如何显示31-03年的结束日期(取决于开始日期)?

时间:2019-01-19 09:08:38

标签: php jquery jquery-ui datepicker

我有两个日期选择器。在第一个日期选择器中是开始日期,在第二个日期选择器中是结束日期。

我的年份范围是

2018-2019 (Last date is 31-03-2019)
2019-2020 (My start date is 01-04-2019 and the end date is 31-03-2020)
2020-2021 (My start date is 01-04-2020 and the end date is 31-03-2021)
   //and so on

现在根据当前年份,我们处于2018-2019年的范围内。

所以我的结束日期是2019年3月31日。

如何显示31-03年的结束日期(取决于开始日期)?

我需要一些jquery或PHP来处理吗?

$(function() {
  var year = (new Date).getFullYear();

  $(".start_date").datepicker({
    showOn: "button",
    buttonImage: "http://jqueryui.com/resources/demos/datepicker/images/calendar.gif",
    buttonImageOnly: true,
    buttonText: "Select date",
    dateFormat: "dd-mm-yy",
    changeMonth: true,
    changeYear: true,
    minDate: 0,
    //maxDate    :  "+1Y",
    maxDate: new Date(year, 03, 31),
    // maxDate: "+3m"
    showAnim: "clip",
    numberOfMonths: 1
  });
  $(".end_date").datepicker({
    showOn: "button",
    buttonImage: "http://jqueryui.com/resources/demos/datepicker/images/calendar.gif",
    buttonImageOnly: true,
    buttonText: "Select date",
    dateFormat: "dd-mm-yy",
    changeMonth: true,
    changeYear: true,
    minDate: 0,
    //maxDate    :  "+1Y",
    maxDate: new Date(year, 03, 31),
    showAnim: "clip"
    //numberOfMonths: 2
  });

});
<link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">

<div class="form-group">
  <label>Start Date</label>
  <input type="text" name="start_date" placeholder="Start Date" id="start_date" class="start_date form-control">
</div>
<div class="form-group">
  <label>End Date</label>
  <input type="text" name="end_date" id="end_date" placeholder="End Date" class="end_date form-control">
</div>
<script src="https://ajax.aspnetcdn.com/ajax/jQuery/jquery-3.3.1.min.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>

您能帮我吗?

1 个答案:

答案 0 :(得分:0)

您可以使用onSelect选项在maxDate日期选择器中设置.end_date

$(function() {
  var year = (new Date).getFullYear();

  $(".start_date").datepicker({
    showOn: "button",
    buttonImage: "http://jqueryui.com/resources/demos/datepicker/images/calendar.gif",
    buttonImageOnly: true,
    buttonText: "Select date",
    dateFormat: "dd-mm-yy",
    changeMonth: true,
    changeYear: true,
    minDate: 0,
    //maxDate    :  "+1Y",
    maxDate: new Date(year, 03, 31),
    // maxDate: "+3m"
    showAnim: "clip",
    numberOfMonths: 1,
    onSelect: function(dt, dp) {
      var selected = $.datepicker.parseDate("dd-mm-yy", dt);
      var yy = selected.getFullYear();
      var mm = selected.getMonth();
      var dd = selected.getDate()
      var nextYear = $.datepicker.parseDate("dd-mm-yy", "31-03-" + (yy + 1));
      $(".end_date").datepicker("option", "maxDate", nextYear);
    }
  });
  $(".end_date").datepicker({
    showOn: "button",
    buttonImage: "http://jqueryui.com/resources/demos/datepicker/images/calendar.gif",
    buttonImageOnly: true,
    buttonText: "Select date",
    dateFormat: "dd-mm-yy",
    changeMonth: true,
    changeYear: true,
    minDate: 0,
    //maxDate    :  "+1Y",
    maxDate: new Date(year, 03, 31),
    showAnim: "clip"
    //numberOfMonths: 2
  });

});
<link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">

<div class="form-group">
  <label>Start Date</label>
  <input type="text" name="start_date" placeholder="Start Date" id="start_date" class="start_date form-control">
</div>
<div class="form-group">
  <label>End Date</label>
  <input type="text" name="end_date" id="end_date" placeholder="End Date" class="end_date form-control">
</div>
<script src="https://ajax.aspnetcdn.com/ajax/jQuery/jquery-3.3.1.min.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>

由于我们以字符串形式获取日期,因此可以使用$.datepicker.parseDate()将其解析为Date,并将年份递增为新的Date。

希望有帮助。