【问题标题】:Make DataTable ignore Child rows when counting number of rows在计算行数时使 DataTable 忽略子行
【发布时间】:2017-05-02 08:47:19
【问题描述】:

我有一个数据表,并且我添加了子行,当使用以下命令单击父行时,这些子行会被切换:

$(function() {
    $('tr.parent')
        .css("cursor","pointer")
        .attr("title","Click to expand/collapse")
        .click(function(){
            $(this).siblings('.child-'+this.id).toggle();
        });
    $('tr[class^=child-]').hide().children('td');
});

基本上,在我的桌子上,我会做以下事情:

  1. 在每个父行(tr)上放置一个“父”类
  2. 给每个父行 (tr) 一个 id
  3. 给每个子行一个“child-ID”类,其中 ID 是 所属的父 tr

这很完美,这意味着只有在单击相应的父行时才会显示子行,但是,例如,如果我有 8 个父行并且其中一行有 2 个子行,则数据表将显示“显示 10 行”,我想要的基本上是在计算行数、剩余行数等时忽略子行...

有没有一种简洁的方法可以做到这一点无需修改原始数据表 js?

JsFiddlehttp://jsfiddle.net/xv3xjbLL/1/

在 JsFiddle 中,如果单击第一行,则会出现两个子行,但是计数器显示为 10,而最初仅显示 8。有没有办法不计算子行?

【问题讨论】:

  • if for example, I have 8 parent rows and one of the rows has 2 child rows, the data table will show "Showing 10 rows",不,这里没有发生这种情况:- datatables.net/examples/api/row_details.html 。所以要么创建一个你的代码,以便我们检查并让你知道。或者从示例中获取参考并更正您的代码
  • @AlivetoDie,添加了 JsFiddle。

标签: javascript jquery datatable datatables


【解决方案1】:

请在此链接中找到您的解决方案

$(document).ready(function() {
    $('#example').dataTable({
    	"sPaginationType": "full_numbers",
      'iDisplayLength': 12,
      "aLengthMenu": [[12, 25, 50, -1], [10, 25, 50, "All"]]
    });
});

$(function() {
	$('tr.parent')
		.css("cursor","pointer")
		.attr("title","Click to expand/collapse")
		.click(function(){
			$(this).siblings('.child-'+this.id).toggle();
		});
	$('tr[class^=child-]').hide().children('td');
});
<link rel="stylesheet" href="http://ajax.aspnetcdn.com/ajax/jquery.dataTables/1.9.0/css/jquery.dataTables.css" type="text/css" />

<link rel="stylesheet" hfre="http://ajax.aspnetcdn.com/ajax/jquery.dataTables/1.9.0/css/jquery.dataTables_themeroller.css" type="text/css" />

<script src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.7.1.min.js"></script>
<script src="http://ajax.aspnetcdn.com/ajax/jquery.dataTables/1.9.0/jquery.dataTables.min.js"></script>
       
       
       

