问题
I am working with the bootstrap datepicker from this source: http://eonasdan.github.io/bootstrap-datetimepicker/
I have already a datepicker almost as I want to to be, an inline picker from which I need to detect changes (live). It looks like this:
It is generated with this Code:
<div class="row">
<div class="col-md-6">
<div id="start_datepicker"></div>
</div>
<div class="col-md-6">
<div id="start_timepicker"></div>
</div>
</div>
and the Javascript which calls it:
$('#start_datepicker').datetimepicker(
{
format: "D-M-Y",
locale: "de",
inline: true,
calendarWeeks: true
});
$('#start_timepicker').datetimepicker(
{
format: "HHmm",
stepping: 15,
locale: "de",
inline: true
});
This works fine and generates some code which looks like this:
<div id="start_datepicker" style="">
<div class="bootstrap-datetimepicker-widget usetwentyfour" style="display: block;">
<ul class="list-unstyled">
<li>
<div class="datepicker">
<div class="datepicker-days" style="display: block;">
<table class="table-condensed">
<thead>
<tr>
<th class="prev" data-action="previous"><span class="glyphicon glyphicon-chevron-left" title=
"Previous Month"></span></th>
<th class="picker-switch" colspan="6" data-action="pickerSwitch" title="Select Month">Mai 2016</th>
<th class="next" data-action="next"><span class="glyphicon glyphicon-chevron-right" title="Next Month"></span></th>
</tr>
<tr>
<th class="cw">#</th>
<th class="dow">Mo</th>
<th class="dow">Di</th>
<th class="dow">Mi</th>
<th class="dow">Do</th>
<th class="dow">Fr</th>
<th class="dow">Sa</th>
<th class="dow">So</th>
</tr>
</thead>
<tbody>
<tr>
<td class="cw">17</td>
<td class="day old" data-action="selectDay" data-day="25.04.2016">25</td>
<td class="day old" data-action="selectDay" data-day="26.04.2016">26</td>
<td class="day old" data-action="selectDay" data-day="27.04.2016">27</td>
<td class="day old" data-action="selectDay" data-day="28.04.2016">28</td>
<td class="day old" data-action="selectDay" data-day="29.04.2016">29</td>
<td class="day old weekend" data-action="selectDay" data-day="30.04.2016">30</td>
<td class="day weekend" data-action="selectDay" data-day="01.05.2016">1</td>
</tr>
<tr>
<td class="cw">18</td>
<td class="day" data-action="selectDay" data-day="02.05.2016">2</td>
<td class="day" data-action="selectDay" data-day="03.05.2016">3</td>
<td class="day" data-action="selectDay" data-day="04.05.2016">4</td>
<td class="day" data-action="selectDay" data-day="05.05.2016">5</td>
<td class="day" data-action="selectDay" data-day="06.05.2016">6</td>
<td class="day weekend" data-action="selectDay" data-day="07.05.2016">7</td>
<td class="day weekend" data-action="selectDay" data-day="08.05.2016">8</td>
</tr>
<tr>
<td class="cw">19</td>
<td class="day" data-action="selectDay" data-day="09.05.2016">9</td>
<td class="day active today" data-action="selectDay" data-day="10.05.2016">10</td>
<td class="day" data-action="selectDay" data-day="11.05.2016">11</td>
<td class="day" data-action="selectDay" data-day="12.05.2016">12</td>
<td class="day" data-action="selectDay" data-day="13.05.2016">13</td>
<td class="day weekend" data-action="selectDay" data-day="14.05.2016">14</td>
<td class="day weekend" data-action="selectDay" data-day="15.05.2016">15</td>
</tr>
<tr>
<td class="cw">20</td>
<td class="day" data-action="selectDay" data-day="16.05.2016">16</td>
<td class="day" data-action="selectDay" data-day="17.05.2016">17</td>
<td class="day" data-action="selectDay" data-day="18.05.2016">18</td>
<td class="day" data-action="selectDay" data-day="19.05.2016">19</td>
<td class="day" data-action="selectDay" data-day="20.05.2016">20</td>
<td class="day weekend" data-action="selectDay" data-day="21.05.2016">21</td>
<td class="day weekend" data-action="selectDay" data-day="22.05.2016">22</td>
</tr>
<tr>
<td class="cw">21</td>
<td class="day" data-action="selectDay" data-day="23.05.2016">23</td>
<td class="day" data-action="selectDay" data-day="24.05.2016">24</td>
<td class="day" data-action="selectDay" data-day="25.05.2016">25</td>
<td class="day" data-action="selectDay" data-day="26.05.2016">26</td>
<td class="day" data-action="selectDay" data-day="27.05.2016">27</td>
<td class="day weekend" data-action="selectDay" data-day="28.05.2016">28</td>
<td class="day weekend" data-action="selectDay" data-day="29.05.2016">29</td>
</tr>
<tr>
<td class="cw">22</td>
<td class="day" data-action="selectDay" data-day="30.05.2016">30</td>
<td class="day" data-action="selectDay" data-day="31.05.2016">31</td>
<td class="day new" data-action="selectDay" data-day="01.06.2016">1</td>
<td class="day new" data-action="selectDay" data-day="02.06.2016">2</td>
<td class="day new" data-action="selectDay" data-day="03.06.2016">3</td>
<td class="day new weekend" data-action="selectDay" data-day="04.06.2016">4</td>
<td class="day new weekend" data-action="selectDay" data-day="05.06.2016">5</td>
</tr>
</tbody>
</table>
</div>
<div class="datepicker-months" style="display: none;">
<table class="table-condensed">
<thead>
<tr>
<th class="prev" data-action="previous"><span class="glyphicon glyphicon-chevron-left" title=
"Previous Year"></span></th>
<th class="picker-switch" colspan="6" data-action="pickerSwitch" title="Select Year">2016</th>
