我正在尝试基于default argument promotion为tbody
使用垂直滚动条的html表。我使滚动条正常工作,但是努力地动态设置列的宽度。建议的SO答案根据tbody列的宽度设置标题列的宽度。我想做相反的事情。我试图根据标题列的宽度设置tbody列的宽度(仅第一行)。
html
<table class="table mytable">
<thead>
<tr>
<th style="border-top:2px solid #ddd"></th>
<th colspan="4" style="text-align:center;border-left:1px solid #ddd;border-right:1px solid #ddd;border-top:2px solid #ddd">Group 1</th>
<th colspan="4" style="text-align:center;border-left:1px solid #ddd;border-right:1px solid #ddd;border-top:2px solid #ddd">Group 2</th>
<th style="border-top:2px solid #ddd">Group 3</th>
</tr>
<tr>
<th style="width:200px">Col 1</th>
<th style="width:150px;border-left:1px solid #ddd">Col 2</th>
<th style="width:150px">Col 3</th>
<th style="width:150px" class="td-md">Col 4</th>
<th style="width:150px">Col 5</th>
<th style="width:150px;border-left:1px solid #ddd">Col 6</th>
<th style="width:150px">Col 7</th>
<th style="width:150px">Col 8</th>
<th style="width:150px">Col 9</th>
<th style="width:150px;border-left:1px solid #ddd">Col 10</th>
</tr>
</thead>
<tbody>
<tr>
<td>A12345</td>
<td>1254</td>
<td>200</td>
<td>43243</td>
<td>432</td>
<td>4323</td>
<td>4324</td>
<td>434</td>
<td>4343244</td>
<td>4343244</td>
</tr>
<tr>
<td>A12345</td>
<td>1254</td>
<td>200</td>
<td>43243</td>
<td>432</td>
<td>4323</td>
<td>4324</td>
<td>434</td>
<td>4343244</td>
<td>4343244</td>
</tr>
<tr>
<td>A12345</td>
<td>1254</td>
<td>200</td>
<td>43243</td>
<td>432</td>
<td>4323</td>
<td>4324</td>
<td>434</td>
<td>4343244</td>
<td>4343244</td>
</tr>
<tr>
<td>A12345</td>
<td>1254</td>
<td>200</td>
<td>43243</td>
<td>432</td>
<td>4323</td>
<td>4324</td>
<td>434</td>
<td>4343244</td>
<td>4343244</td>
</tr>
<tr>
<td>A12345</td>
<td>1254</td>
<td>200</td>
<td>43243</td>
<td>432</td>
<td>4323</td>
<td>4324</td>
<td>434</td>
<td>4343244</td>
<td>4343244</td>
</tr>
</tbody>
</table>
JavaScript
$(function () {
// Change the selector if needed
var $table = $('.mytable'),
$bodyCells = $table.find('thead tr:nth-child(2) th'),
colWidth;
var alertWidth = '';
// Get the header columns width array
colWidth = $bodyCells.map(function() {
var $this = $(this);
alertWidth += $this.width() + ",";
return $this.width();
}).get();
alert(alertWidth);
// Set the width of first row's column
$table.find('tbody tr:first td').each(function(i, v) {
//alert(colWidth[i]);
$(v).width(colWidth[i]);
});
})
css
thead, tbody {
display: block;
}
tbody {
height: 100px; /* Just for the demo */
overflow-y: auto; /* Trigger vertical scroll */
overflow-x: hidden; /* Hide the horizontal scroll */
}
问题
这里的问题是jquery的width()
函数返回的值与th
上设置的值不同。如果我在浏览器中检查html,则width
的{{1}}属性与相应的td
不匹配
我也尝试过th
,但也没有问题。我
答案 0 :(得分:-1)
删除Java脚本,并将所有CSS替换为此:
table ,tr td{
border:1px solid red
}
tbody {
display:block;
height:200px;
overflow:auto;
}
thead, tbody tr {
display:table;
width:100%;
table-layout:fixed;/* even columns width , fix width of table too*/
}
thead {
width: calc( 100% - 1em )/* scrollbar is average 1em/16px width, remove it from thead width */
}
table {
width:400px;
}