Html Bootstrap 4 表格响应，水平和垂直滚动
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Bootstrap 4 Table Responsive, Horizontal and Vertical Scroll
提问by JCAguilera
I'm using bootstrap tables with Angular 6 in a project, and I was able to create vertical scroll table-body with this code:
我在一个项目中使用带有 Angular 6 的引导表，并且我能够使用以下代码创建垂直滚动表体：
<table class="table table-striped table-bordered" style="margin-bottom: 0">
<thead> <!-- Column names -->
<tr>
<th scope="col">#</th>
<th scope="col">Col 1</th>
<th scope="col">Col 2</th>
<th scope="col">Col 3</th>
...
<th scope="col">Col N</th>
</tr>
</thead>
<tbody> <!-- Data -->
<tr>
<th scope="row">1</th>
<td>AAAAA</td>
<td>BBBBB</td>
<td>CCCCC</td>
...
<td>DDDDD</td>
</tr>
<tr>
<th scope="row">2</th>
<td>AAAAA</td>
<td>BBBBB</td>
<td>CCCCC</td>
...
<td>DDDDD</td>
</tr>
...
<tr>
<th scope="row">n</th>
<td>AAAAA</td>
<td>BBBBB</td>
<td>CCCCC</td>
...
<td>DDDDD</td>
</tr>
</tbody>
</table>
And css:
和CSS：
tbody {
display:block;
max-height:500px;
overflow-y:auto;
}
thead, tbody tr {
display:table;
width:100%;
table-layout:fixed;
}
thead {
width: calc( 100% - 1em )
}
But now, if there are a lots of columns it doesn't look good.
但是现在，如果有很多列，它看起来不太好。
So I wanted to add a horizontal scroll too, so I could scroll the full table horizontally and only the table body vertically. To do the horizontal scroll I used .table-responsive like this:
所以我也想添加一个水平滚动条，这样我就可以水平滚动整个表格，而垂直滚动表格主体。为了做水平滚动，我使用了 .table-responsive 这样的：
<div class="table-responsive">
<table class="table table-striped table-bordered" style="margin-bottom: 0">
...
</table>
</div>
But it only works without the vertical scroll part in the css.
但它只能在 css 中没有垂直滚动部分的情况下工作。
I want to combine this two ways to scroll the table. I changed the width values on the css part, from 100% to static px values like this:
我想结合这两种方式来滚动表格。我将 css 部分的宽度值从 100% 更改为静态 px 值，如下所示：
...
thead, tbody tr {
display:table;
width: 2000px;
table-layout:fixed;
}
thead {
width: calc( 2000px - 1em )
}
And it worked, but I need to set a static width and I don't know how can I do this dynamically (depending on the number of columns).
它有效，但我需要设置静态宽度，我不知道如何动态执行此操作（取决于列数）。
采纳答案by JCAguilera
I fixed it this like this: First I edited the css, then I removed the theadpart, and added some content in the body like this:
我是这样修复的：首先我编辑了 css，然后我删除了该 thead部分，并在正文中添加了一些内容，如下所示：
body {
--table-width: 100%; /* Or any value, this will change dinamically */
}
tbody {
display:block;
max-height:500px;
overflow-y:auto;
}
thead, tbody tr {
display:table;
width: var(--table-width);
table-layout:fixed;
}
I also left the .table-responsivediv:
我也离开了.table-responsivediv：
<div class="table-responsive">
<table class="table table-striped table-bordered" style="margin-bottom: 0">
...
</table>
</div>
Then I calculated --table-widthdepending on the number of columns and length of the longest column name. I did this with Angular, in my component .ts:
然后我--table-width根据列数和最长列名的长度进行计算。我用 Angular 在我的组件 .ts 中做到了这一点：
calculateTableWidth() {
// Get the table container width:
const pageWidth = document.getElementById('tableCard').offsetWidth;
// Get the longest column name
const longest = this.tableColumns.sort(function (a, b) { return b.length - a.length; })[0];
// Calculate table width
let tableWidth = this.tableColumns.length * longest.length * 14;
// If the width is less than the pageWidth
if (tableWidth < (pageWidth - 10)) {
// We set tableWidth to pageWidth - scrollbarWidth (10 in my project)
tableWidth = pageWidth - 10;
}
// Then we update the --table-width variable:
document.querySelector('body').style.cssText = '--table-width: ' + tableWidth + 'px';
}
I need to run calculateTableWidth()at the beginning in ngOnInit()(or when I have defined the tableColumns array) and then when I resize the window:
我需要calculateTableWidth()在开始ngOnInit()时运行（或当我定义了 tableColumns 数组时），然后在我调整窗口大小时运行：
ngOnInit() {
this.tableColumns = this.myAppService.getTableColumnsNames();
this.calculateTableWidth();
}
@HostListener('window:resize', ['$event'])
onResize(event: any) {
this.calculateTableWidth();
}
And that's how I fixed this. Now I have a good looking table, with vertical and horizontal scrolling.
