Question

我有一个数据表，其中我显示子行扩展崩溃功能。它运行良好，但我想得到一个表的最后一个td的内容。现在我已经创建了一个函数，它放置了一些硬编码值在数据表扩展的地方。在那个地方我想获得那些td值。！

enter image description here

这是我发布的代码

<html>
<head>
<title>Insert title here</title>
<link rel="stylesheet" type="text/css" href="https://cdn.datatables.net/1.10.5/css/jquery.dataTables.css">
<link rel="stylesheet" type="text/css" href="https://cdn.datatables.net/responsive/1.0.4/css/dataTables.responsive.css">


<script type="text/javascript" language="javascript" src="https://code.jquery.com/jquery-1.11.1.min.js"></script>
<script type="text/javascript" language="javascript" src="https://cdn.datatables.net/1.10.5/js/jquery.dataTables.min.js"></script>
<script type="text/javascript" language="javascript" src="https://cdn.datatables.net/responsive/1.0.4/js/dataTables.responsive.min.js"></script>

</head>
<body>

<style type="text/css">
td.details-control {
background:     url('http://www.datatables.net/examples/resources/details_open.png') no-repeat     center center;
 cursor: pointer;
  }
tr.shown td.details-control {
background:   url('http://www.datatables.net/examples/resources/details_close.png') no-repeat    center center;
 }
</style>
<script type="text/javascript" class="init">
  /* Formatting function for row details - modify as you need */
   function format ( d ) {

    var v;

        $("#example tbody tr").each(function() {

        // Within tr we find the last td child element and get content
        v = $(this).find("td:last-child").html();
        return v;
        });

    // Within tr we find the last td child element and get content
    //alert($(this).find("td:last-child").html());


    return '<fieldset> <legend>     </legend>   <table cellpadding="5" cellspacing="0" border="0" style="padding-left:50px;">'+
    '<tr>'+ 
    '<td>'+v+'</td>'
   '</tr>'

    '</table> </fieldset>' 


  }
  $(document).ready(function() {
    var table = $('#example').DataTable();
   // Add event listener for opening and closing details
    $('#example tbody ').on('click', 'td.details-control', function () {
    var tr = $(this).closest('tr');
    var row = table.row( tr );

if ( row.child.isShown() ) {
    // This row is already open - close it
    row.child.hide();
    tr.removeClass('shown');
}
else {
    // Open this row
    console.log(row);
    row.child( format(row.data()) ).show();
    tr.addClass('shown');
   }
  } );
  // End add event 

 $("#divPopUp").dialog({
    resizable: true,
   autoOpen: false,
   width: 550,
   modal: true,
   buttons: {
    "Save": function() {
        var text = $(this).find( ":checkbox:checked" ).map(function() {
            return this.value+' ';
        }).get().join();

        var obj = $(this).data("opener");
        $(obj).parents('td:first').siblings(':eq(2)').find(':text').val(text);
        $( this ).dialog( "close" );
    },
    Cancel: function() {
        $( this ).dialog( "close" );
    }
},
close:function(){
    $(this).find( ":checkbox" ).removeAttr('checked');
    $( this ).dialog( "close" );
}
});

$('button.btn').on('click', function(){
var title = $(this).parents('td:first').siblings(':eq(0)').text();
console.log("title is : "  + title);
$( "#divPopUp" ).data('opener', this).dialog( "option", "title", title    ).dialog( "open" );
      var text =          $(this).parents('td:first').siblings(':eq(2)').find(':input').val();
if($.trim(text) != ''){
      var texts = text.split(" ,"); 
    $.each(texts, function(i, value){    $("#divPopUp").find(':checkbox[value="'+$.trim(value)+'"]').prop('checked', true);
       });
     }
   });
 } );
   </script>
   <body>
     <table id="example" class="display" cellspacing="0" width="100%">
        <thead>
           <tr>
              <th></th>
             <th>Name</th>
            <th>Position</th>
            <th>Office</th>
           <th>Age</th>
           <th>Start date</th>
          <th>Salary</th>

