用于选择月份和年份的 jQuery UI DatePicker 不起作用

Question

我使用 jquery datepicker 作为月份选择器，它正在工作，但唯一的问题是，如果我从日历中选择一个月，那么它会在输入字段中显示该月份，但是当我再次单击该输入字段时它不会显示所选月份，但显示当前月份。

HTML

<label for="startDate">Date :</label>
<input name="startDate" id="startDate" class="date-picker" />

JS

$(function() {
    $('.date-picker').datepicker( {
        changeMonth: true,
        changeYear: true,
        showButtonPanel: true,
        dateFormat: 'MM yy',
        onClose: function(dateText, inst) { 



            function isDonePressed(){
                            return ($('#ui-datepicker-div').html().indexOf('ui-datepicker-close ui-state-default ui-priority-primary ui-corner-all ui-state-hover') > -1);
                        }

                        if (isDonePressed()){

                            var month = $("#ui-datepicker-div .ui-datepicker-month :selected").val();
                            var year = $("#ui-datepicker-div .ui-datepicker-year :selected").val();
                            $(this).datepicker('setDate', new Date(year, month, 1));
                             console.log('Done is pressed')

                        }



        }
    });
});

这是我的问题的小提琴。 http://jsfiddle.net/DBpJe/5103/

Answer 1

您必须像下面一样更改 beforeShow，而且由于月份名称在字符串中，您必须有一个这样的数组来将月份映射到数字

var monthNames = ["January", "February", "March", "April", "May", "June",
  "July", "August", "September", "October", "November", "December"
];
beforeShow: function(input, inst) {
  inst.dpDiv.addClass('month_year_datepicker')
  if ((datestr = $(this).val()).length > 0) {
    datestr = datestr.split(" ");
    year = datestr[1];
    month = monthNames.indexOf(datestr[0]);
    $(this).datepicker('option', 'defaultDate', new Date(year, month, 1));
    $(this).datepicker('setDate', new Date(year, month, 1));
    $(".ui-datepicker-calendar").hide();
  }
}

这里是demo 1

或者您可以使用这种更好看的方法将月份转换为数字

function getMonthFromString(mon){
   return new Date(Date.parse(mon +" 1, 2012")).getMonth()+1
}

礼貌：SO answer

这里是demo 2

Answer 2

还增加了一个新功能：限制到日期晚于开始日期，

 <script type="text/javascript">
        $(function() {
     $( "#from, #to").datepicker(
                    {
                        dateFormat: "yy/mm",
                        changeMonth: true,
                        changeYear: true,
                        showButtonPanel: true,
                        showOn: "button",
                        buttonImage: "../../static/calendar.gif",
                        buttonImageOnly: true,
                        //buttonText: "Select date",
                        onClose: function(dateText, inst) {
                           var month = $("#ui-datepicker-div .ui-datepicker-month :selected").val();
                           var year = $("#ui-datepicker-div .ui-datepicker-year :selected").val();             
                           $(this).datepicker('setDate', new Date(year, month, 1));

                            function isDonePressed(){
                                return ($('#ui-datepicker-div').html().indexOf('ui-datepicker-close ui-state-default ui-priority-primary ui-corner-all ui-state-hover') > -1);
                            }

                            if (isDonePressed()){
                                var month = $("#ui-datepicker-div .ui-datepicker-month :selected").val();
                                var year = $("#ui-datepicker-div .ui-datepicker-year :selected").val();
                                $(this).datepicker('setDate', new Date(year, month, 1)).trigger('change');

                                 $('.from').focusout()//Added to remove focus from datepicker input box on selecting date
                            }
                        },

                        beforeShow : function(input, inst) {

                            inst.dpDiv.addClass('month_year_datepicker')

               if ((datestr = $(this).val()).length > 0) {
                   year = datestr.substring(datestr.length-4, datestr.length);
                   month = jQuery.inArray(datestr.substring(0, datestr.length-5), $(this).datepicker('option', 'monthNames'));
                   $(this).datepicker('option', 'defaultDate', new Date(year, month, 1));
                   $(this).datepicker('setDate', new Date(year, month, 1));    
               }
               var other = this.id == "from" ? "#to" : "#from";
               var option = this.id == "from" ? "maxDate" : "minDate";        
               if ((selectedDate = $(other).val()).length > 0) {
                   year = selectedDate.substring(selectedDate.length-4, selectedDate.length);
                   month = jQuery.inArray(selectedDate.substring(0, selectedDate.length-5), $(this).datepicker('option', 'monthNames'));
                   $(this).datepicker( "option", option, new Date(year, month, 1));
               }
           }
       });
       $("#btnShow").click(function(){ 
       if ($("#from").val().length == 0 || $("#to").val().length == 0){
           alert('All fields are required');
       }
       else{
           alert('Selected Month Range :'+ $("#from").val() + ' to ' + $("#to").val());
           }
       }),

       <!--reset-->
       $(".reset").click(function() {
           $(this).closest('form')[0].reset()
       });

});


        </script>

Answer 3

这样试试

$('#startDate').datepicker({
    dateFormat: 'mm/yy'
});

编辑： 我现在看到了你说的。 ^

Answer 4

有一种方法可以通过将 currentdate 设置为 datetimepicker 来做到这一点

$("#datepicker").datepicker("setDate", currentDate);

这是工作示例JQFAQ Topic。