如何将数据表的水平滚动条放在表格的顶部？

Question

我有一个非常大的数据表，我想将水平滚动条放在表的顶部和底部，这样用户滚动起来会更容易（数据表有很多列）。有没有一种简单而正确的方法来实现这一目标？

原文由 msniezko 发布，翻译遵循 CC BY-SA 4.0 许可协议

Answer 1

您可以使用具有最大宽度的容器并将表格放入其中。

 <div class="large-table-container-1">
  <table>...</table>
</div>

根据您想要的可靠性，您可以：

A. Bottom scrollbar , 设置一个最大宽度和 overflow x 即可滚动：

 .large-table-container-1 {
  max-width: 200px;
  overflow-x: scroll;
  overflow-y: auto;
}

演示：

 .large-table-container-1 {
  max-width: 200px;
  overflow-x: scroll;
  overflow-y: auto;
}
.large-table-container-1 table {

}

/*misc*/
td {
  border: 1px solid gray;
}

th {
  text-align: left;
}

 <div class="large-table-container-1">
  <table>
    <thead>
      <tr>
        <th colspan="20">
          Bottom scrollbar:
        </th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td>00</td>
        <td>01</td>
        <td>02</td>
        <td>03</td>
        <td>04</td>
        <td>05</td>
        <td>06</td>
        <td>07</td>
        <td>08</td>
        <td>09</td>
        <td>00</td>
        <td>01</td>
        <td>02</td>
        <td>03</td>
        <td>04</td>
        <td>05</td>
        <td>06</td>
        <td>07</td>
        <td>08</td>
        <td>09</td>
      </tr>
    </tbody>
  </table>
</div>

B. Top scrollbar ，有点hacky，使用180度变换将滚动条旋转到顶部，然后再旋转180度将内容放回去。

 .large-table-container-2 {
  max-width: 200px;
  overflow-x: scroll;
  overflow-y: auto;
  transform:rotateX(180deg);
}

.large-table-container-2 table {
  transform:rotateX(180deg);
}

您可能希望使用特定于浏览器的前缀进行转换，例如 -webkit-transform:rotateX(180deg); 。

演示：

 .large-table-container-2 {
  max-width: 200px;
  overflow-x: scroll;
  overflow-y: auto;
  transform:rotateX(180deg);
}
.large-table-container-2 table {
  transform:rotateX(180deg);
}

/*misc*/
td {
  border: 1px solid gray;
}

th {
  text-align: left;
}

 <div class="large-table-container-2">
  <table>
    <thead>
      <tr>
        <th colspan="20">
          Top scrollbar:
        </th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td>00</td>
        <td>01</td>
        <td>02</td>
        <td>03</td>
        <td>04</td>
        <td>05</td>
        <td>06</td>
        <td>07</td>
        <td>08</td>
        <td>09</td>
        <td>00</td>
        <td>01</td>
        <td>02</td>
        <td>03</td>
        <td>04</td>
        <td>05</td>
        <td>06</td>
        <td>07</td>
        <td>08</td>
        <td>09</td>
      </tr>
    </tbody>
  </table>
</div>

C. 顶部和底部滚动条，更 hacky。需要一些javascript。使用上面的解决方案形式 A 并为顶部滚动条添加一个“假”div：

 <div class="large-table-fake-top-scroll-container-3">
  <div>&nbsp;</div>
</div>
<div class="large-table-container-3">
  <table>...</table>
</div>

.large-table-container-3 {
  max-width: 200px;
  overflow-x: scroll;
  overflow-y: auto;
}
.large-table-container-3 table {

}
.large-table-fake-top-scroll-container-3 {
  max-width: 200px;
  overflow-x: scroll;
  overflow-y: auto;
}
.large-table-fake-top-scroll-container-3 div {
  background-color: red;/*Just for test, to see the 'fake' div*/
  font-size:1px;
  line-height:1px;
}

