态添加的,请使用附加到非更改祖先元素的委托事件处理程序(document
是默认值,如果没有其他更接近/方便的话)
e.g。
$(document).on('click' , '#IsMonday', function () {
$('.mondaystartfinish').slideToggle($(this).prop('checked'));
});
答案 1 :(得分:2)
您可以按如下方式使用以下内容:
$('#IsMonday').change(function(){
RunsOnMondays(this.checked);
});
function RunsOnMondays(isChecked) {
if (isChecked) {
$('.mondaystartfinish').slideDown();
} else {
$('.mondaystartfinish').slideUp();
}
}
<强> jsFiddle 强>