    </tr>
</thead>
<tbody>
    <tr>
       <td class="details-control" ></td>       
        <td>Tiger Nixon</td>
        <td>System Architect</td>
        <td>Edinburgh</td>
        <td>61</td>
        <td>2011/04/25</td>
        <td>$320,800</td>


    </td>
    </tr>
    <tr>
         <td class="details-control" ></td>
        <td>Garrett Winters</td>
        <td>Accountant</td>
        <td>Tokyo</td>
        <td>63</td>
        <td>2011/07/25</td>
        <td>$170,750</td>


    </td>
    </tr>
    <tr>
         <td class="details-control" ></td>
        <td>Ashton Cox</td>
        <td>Junior Technical Author</td>
        <td>San Francisco</td>
        <td>66</td>
        <td>2009/01/12</td>
        <td>$86,000</td>    
    </td>
    </tr>
  </tbody>
  </table>

在该格式函数中，我想获得datatable的所有td值。有人请帮助

Answer 1

我是在jQuery中完成的，因为你有每行的最后一个td，因为我没有删除它们以显示它使用salary列工作。

这将获取每行的最后td的值，在函数中，您可以对值进行任何操作。

// Run function for each tbody tr
$("#example tbody tr").each(function() {

  // Within tr we find the last td child element and get content
  alert($(this).find("td:last-child").html());
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table id="example" class="display" cellspacing="0" width="100%">
  <thead>
    <tr>
      <th></th>
      <th>Name</th>
      <th>Position</th>
      <th>Office</th>
      <th>Age</th>
      <th>Start date</th>
      <th>Salary</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td class="details-control"></td>
      <td>Tiger Nixon</td>
      <td>System Architect</td>
      <td>Edinburgh</td>
      <td>61</td>
      <td>2011/04/25</td>
      <td>$320,800</td>
    </tr>
    <tr>
      <td class="details-control"></td>
      <td>Garrett Winters</td>
      <td>Accountant</td>
      <td>Tokyo</td>
      <td>63</td>
      <td>2011/07/25</td>
      <td>$170,750</td>
    </tr>
    <tr>
      <td class="details-control"></td>
      <td>Ashton Cox</td>
      <td>Junior Technical Author</td>
      <td>San Francisco</td>
      <td>66</td>
      <td>2009/01/12</td>
      <td>$86,000</td>
    </tr>
  </tbody>
</table>

Answer 2

我试过jquery。

代码：

$('#example tr td:last-child').each(function () {
    console.log($(this).html());
});

请尝试使用此代码，希望此代码适用于您。

Answer 3

获取匹配元素的集合：last＆lt; td＆gt;在所有行中：

var last_col = $("#example tbody tr td:last-child");

现在你可以得到＆lt; td＆gt;值作为数字数组（jQuery.map()或Array.prototype.map()）：

var values = $.map(last_col.get(), function (td) {
    return +$(td).text().replace(/[\$\,\s]/g, "") || 0;
});

奖励：如果你想要对数组中的每个值求和（或操作）（从左到右），你可以使用Array.prototype.reduce()

var total = values.reduce(function (prev, current) { 
    return prev + current;
}, 0 /*starts prev*/);

您可以在此处运行此代码： https://jsfiddle.net/4kw6yco7/

Answer 4

说你想要一行的整个数据

var row = '<tr>' + '<td id="tduid">' + value['uid'] + '</td>' + '<td>' + value['name'] + '</td>' + '<td>' + value['address'] + '</td>' + '<td>' + tags + '</td>' + '<td>' + '<button class="deleteUser btn btn-danger" type="submit" id="del">Edit</button>' + '</td></tr>';

您需要此行的值。接下来，

$('#del').click(function(e) {                                                       
     var tuid = $(this).closest('tr').find('#tduid').text();
                alert(tuid);
      });

如何在javascript函数中获取表的所有td值

4 个答案: