当 <td> 具有不同的宽度时，使 <th> 垂直边框贯穿整个 table

Question

我正在使用 Bootstrap tables 制作甘特图。我的时间宽度相同。为此，我设置了 colspan="15" 并在其中放置了一个 div 并将其设置为我想要的宽度。我想要的是从 table 到继续贯穿整个 table 的垂直边框，即使它的宽度不同。这可能吗？这是我的代码：

<div class="table-responsive gantt-chart">
    <table class="table table-bordered table-striped">
        <tbody>
            <tr>
                <th>Time</th>
                <th>Event</th>
                <th>Location</th>
                <th class="time">8am</th>
                <th class="time">9</th>
                <th class="time">10</th>
                <th class="time">11</th>
                <th class="time">12</th>
                <th class="time">1</th>
                <th class="time">2</th>
                <th class="time">3</th>
                <th class="time">4</th>
                <th class="time">5</th>
                <th class="time">6</th>
                <th class="time">7</th>
                <th class="time">8</th>
                <th class="time">9</th>
                <th class="time">10pm</th>
            </tr>
            <tr>
                <td>11:00 am</td>
                <td>Awesome party</td>
                <td>Party room</td>
                <td class="gantt-section" colspan="15">
                    <div class="gantt-line" style="margin-left:144px; width:48px;"></div>
                </td>
            </tr>
            <tr>
                <td>1:15 pm</td>
                <td>Test Event</td>
                <td>Home</td>
                <td class="gantt-section" colspan="15">
                    <div class="gantt-line" style="margin-left:252px; width:48px;"></div>
                </td>
            </tr>
            <tr>
                <td>3:15 pm</td>
                <td>Chad event</td>
                <td>tu casa</td>
                <td class="gantt-section" colspan="15">
                    <div class="gantt-line" style="margin-left:348px; width:72px;"></div>
                </td>
            </tr>
            <tr>
                <td>9:00 pm</td>
                <td>Randomness</td>
                <td>Random Hall</td>
                <td class="gantt-section" colspan="15">
                    <div class="gantt-line" style="margin-left:624px; width:72px;"></div>
                </td>
            </tr>
        </tbody>
    </table>
</div>

这是它的截图：

我在那里画的黑线表示我想对每个部分做什么。我不确定这是否可行，或者我是否需要寻找其他方法。我正在使用 php 在正确的位置输入蓝色 div 以匹配列出的时间。

Answer 1

由于之前的解决方案（见下文）在某些情况下会失败，并且您已经将 jQuery 添加到项目中（Bootstrap 需要），这里是另一个示例用 JavaScript 完成，这可能更好：

动态添加竖线（它们可以是 divs）
将它们放在 table
根据每一行设置位置
调整页面大小时重新调整它们的位置。

像这样（你也可以see it on this JSFiddle）：

function setVerticalBars() {

    var x = 0;
    
    // for each cell with a .time class
    $(".time").each(function() {

        // create the vertical line if it doesn't exist
        if (!$("#vertical-bar-" + x).length) {
            $(".mygantt").append('<div id="vertical-bar-' + x + '" class="vertical-bar"></div>');
        }

        // select the vertical bar associated to this cell
        var bar = $("#vertical-bar-" + x);

        // place it in he same position as the cell
        bar.css("left", $(this).position().left);

        // increase the counter to avoid duplicated id's
        x++;
    });
}

// adjust the divs on page load and when the page is resized
$(document).ready(setVerticalBars );
$(window).on("resize", setVerticalBars );

/* make the odd trs semitransparent instead of gray (so you can see the bars through them) */
.mytable>tbody>tr:nth-child(odd)>td {
    background:rgba(0,0,0,0.05) !important;
}

.mygantt .vertical-bar {
    width:1px;
    background:rgba(0,0,0,0.1);
    position:absolute;
    top:0;
    bottom:0;
}

/* Styles from question */
th.time, td.time {
    width:48px;
}

.gantt-chart {
    position:relative;
}

.gantt-line {
    background:blue;
    height:8px;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<script type="text/javascript" src="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
<link rel="stylesheet" type="text/css" href="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">

<div class="table-responsive gantt-chart mygantt">
    <table class="mytable table table-bordered table-striped">
        <tbody>
            <tr>
                <th>Time</th>
                <th>Event</th>
                <th>Location</th>
                <th class="time">8am</th>
                <th class="time">9</th>
                <th class="time">10</th>
                <th class="time">11</th>
                <th class="time">12</th>
                <th class="time">1</th>
                <th class="time">2</th>
                <th class="time">3</th>
                <th class="time">4</th>
                <th class="time">5</th>
                <th class="time">6</th>
                <th class="time">7</th>
                <th class="time">8</th>
                <th class="time">9</th>
                <th class="time">10pm</th>
            </tr>
            <tr>
                <td>11:00 am</td>
                <td>Awesome party</td>
                <td>Party room</td>
                <td class="gantt-section" colspan="15">
                    <div class="gantt-line" style="margin-left:144px; width:48px;"></div>
                </td>
            </tr>
            <tr>
                <td>1:15 pm</td>
                <td>Test Event</td>
                <td>Home</td>
                <td class="gantt-section" colspan="15">
                    <div class="gantt-line" style="margin-left:252px; width:48px;"></div>
                </td>
            </tr>
            <tr>
                <td>3:15 pm</td>
                <td>Chad event</td>
                <td>tu casa</td>
                <td class="gantt-section" colspan="15">
                    <div class="gantt-line" style="margin-left:348px; width:72px;"></div>
                </td>
            </tr>
            <tr>
                <td>9:00 pm</td>
                <td>Randomness</td>
                <td>Random Hall</td>
                <td class="gantt-section" colspan="15">
                    <div class="gantt-line" style="margin-left:624px; width:72px;"></div>
                </td>
            </tr>
        </tbody>
    </table>
</div>

此解决方案更好地适应 table 以及用户调整 window 大小时可能发生的变化。我觉得比上一个好，不过我还是把旧的留在下面供参考。

编辑 - 以前的解决方案：

正如我在评论中提到的，一种可能的解决方案是向模仿垂直线的 table 添加背景图像。这可以通过以下方式实现：

.mytable {
    background:url(http://i.imgur.com/8jNZRyf.png) repeat-y right top;
}

现在您还需要解决一个问题：Bootstrap table-stripped 样式的一行是透明的，而下一行是灰色的。您将只能通过偶数行看到垂直线，而不能通过奇数行看到。要解决此问题，请将奇数行的背景从灰色更改为半透明颜色：

.mytable>tbody>tr:nth-child(odd)>td {
    background:rgba(0,0,0,0.05) !important;
}

这应该可以解决问题。你可以在这个 JSFiddle 上看到一个演示：http://jsfiddle.net/8su2cr5m/

此解决方案的一个问题：只要单元格具有预期的宽度，背景图像就会起作用；如果他们不这样做（例如：当 table 将占据超过 100% 时，可以调整单元格的大小，以便 table 适合可用的 space）。一个解决方案是在 JS 中计算宽度并相应地调整背景图像的大小。

这是您案例的完整代码（您可以看到我在上一段中指定的问题，但如果您进入全屏模式，问题就消失了）：

/* set the table background to mimic the vertical bars bars */
.mytable {
  background:url(http://i.imgur.com/8jNZRyf.png) repeat-y right top;
}

/* make the odd trs semitransparent instead of gray (so you can see the bars through them) */
.mytable>tbody>tr:nth-child(odd)>td {
  background:rgba(0,0,0,0.05) !important;
}

/* Styles from question */
th.time, td.time {
  width:48px;
}

.gantt-line {
  background:blue;
  height:8px;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<script type="text/javascript" src="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
<link rel="stylesheet" type="text/css" href="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">