这就是我解决这个问题的方法。现在我有一个漂亮的表格，垂直和水平滚动。
回答by Janith Widarshana
Hope this will help any body to develop fix header angular 6 table
希望这将有助于任何机构开发修复标题角度 6 表
scss
scss
// Table related css start
.deallist-tbl {
width: 100%;
.table-striped>tbody>tr:nth-child(odd)>td {
background-color: #F9F9F9;
}
.table-hover tbody tr:hover td {
background-color: #0099CC;
color: $content-text-white;
}
.table-hover tbody tr.active td {
background-color: #0099CC;
color: $content-text-white;
}
table {
border-collapse: collapse;
width: 100%;
overflow-x: scroll;
display: block;
}
thead {
background-color: #F5F1EF;
}
thead,
tbody {
display: block;
}
tbody {
overflow-y: scroll;
overflow-x: hidden;
height: 650px;
}
td {
min-width: 90px;
height: 30px;
border: solid 1px $border-color;
overflow: hidden;
text-overflow: ellipsis;
max-width: 100px;
padding: 5px 5px 5px 10px;
&.index-clm {
width: 35px;
min-width: 35px;
padding: 5px;
}
}
th {
font-size: 10px;
font-weight: bold;
min-width: 90px;
height: 30px;
overflow: hidden;
text-overflow: ellipsis;
text-transform: uppercase;
max-width: 100px;
padding: 5px 5px 6px 10px;
border-left: solid 1px $content-text-black;
border-top: solid 1px $border-color;
border-bottom: solid 1px $border-color;
&:last-child {
border-right: solid 1px $content-text-black;
}
&.index-clm {
width: 35px;
min-width: 35px;
padding: 5px;
}
}
} // Table related css end
HTML
HTML
<table class="table table-striped table-hover mb-0" id="dataTable" #tblDealList (scroll)="scrollHandler($event)">
<thead [style.width.px]="tblWidth">
<tr>
<th class="text-center index-clm">*</th>
<th app-sortable-column columnName="Column1">Column 1</th>
<th app-sortable-column columnName="Column2">Column 2</th>
<th app-sortable-column columnName="Column3">Column 3</th>
<th app-sortable-column columnName="Column4">Column 4</th>
<th app-sortable-column columnName="Column5">Column 5</th>
<th app-sortable-column columnName="Column6">Column 6</th>
<th app-sortable-column columnName="Column7">Column 7</th>
<th app-sortable-column columnName="Column8">Column 8</th>
<th app-sortable-column columnName="Column9">Column 9</th>
<th app-sortable-column columnName="Column10">Column 10</th>
<th app-sortable-column columnName="Column11">Column 11</th>
<th app-sortable-column columnName="Column12">Column 12</th>
<th app-sortable-column columnName="Column13">Column 13</th>
<th app-sortable-column columnName="Column14">Column 14</th>
<th app-sortable-column columnName="Column15">Column 15</th>
<th app-sortable-column columnName="Column16">Column 16</th>
</tr>
</thead>
<tbody [style.width.px]="tblWidth">
<tr *ngFor="let item of dealList; let i = index" [class.active]="activeCode===i" (click)="selectDealItem(content,item, i)"
(dblclick)="show()">
<td class="text-center index-clm">{{item.isModified ? '*' : ''}}</td>
<td>{{item.Column1 }}</td>
<td>{{item.Column2 }}</td>
<td>{{item.Column3 }}</td>
<td>{{item.Column4 }}</td>
<td>{{item.Column5 }}</td>
<td>{{item.Column6 }}</td>
<td>{{item.Column7 }}</td>
<td>{{item.Column8 }}</td>
<td>{{item.Column9 }}</td>
<td>{{item.Column10 }}</td>
<td>{{item.Column11 }}</td>
<td>{{item.Column12 }}</td>
<td>{{item.Column13 }}</td>
<td>{{item.Column14 }}</td>
<td>{{item.Column15 }}</td>
<td>{{item.Column16 }}</td>
</tr>
</tbody>
</table>
Most important function of ts file is as follows
ts文件最重要的功能如下
/**
* set table width when scrolling
*/
@HostListener('window:scroll', ['$event'])
scrollHandler(event) {
this.tblWidth = this.tblWidthInitial + event.target.scrollLeft;
}
Initial table width can be calculated as follows
初始表格宽度可以计算如下
@ViewChild('tblDealList') tblDealList: ElementRef;
Inside ngOnInit
ngOnInit 内部
this.tblWidthInitial = this.tblDealList.nativeElement.offsetWidth;
Final outcome
最终结果
