asp.net – Jquery datepicker：验证日期mm/dd/yyyy

我旁边有一个文本框和一个日期选择器,我使用的是asp.net,用户可以输入日期,也可以从datepicker中选择日期.

如何验证日期输入是否正确？

<script type="text/javascript"> 
        $(document).ready(function () { 
            $('#<%=StartDate.ClientID%>').datepicker({ showOn: 'button',buttonImage: '../images/Calendar.png',buttonImageOnly: true,onSelect: function () { },onClose: function () { $(this).focus(); } 
            }); 
        }); 
    </script>

解决方法

如果您使用的是ASP.NET,则可以使用ASP.NET比较验证器[ ASP.NET Date Validator].

<asp:TextBox ID="tb" runat="server"></asp:TextBox>

<asp:CompareValidator ID="cv" runat="server" 
ControlTovalidate="tb" ErrorMessage="* Please enter a valid date!" Text="*" 
Operator="DataTypeCheck" Type="Date"></asp:CompareValidator>

****更新**

我使用了上面的Compare Validator执行的javascript并在其周围包装了一个自定义的jQuery Validation方法：

<script type="text/javascript">
    $(document).ready(function () {

        $.validator.addMethod("truedate",function (value,element,params) {
            function GetFullYear(year,params) {
                var twoDigitCutoffYear = params.cutoffyear % 100;
                var cutoffYearCentury = params.cutoffyear - twoDigitCutoffYear;
                return ((year > twoDigitCutoffYear) ? (cutoffYearCentury - 100 + year) : (cutoffYearCentury + year));
            }

            var yearFirstExp = new RegExp("^\\s*((\\d{4})|(\\d{2}))([-/]|\\. ?)(\\d{1,2})\\4(\\d{1,2})\\.?\\s*$");
            try {
                m = value.match(yearFirstExp);
                var day,month,year;
                if (m != null && (m[2].length == 4 || params.dateorder == "ymd")) {
                    day = m[6];
                    month = m[5];
                    year = (m[2].length == 4) ? m[2] : GetFullYear(parseInt(m[3],10));
                }
                else {
                    if (params.dateorder == "ymd") {
                        return null;
                    }
                    var yearLastExp = new RegExp("^\\s*(\\d{1,2})([-/]|\\. ?)(\\d{1,2})(?:\\s|\\2)((\\d{4})|(\\d{2}))(?:\\s\u0433\\.)?\\s*$");
                    m = value.match(yearLastExp);
                    if (m == null) {
                        return null;
                    }
                    if (params.dateorder == "mdy") {
                        day = m[3];
                        month = m[1];
                    }
                    else {
                        day = m[1];
                        month = m[3];
                    }
                    year = (m[5].length == 4) ? m[5] : GetFullYear(parseInt(m[6],10));
                }
                month -= 1;
                var date = new Date(year,day);
                if (year < 100) {
                    date.setFullYear(year);
                }
                return (typeof (date) == "object" && year == date.getFullYear() && month == date.getMonth() && day == date.getDate()) ? date.valueOf() : null;
            }
            catch (err) {
                return null;
            }
        },"Please enter an actual date.");

        $("#form1").validate();

        $("#one").rules('add',{
            truedate: {
                cutoffyear: '2029',dateorder: 'mdy'
            }
        });
    });

</script>

<input id="one" />