<div class="table-responsive gantt-chart">
  <table class="mytable table table-bordered table-striped">
    <tbody>
      <tr>
        <th>Time</th>
        <th>Event</th>
        <th>Location</th>
        <th class="time">8am</th>
        <th class="time">9</th>
        <th class="time">10</th>
        <th class="time">11</th>
        <th class="time">12</th>
        <th class="time">1</th>
        <th class="time">2</th>
        <th class="time">3</th>
        <th class="time">4</th>
        <th class="time">5</th>
        <th class="time">6</th>
        <th class="time">7</th>
        <th class="time">8</th>
        <th class="time">9</th>
        <th class="time">10pm</th>
      </tr>
      <tr>
        <td>11:00 am</td>
        <td>Awesome party</td>
        <td>Party room</td>
        <td class="gantt-section" colspan="15">
          <div class="gantt-line" style="margin-left:144px; width:48px;"></div>
        </td>
      </tr>
      <tr>
        <td>1:15 pm</td>
        <td>Test Event</td>
        <td>Home</td>
        <td class="gantt-section" colspan="15">
          <div class="gantt-line" style="margin-left:252px; width:48px;"></div>
        </td>
      </tr>
      <tr>
        <td>3:15 pm</td>
        <td>Chad event</td>
        <td>tu casa</td>
        <td class="gantt-section" colspan="15">
          <div class="gantt-line" style="margin-left:348px; width:72px;"></div>
        </td>
      </tr>
      <tr>
        <td>9:00 pm</td>
        <td>Randomness</td>
        <td>Random Hall</td>
        <td class="gantt-section" colspan="15">
          <div class="gantt-line" style="margin-left:624px; width:72px;"></div>
        </td>
      </tr>
    </tbody>
  </table>
</div>

Answer 2

function setVerticalBars() {

    var x = 0;
    
    // for each cell with a .time class
    $(".time").each(function() {

        // create the vertical line if it doesn't exist
        if (!$("#vertical-bar-" + x).length) {
            $(".mygantt").append('<div id="vertical-bar-' + x + '" class="vertical-bar"></div>');
        }

        // select the vertical bar associated to this cell
        var bar = $("#vertical-bar-" + x);

        // place it in he same position as the cell
        bar.css("left", $(this).position().left);

        // increase the counter to avoid duplicated id's
        x++;
    });
}

// adjust the divs on page load and when the page is resized
$(document).ready(setVerticalBars );
$(window).on("resize", setVerticalBars );

/* make the odd trs semitransparent instead of gray (so you can see the bars through them) */
.mytable>tbody>tr:nth-child(odd)>td {
    background:rgba(0,0,0,0.05) !important;
}

.mygantt .vertical-bar {
    width:1px;
    background:rgba(0,0,0,0.1);
    position:absolute;
    top:0;
    bottom:0;
}

/* Styles from question */
th.time, td.time {
    width:48px;
}

.gantt-chart {
    position:relative;
}

.gantt-line {
    background:blue;
    height:8px;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<script type="text/javascript" src="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
<link rel="stylesheet" type="text/css" href="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">

<div class="table-responsive gantt-chart mygantt">
    <table class="mytable table table-bordered table-striped">
        <tbody>
            <tr>
                <th>Time</th>
                <th>Event</th>
                <th>Location</th>
                <th class="time">8am</th>
                <th class="time">9</th>
                <th class="time">10</th>
                <th class="time">11</th>
                <th class="time">12</th>
                <th class="time">1</th>
                <th class="time">2</th>
                <th class="time">3</th>
                <th class="time">4</th>
                <th class="time">5</th>
                <th class="time">6</th>
                <th class="time">7</th>
                <th class="time">8</th>
                <th class="time">9</th>
                <th class="time">10pm</th>
            </tr>
            <tr>
                <td>11:00 am</td>
                <td>Awesome party</td>
                <td>Party room</td>
                <td class="gantt-section" colspan="15">
                    <div class="gantt-line" style="margin-left:144px; width:48px;"></div>
                </td>
            </tr>
            <tr>
                <td>1:15 pm</td>
                <td>Test Event</td>
                <td>Home</td>
                <td class="gantt-section" colspan="15">
                    <div class="gantt-line" style="margin-left:252px; width:48px;"></div>
                </td>
            </tr>
            <tr>
                <td>3:15 pm</td>
                <td>Chad event</td>
                <td>tu casa</td>
                <td class="gantt-section" colspan="15">
                    <div class="gantt-line" style="margin-left:348px; width:72px;"></div>
                </td>
            </tr>
            <tr>
                <td>9:00 pm</td>
                <td>Randomness</td>
                <td>Random Hall</td>
                <td class="gantt-section" colspan="15">
                    <div class="gantt-line" style="margin-left:624px; width:72px;"></div>
                </td>
            </tr>
        </tbody>
    </table>
</div>

当 <td> 具有不同的宽度时，使 <th> 垂直边框贯穿整个 table

Making <th> vertical borders continue through entire table when <td> have different width

html

css

html-table

twitter-bootstrap

bootstrap-table

编辑 - 以前的解决方案：