使用Jquery比较两个日期N次 [英] Comparing two dates N times using Jquery

问题描述

在这里使用了一个名为[0]的字段......但实际上我将它们与索引中的+1（[1]，[2]等）克隆...同样从[0]开始。从[0]开始日期到[0]结束日期。
我将比较这两个结束日期的日期不得少于开始日期。
这里前两个代码块正常工作，因为每个代码块都是一行。但是，无论何时我试图将其设置为'N'行，它都不起作用，即最后一块代码无法工作。

In here one field named to[0] is used...but actually I have them 'N' times with the +1 in index (to[1],to[2] etc)..which are generating due to cloning... same goes for from[0]. from[0] is start date and to[0] is end date. I am comparing these two dates for end date not to be less than the start date. Here first 2 blocks of code are working properly because each is for one row. But whenever I am trying to make it for 'N' rows, it isn't working i.e. the last block of code isn't working.

我没有找到选择这些元素的方法，因为名称是动态生成的...

I am not getting a way for selecting these element since the name are generating dynamically...

Jquery代码是：

Jquery Code Is:

    $(document).ready(function() {
                $("input[name='to[0]']").blur( function() {
                    if ($("input[name='to[0]']").val() != 'To' && $("input[name='from[0]']").val() != 'From') {
                        var a1 = $("input[name='from[0]']").val();
                        var b1 = $("input[name='to[0]']").val();
                        alert(b1);alert(a1);
                        if (a1 > b1) {
                                    alert("Invalid Date Range!\nStart Date cannot be after End Date!");
                        }
                    }
                });
                $("input[name='to[1]']").blur( function() {
                    if ($("input[name='to[1]']").val() != 'To' && $("input[name='from[1]']").val() != 'From') {
                        var a1 = $("input[name='from[1]']").val();
                        var b1 = $("input[name='to[1]']").val();
                        alert(b1);alert(a1);
                        if (a1 > b1) {
                                    alert("Invalid Date Range!\nStart Date cannot be after End Date!");
                        }
                    }
                });
                $("td.date").click( function() {
                    var n = $('#table2 tbody>tr').length - 2;
                    var r=2;
                    $("td.date>input:first").next().blur( function() {
                        while(r<n) {
                            if ($("input[name='to[r]']").val() != 'To' && $("input[name='from[r]']").val() != 'From') {
                                var a1 = $("input[name='from[r]']").val();
                                var b1 = $("input[name='to[r]']").val();
                                alert(b1);alert(a1);
                                if (a1 > b1) {
                                            alert("Invalid Date Range!\nStart Date cannot be after End Date!");
                                }
                            }
                            r++;
                        }
                    });
                });

HTML是..

 <td width="15%" align="center" >
            <input class="f" style="width:70px" type="text" size="12" name="from[0]"  value="From" readonly="readonly"  />
            <a class="datepicker" href="#"><img alt="Pick a date" src="js/date.gif" border="0" width="17" height="16" /></a>
         </td>
         <td width="15%" align="center" >
            <input style="width:70px" class="f" type="text" size="12" name="to[0]" value="To" readonly="readonly" />
              <a class="datepicker" href="#"><img alt="Pick a date" src="js/date.gif" border="0" width="17" height="16" /></a>
         </td>

  <td width="15%" align="center" class="date" >
            <input style="width:70px" type="text" size="12" name="from[1]"  value="From" readonly="readonly"  />
            <a class="datepicker" href="#"><img alt="Pick a date" src="js/date.gif" border="0" width="17" height="16" /></a>
         </td>
         <td width="15%" align="center" class="date" >
            <input style="width:70px" class="f" type="text" size="12" name="to[1]" value="To" readonly="readonly" />
              <a class="datepicker" href="#"><img alt="Pick a date" src="js/date.gif" border="0" width="17" height="16"  /></a>
         </td>

包含来自[1]和[1]的td的最后一行被克隆，之后克隆最后一行...

last row which contains td for from[1] and to[1] is getting cloned and after that last row gets cloned...

推荐答案

只需更改您的选择器，那么您就不需要复制代码。试试看：

Just change your selector, then you don't need to duplicate the code. Try this:

//^= means name starts with, so we are selecting all inputs with that matcher
$("input[name^='to['").blur( function() {
    //first we get the name in a variable (just for shortness)
    var thisName = $(this).prop("name");
    //we then get the numbered index, by splitting the id of the current item
    var index = thisName.substring(thisName.indexOf("[") + 1).replace("]", "");
    //based on the index, we now can get the corresponding "from" field
    var correspondingFromField = $("input[name='from[" + index + "]']");
    //now we just do your logic:
    if ($(this).val() != 'To' && correspondingFromField.val() != 'From') {
        var a1 = correspondingFromField.val();
        var b1 = $(this).val();
        alert(b1);alert(a1);
        if (a1 > b1) {
            alert("Invalid Date Range!\nStart Date cannot be after End Date!");
        }
    }
});

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