<table cellpadding="0" cellspacing="0" border="0" class="dataTable" id="example">
    <thead>
        <tr>
            <th>Rendering engine</th>
            <th>Browser</th>
            <th>Platform(s)</th>
            <th>Engine version</th>
            <th>CSS grade</th>
        </tr>
    </thead>
    <tbody>
        <tr id="1" class="parent">
            <td>Trident</td>
            <td>Internet
                 Explorer 4.0</td>
            <td>Win 95+</td>
            <td> 4</td>
            <td>X</td>
        </tr>
        <tr class="child-1">
            <td>Trident</td>
            <td>Internet
                 Explorer 5.0</td>
            <td>Win 95+</td>
            <td>5</td>
            <td>C</td>
        </tr>
        <tr class="child-1">
            <td>Trident</td>
            <td>Internet
                 Explorer 5.5</td>
            <td>Win 95+</td>
            <td>5.5</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Trident</td>
            <td>Internet
                 Explorer 6</td>
            <td>Win 98+</td>
            <td>6</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Trident</td>
            <td>Internet Explorer 7</td>
            <td>Win XP SP2+</td>
            <td>7</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Trident</td>
            <td>AOL browser (AOL desktop)</td>
            <td>Win XP</td>
            <td>6</td>
            <td>A</td>
        </tr>
        <tr class="parent" id="2">
            <td>Gecko</td>
            <td>Firefox 1.0</td>
            <td>Win 98+ / OSX.2+</td>
            <td>1.7</td>
            <td>A</td>
        </tr>
        <tr class="child-2">
            <td>Gecko</td>
            <td>Firefox 1.5</td>
            <td>Win 98+ / OSX.2+</td>
            <td>1.8</td>
            <td>A</td>
        </tr>
        <tr class="child-2">
            <td>Gecko</td>
            <td>Firefox 2.0</td>
            <td>Win 98+ / OSX.2+</td>
            <td>1.8</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Gecko</td>
            <td>Firefox 3.0</td>
            <td>Win 2k+ / OSX.3+</td>
            <td>1.9</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Gecko</td>
            <td>Camino 1.0</td>
            <td>OSX.2+</td>
            <td>1.8</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Gecko</td>
            <td>Camino 1.5</td>
            <td>OSX.3+</td>
            <td>1.8</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Gecko</td>
            <td>Netscape 7.2</td>
            <td>Win 95+ / Mac OS 8.6-9.2</td>
            <td>1.7</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Gecko</td>
            <td>Netscape Browser 8</td>
            <td>Win 98SE+</td>
            <td>1.7</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Gecko</td>
            <td>Netscape Navigator 9</td>
            <td>Win 98+ / OSX.2+</td>
            <td>1.8</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Gecko</td>
            <td>Mozilla 1.0</td>
            <td>Win 95+ / OSX.1+</td>
            <td>1</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Gecko</td>
            <td>Mozilla 1.1</td>
            <td>Win 95+ / OSX.1+</td>
            <td>1.1</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Gecko</td>
            <td>Mozilla 1.2</td>
            <td>Win 95+ / OSX.1+</td>
            <td>1.2</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Gecko</td>
            <td>Mozilla 1.3</td>
            <td>Win 95+ / OSX.1+</td>
            <td>1.3</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Gecko</td>
            <td>Mozilla 1.4</td>
            <td>Win 95+ / OSX.1+</td>
            <td>1.4</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Gecko</td>
            <td>Mozilla 1.5</td>
            <td>Win 95+ / OSX.1+</td>
            <td>1.5</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Gecko</td>
            <td>Mozilla 1.6</td>
            <td>Win 95+ / OSX.1+</td>
            <td>1.6</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Gecko</td>
            <td>Mozilla 1.7</td>
            <td>Win 98+ / OSX.1+</td>
            <td>1.7</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Gecko</td>
            <td>Mozilla 1.8</td>
            <td>Win 98+ / OSX.1+</td>
            <td>1.8</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Gecko</td>
            <td>Seamonkey 1.1</td>
            <td>Win 98+ / OSX.2+</td>
            <td>1.8</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Gecko</td>
            <td>Epiphany 2.20</td>
            <td>Gnome</td>
            <td>1.8</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Webkit</td>
            <td>Safari 1.2</td>
            <td>OSX.3</td>
            <td>125.5</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Webkit</td>
            <td>Safari 1.3</td>
            <td>OSX.3</td>
            <td>312.8</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Webkit</td>
            <td>Safari 2.0</td>