<th class="next" data-action="next"><span class="glyphicon glyphicon-chevron-right" title="Next Year"></span></th>
</tr>
</thead>
<tbody>
<tr>
<td colspan="8"><span class="month" data-action="selectMonth">Jan.</span><span class="month" data-action=
"selectMonth">Febr.</span><span class="month" data-action="selectMonth">Mrz.</span><span class="month" data-action=
"selectMonth">Apr.</span><span class="month active" data-action="selectMonth">Mai</span><span class="month"
data-action="selectMonth">Jun.</span><span class="month" data-action="selectMonth">Jul.</span><span class="month"
data-action="selectMonth">Aug.</span><span class="month" data-action="selectMonth">Sept.</span><span class="month"
data-action="selectMonth">Okt.</span><span class="month" data-action="selectMonth">Nov.</span><span class="month"
data-action="selectMonth">Dez.</span></td>
</tr>
</tbody>
</table>
</div>
<div class="datepicker-years" style="display: none;">
<table class="table-condensed">
<thead>
<tr>
<th class="prev" data-action="previous"><span class="glyphicon glyphicon-chevron-left" title="Next Decade"></span></th>
<th class="picker-switch" colspan="6" data-action="pickerSwitch" title="Select Decade">2011-2022</th>
<th class="next" data-action="next"><span class="glyphicon glyphicon-chevron-right" title=
"Previous Decade"></span></th>
</tr>
</thead>
<tbody>
<tr>
<td colspan="8"><span class="year" data-action="selectYear">2011</span><span class="year" data-action=
"selectYear">2012</span><span class="year" data-action="selectYear">2013</span><span class="year" data-action=
"selectYear">2014</span><span class="year" data-action="selectYear">2015</span><span class="year active" data-action=
"selectYear">2016</span><span class="year" data-action="selectYear">2017</span><span class="year" data-action=
"selectYear">2018</span><span class="year" data-action="selectYear">2019</span><span class="year" data-action=
"selectYear">2020</span><span class="year" data-action="selectYear">2021</span><span class="year" data-action=
"selectYear">2022</span></td>
</tr>
</tbody>
</table>
</div>
<div class="datepicker-decades" style="display: none;">
<table class="table-condensed">
<thead>
<tr>
<th class="prev" data-action="previous"><span class="glyphicon glyphicon-chevron-left" title=
"Previous Century"></span></th>
<th class="picker-switch" colspan="6" data-action="pickerSwitch">1999-2099</th>
<th class="next" data-action="next"><span class="glyphicon glyphicon-chevron-right" title="Next Century"></span></th>
</tr>
</thead>
<tbody>
<tr>
<td colspan="8"><span class="decade" data-action="selectDecade" data-selection="2005">2000 - 2011</span><span class=
"decade" data-action="selectDecade" data-selection="2017">2012 - 2023</span><span class="decade" data-action=
"selectDecade" data-selection="2029">2024 - 2035</span><span class="decade" data-action="selectDecade" data-selection=
"2041">2036 - 2047</span><span class="decade" data-action="selectDecade" data-selection="2053">2048 -
2059</span><span class="decade" data-action="selectDecade" data-selection="2065">2060 - 2071</span><span class="decade"
data-action="selectDecade" data-selection="2077">2072 - 2083</span><span class="decade" data-action="selectDecade"
data-selection="2089">2084 - 2095</span><span class="decade" data-action="selectDecade" data-selection="2101">2096 -
2107</span><span></span><span></span><span></span></td>
</tr>
</tbody>
</table>
</div>
</div>
</li>
<li class="picker-switch accordion-toggle">
<table class="table-condensed">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</li>
</ul>
</div>
</div>
The dark blue line highlights the current td element, which has the class active. On each change (there is always only one td element with this class) I want to update another element and set it to the value of the attribute data-day from the currently active element (WITHOUT having to check it periodically).
I already have a small snippet which works, but only once and not entirely correct. If I change it once it gets the value of the initial active td and for any further changes the value remains the same (of the element which displays it, a span with id: start_date).
This code is supposed ti achieve the desiered behaviour:
$('#start_datepicker').find("td").click(function()
{
$("#start_date").text($('#start_datepicker').find(".active").attr("data-day"));
});
I think the error must be within the 3 lines above.
If I need to add any more information to clearify my question please tell me.
Thanks in advance John
回答1:
The documentation asks to listen to dp.change. This should work:
$("#start_datepicker").on("dp.change", function (e) {
$("#start_date").text(e.date);
});
回答2:
Maybe the calender dom is replaced on the fly, so your click event is gettin lost. Try this:
$('#start_datepicker').on('click', 'td', function()
{
$("#start_date").text($('#start_datepicker').find(".active").attr("data-day"));
});
(see http://api.jquery.com/on/)
回答3:
You can use "change" event in the input that is added instead of find the td element:
$('#start_datepicker').find('input').change(function(){
$("#start_date").text($(this).val());
});
来源：https://stackoverflow.com/questions/37139794/jquery-click-funtion-executes-only-once