在 bootstrap 日期时间选择器上预设 date/time

Question

Fiddle: https://jsfiddle.net/ek9c9ojx/3/

我尝试了这个问题的许多解决方案：set default time in bootstrap-datetimepicker

但其中 none 有效。它们都会导致输入为空并默认为占位符文本。

我尝试了 setDate()、setLocalDate() 和 defaultDate 路线，但我在当前文档中找不到任何支持这些路线的内容，也找不到任何可以实现这一简单的当前方法任务。

None 这些作品：

var dateObj = new Date('2016-03-21T23:31:00');
// does not work, causes empty input/placeholder text
$("#startdatetime-from").data('datetimepicker').setDate(dateObj);
// does not work, causes empty input/placeholder text
$("#startdatetime-from").data('datetimepicker').setLocalDate(dateObj);


var dateObj = new Date('2016-03-21T23:31:00');
$('#new-challenge-date-time-picker').datetimepicker({
    minDate: moment(),
    defaultDate: dateObj // does not work, same symptoms as above
});

我也尝试设置 #new-challenge-date-time-picker 本身的 value 属性，但这也不起作用。

有人知道答案吗？

Answer 1

您可以在初始化选择器时将日期传递给 "defaultDate"。但是 minDate 将覆盖 defaultDate。因此，如果您还需要 minDate，则将 useCurrent 设置为 false

https://eonasdan.github.io/bootstrap-datetimepicker/Options/#mindate

https://eonasdan.github.io/bootstrap-datetimepicker/Options/#usecurrent

试试下面的方法

   $(function() {

  var datePreset = $('#new-challenge-date-time-picker').attr('data-preset');
  var dateParts = datePreset.split(' ');
  var dateString = dateParts[0];
  var dateTime = dateParts[1];
  var dateTimeParts = dateTime.split(':');
  var dateHour = dateTimeParts[0];
  var dateMinutes = dateTimeParts[1];
  var dateAMPM = dateParts[2];
  var dateStringParts = dateString.split('/');
  var dateMonth = dateStringParts[0];
  var dateDay = dateStringParts[1];
  var dateYear = dateStringParts[2];

  var time = (dateAMPM == 'PM') ? (parseInt(dateHour) + 12) + ':' + dateMinutes : dateHour + ':' + dateMinutes;
  time += ':00';

  console.log(dateYear + '-' + dateMonth + '-' + dateDay + 'T' + time);
  var dateObj = new Date(dateYear + '-' + dateMonth + '-' + dateDay + 'T' + time);

  $('#new-challenge-date-time-picker').datetimepicker({
    minDate: moment(),
    defaultDate: dateObj,
     useCurrent:false
  });

  // $("#new-challenge-date-time-picker").data('datetimepicker').setDate(dateObj);


});

Answer 2

您可以使用 defaultDate 选项初始化日期。如果您想使用 data-* 属性来初始化组件，您可以使用以下代码：

var datePreset = $('#new-challenge-date-time-picker input').attr('data-preset');
var dateFormat = $('#new-challenge-date-time-picker input').attr('data-format');

$('#new-challenge-date-time-picker').datetimepicker({
    minDate: moment(),
    defaultDate: moment(datePreset, dateFormat)
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.9.0/moment-with-locales.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<script src="https://cdn.rawgit.com/Eonasdan/bootstrap-datetimepicker/d004434a5ff76e7b97c8b07c01f34ca69e635d97/src/js/bootstrap-datetimepicker.js"></script>

<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet">
<link href="https://cdn.rawgit.com/Eonasdan/bootstrap-datetimepicker/d004434a5ff76e7b97c8b07c01f34ca69e635d97/build/css/bootstrap-datetimepicker.css" rel="stylesheet">

<div class="row">
    <div class="col-md-12">
        <div class="form-group">
            <div class="input-group date" id="new-challenge-date-time-picker">
              <input type='text' class="form-control" data-format="MM/DD/YYYY HH:mm:ss A" data-preset="03/21/2016 11:31:00 PM"/>
                <span class="input-group-addon">
                    <span class="glyphicon-calendar glyphicon"></span>
                </span>
            </div>
        </div>
    </div>
</div>

注意格式必须跟在时刻parsing rules之后。由于这个未解决的错误，我删除了占位符：Default date not working.

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