            <td>OSX.4+</td>
            <td>419.3</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Webkit</td>
            <td>Safari 3.0</td>
            <td>OSX.4+</td>
            <td>522.1</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Webkit</td>
            <td>OmniWeb 5.5</td>
            <td>OSX.4+</td>
            <td>420</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Webkit</td>
            <td>iPod Touch / iPhone</td>
            <td>iPod</td>
            <td>420.1</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Webkit</td>
            <td>S60</td>
            <td>S60</td>
            <td>413</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Presto</td>
            <td>Opera 7.0</td>
            <td>Win 95+ / OSX.1+</td>
            <td>-</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Presto</td>
            <td>Opera 7.5</td>
            <td>Win 95+ / OSX.2+</td>
            <td>-</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Presto</td>
            <td>Opera 8.0</td>
            <td>Win 95+ / OSX.2+</td>
            <td>-</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Presto</td>
            <td>Opera 8.5</td>
            <td>Win 95+ / OSX.2+</td>
            <td>-</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Presto</td>
            <td>Opera 9.0</td>
            <td>Win 95+ / OSX.3+</td>
            <td>-</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Presto</td>
            <td>Opera 9.2</td>
            <td>Win 88+ / OSX.3+</td>
            <td>-</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Presto</td>
            <td>Opera 9.5</td>
            <td>Win 88+ / OSX.3+</td>
            <td>-</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Presto</td>
            <td>Opera for Wii</td>
            <td>Wii</td>
            <td>-</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Presto</td>
            <td>Nokia N800</td>
            <td>N800</td>
            <td>-</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Presto</td>
            <td>Nintendo DS browser</td>
            <td>Nintendo DS</td>
            <td>8.5</td>
            <td>C/A<sup>1</sup></td>
        </tr>
        <tr>
            <td>KHTML</td>
            <td>Konqureror 3.1</td>
            <td>KDE 3.1</td>
            <td>3.1</td>
            <td>C</td>
        </tr>
        <tr>
            <td>KHTML</td>
            <td>Konqureror 3.3</td>
            <td>KDE 3.3</td>
            <td>3.3</td>
            <td>A</td>
        </tr>
        <tr>
            <td>KHTML</td>
            <td>Konqureror 3.5</td>
            <td>KDE 3.5</td>
            <td>3.5</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Tasman</td>
            <td>Internet Explorer 4.5</td>
            <td>Mac OS 8-9</td>
            <td>-</td>
            <td>X</td>
        </tr>
        <tr>
            <td>Tasman</td>
            <td>Internet Explorer 5.1</td>
            <td>Mac OS 7.6-9</td>
            <td>1</td>
            <td>C</td>
        </tr>
        <tr>
            <td>Tasman</td>
            <td>Internet Explorer 5.2</td>
            <td>Mac OS 8-X</td>
            <td>1</td>
            <td>C</td>
        </tr>
        <tr>
            <td>Misc</td>
            <td>NetFront 3.1</td>
            <td>Embedded devices</td>
            <td>-</td>
            <td>C</td>
        </tr>
        <tr>
            <td>Misc</td>
            <td>NetFront 3.4</td>
            <td>Embedded devices</td>
            <td>-</td>
            <td>A</td>
        </tr>
        <tr>
            <td>Misc</td>
            <td>Dillo 0.8</td>
            <td>Embedded devices</td>
            <td>-</td>
            <td>X</td>
        </tr>
        <tr>
            <td>Misc</td>
            <td>Links</td>
            <td>Text only</td>
            <td>-</td>
            <td>X</td>
        </tr>
        <tr>
            <td>Misc</td>
            <td>Lynx</td>
            <td>Text only</td>
            <td>-</td>
            <td>X</td>
        </tr>
        <tr>
            <td>Misc</td>
            <td>IE Mobile</td>
            <td>Windows Mobile 6</td>
            <td>-</td>
            <td>C</td>
        </tr>
        <tr>
            <td>Misc</td>
            <td>PSP browser</td>
            <td>PSP</td>
            <td>-</td>
            <td>C</td>
        </tr>
        <tr>
            <td>Other browsers</td>
            <td>All others</td>
            <td>-</td>
            <td>-</td>
            <td>U</td>
        </tr>
    </tbody>
</table>

http://jsfiddle.net/Venkatachalam_Perisetla/xv3xjbLL/2/

【讨论】:

  • 不幸的是,这仅涵盖有两个子行的情况,可能所有这些父行都有子行,或者它们都没有子行,等等......这个似乎只涵盖有 2 个子行的情况。我错了吗?
  • 当子行自动出现时,它会忽略只有父行会显示为计数,对吗?
  • 是的,这就是目标。所以基本上,如果表格应该每页显示 10 行并且有 14 行(10 个父项,4 个子项),它应该显示 10 行并显示它显示 10 行和底部的总行数也应该只考虑父母。
  • 彼得,你能不能在数据表加载之后附加那个孩子然后它会工作,而加载时间你正在传递那个孩子 tr 也是这就是为什么它会占用总数。
  • 这可能是一种方法,我会在周末尝试一下并告诉你。谢谢。
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