为什么我不能在同一个表中使用两次datepicker？

Question

我知道有类似的questons,但我真的找不到适合我的问题的答案.

我有这个HTML表通过一个数组循环 - 在我的viewModel中定义:

<div class="formElement" id="AssimilationDT" style="overflow-x: auto; width: 100em;">           
               <table class="dataTable">
<thead>
    <tr>
        <th> 1 </th>
        <th> 2 </th>
        <th> 3</th>
        <th> 4</th>
        <th> 5</th>
        <th> 6</th>
        <th> 7</th>
        <th> 8</th>
        <th> 9</th>
        <th> 10</th>
        <th> 11</th>
        <th> 12/th>
        <th> 13</th>
        <th> 14</th>
        <th> 15</th>
        <th> 16</th>
        <th></th>
    </tr>   
</thead>
<tbody data-bind="foreach: assimilationRows">
    <tr>
        <td><input type="text" name="AssimilationDate" id="AssimilationDate" data-bind="event: { mouseover: assimilationDatePicker}, value: AssimilationDate"></td>
        <td><input type="text" name="InvoiceSum" data-bind="value: InvoiceSum"></td>
        <td><input type="text" name="FondAssimAmm" data-bind="value: FondAssimAmm"></td>
        <td><input type="text" name="FondSgebFondPerc" data-bind="value: FondSgebFondPerc"></td>
        <td><input type="text" name="FondWholeAssimPerc" data-bind="value: FondWholeAssimPerc"></td>
        <td><input type="text" name="SgebAssimAmm" data-bind="value: SgebAssimAmm"></td>
        <td><input type="text" name="SgebFondSgeb" data-bind="value: SgebFondSgeb"></td>
        <td><input type="text" name="SgebWholeAssimPerc" data-bind="value: SgebWholeAssimPerc"></td>
        <td><input type="text" name="FondSuppl" data-bind="value: FondSuppl"></td>
        <td><input type="text" name="FondSupplNum" data-bind="value: FondSupplNum"></td>
        <td><input type="text" name="FondSupplInvNum" data-bind="value: FondSupplInvNum"></td>
        <td><input type="text" name="FondDesc" data-bind="value: FondDesc"></td>
        <td><input type="text" name="SgebSuppl" data-bind="value: SgebSuppl"></td>
        <td><input type="text" name="SgebSupplNum" data-bind="value: SgebSupplNum"></td>
        <td><input type="text" name="SgebSupplInvNum" data-bind="value: SgebSupplInvNum"></td>
        <td>
                <img src="/HDSHubCreditMonitoring/js/images/close.jpg" alt="Close" data-bind="click: $root.removeAssimilationRow"> 
        </td>
    </tr>
</tbody>
</table>
<button type="button" id="newSupplierRow" class="button" data-bind="click: newAssimilationRow">?????? ???</button>
           </div>

我在viewModel中的内容是下面的代码 - 包含表行,它应该执行.datepicker:

AssimilationInfo = function(clientNum){
                    this.AssimilationDate = null;
                    this.InvoiceSum = null;
                    this.FondAssimAmm = null;
                    this.FondSgebFondPerc = null;
                    this.FondWholeAssimPerc = null;
                    this.SgebAssimAmm = null;
                    this.SgebFondSgeb = null;
                    this.SgebWholeAssimPerc = null;
                    this.FondSuppl = null;
                    this.FondSupplNum = null;
                    this.FondSupplInvNum = null;
                    this.FondDesc = null;
                    this.SgebSuppl = null;
                    this.SgebSupplNum = null;
                    this.SgebSupplInvNum = null;
                    this.SgebDesc = null;
                    assimilationDatePicker = (function() {
                        $( "#AssimilationDate" ).datepicker({
                            yearRange: "-20:+100",
                            changeMonth: true,
                            changeYear: true,
                            dateFormat: "d-M-y"
                        });
                    });
                },

和

newAssimilationRow = function (){
                      this.assimilationRows.push(new AssimilationInfo(this.clientNumber()));
                  },

                  removeAssimilationRow = function (ca){
                      assimilationRows.remove(ca);
                  },

上述功能是添加或删除HTML表中的行.我面临的问题是,.datepicker它只在第一个表行上工作 - 如果我添加另一行,它就不起作用了.

我很确定我无法正确调用它,但我无法将此问题视为初学者.有没有办法调用datepicker每个表格行？

UPDATE

我补充道

assimilationDatePicker = (function() {
                        $( ".AssimilationDate" ).datepicker({
                            yearRange: "-20:+100",
                            changeMonth: true,
                            changeYear: true,
                            dateFormat: "d-M-y"
                        });
                    });

现在它显示在每一行,但只更新第一行输入的值.

Answer 1

更新后您遇到的问题是使用所有日期选择器的相同ID.你应该从datepicker元素中删除id,然后jquery-ui会自动生成它,一切都会正常工作.我修改的位jsbin码@Kishorevarma来证明它.

另外,我建议你为datepicker使用自定义绑定,这是一个很好的例子.

ko.bindingHandlers.datepicker = {
    init: function(element, valueAccessor, allBindingsAccessor) {
        //initialize datepicker with some optional options
        var options = allBindingsAccessor().datepickerOptions || {},
            $el = $(element);

        $el.datepicker(options);

        //handle the field changing
        ko.utils.registerEventHandler(element, "change", function () {
            var observable = valueAccessor();
            observable($el.datepicker("getDate"));
        });

        //handle disposal (if KO removes by the template binding)
        ko.utils.domNodeDisposal.addDisposeCallback(element, function() {
            $el.datepicker("destroy");
        });

    },
    update: function(element, valueAccessor) {
        var value = ko.utils.unwrapObservable(valueAccessor()),
            $el = $(element);

        //handle date data coming via json from Microsoft
        if (String(value).indexOf('/Date(') == 0) {
            value = new Date(parseInt(value.replace(/\/Date\((.*?)\)\//gi, "$1")));
        }

        var current = $el.datepicker("getDate");

        if (value - current !== 0) {
            $el.datepicker("setDate", value);
        }
    }
};

然后你只需要用你的输入替换

<input data-bind="datepicker: myDate, datepickerOptions: {
                        yearRange: "-20:+100",
                        changeMonth: true,
                        changeYear: true,
                        dateFormat: "d-M-y"
                    }" />

这比使用鼠标悬停事件更清晰,更易读.