还有一点 javascript 来捕获顶部假 div 上的滚动，然后使用 jQuery 滚动表格容器（反之亦然）：

 $(function() {
  var tableContainer = $(".large-table-container-3");
  var table = $(".large-table-container-3 table");
  var fakeContainer = $(".large-table-fake-top-scroll-container-3");
  var fakeDiv = $(".large-table-fake-top-scroll-container-3 div");

  var tableWidth = table.width();
  fakeDiv.width(tableWidth);

  fakeContainer.scroll(function() {
tableContainer.scrollLeft(fakeContainer.scrollLeft());
  });
})

演示：

 $(function() {
  var tableContainer = $(".large-table-container-3");
  var table = $(".large-table-container-3 table");
  var fakeContainer = $(".large-table-fake-top-scroll-container-3");
  var fakeDiv = $(".large-table-fake-top-scroll-container-3 div");

  var tableWidth = table.width();
  fakeDiv.width(tableWidth);

  fakeContainer.scroll(function() {
    tableContainer.scrollLeft(fakeContainer.scrollLeft());
  });
  tableContainer.scroll(function() {
    fakeContainer.scrollLeft(tableContainer.scrollLeft());
  });
})

 .large-table-container-3 {
  max-width: 200px;
  overflow-x: scroll;
  overflow-y: auto;
}
.large-table-container-3 table {

}
.large-table-fake-top-scroll-container-3 {
  max-width: 200px;
  overflow-x: scroll;
  overflow-y: auto;
}
.large-table-fake-top-scroll-container-3 div {
  background-color: red;
  font-size:1px;
  line-height:1px;
}

/*misc*/
td {
  border: 1px solid gray;
}

th {
  text-align: left;
}

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="large-table-fake-top-scroll-container-3">
  <div>&nbsp;</div>
</div>
<div class="large-table-container-3">
  <table>
    <thead>
      <tr>
        <th colspan="20">
          Top and bottom scrollbar:
        </th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td>00</td>
        <td>01</td>
        <td>02</td>
        <td>03</td>
        <td>04</td>
        <td>05</td>
        <td>06</td>
        <td>07</td>
        <td>08</td>
        <td>09</td>
        <td>00</td>
        <td>01</td>
        <td>02</td>
        <td>03</td>
        <td>04</td>
        <td>05</td>
        <td>06</td>
        <td>07</td>
        <td>08</td>
        <td>09</td>
      </tr>
    </tbody>
  </table>
</div>

所有三种解决方案的完整工作代码：

 $(function() {
  var tableContainer = $(".large-table-container-3");
  var table = $(".large-table-container-3 table");
  var fakeContainer = $(".large-table-fake-top-scroll-container-3");
  var fakeDiv = $(".large-table-fake-top-scroll-container-3 div");

  var tableWidth = table.width();
  fakeDiv.width(tableWidth);

  fakeContainer.scroll(function() {
    tableContainer.scrollLeft(fakeContainer.scrollLeft());
  });
  tableContainer.scroll(function() {
    fakeContainer.scrollLeft(tableContainer.scrollLeft());
  });
})

 /*Bottom scrollbar*/
.large-table-container-1 {
  max-width: 200px;
  overflow-x: scroll;
  overflow-y: auto;
}
.large-table-container-1 table {

}

/*Top scrollbar*/
.large-table-container-2 {
  max-width: 200px;
  overflow-x: scroll;
  overflow-y: auto;
  transform:rotateX(180deg);
}
.large-table-container-2 table {
  transform:rotateX(180deg);
}

/*Top and bottom scrollbar*/
.large-table-container-3 {
  max-width: 200px;
  overflow-x: scroll;
  overflow-y: auto;
}
.large-table-container-3 table {

}
.large-table-fake-top-scroll-container-3 {
  max-width: 200px;
  overflow-x: scroll;
  overflow-y: auto;
}
.large-table-fake-top-scroll-container-3 div {
  background-color: red;
  font-size:1px;
  line-height:1px;
}

/*misc*/
td {
  border: 1px solid gray;
}

th {
  text-align: left;
}

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="large-table-container-1">
  <table>
    <thead>
      <tr>
        <th colspan="20">
          Bottom scrollbar:
        </th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td>00</td>
        <td>01</td>
        <td>02</td>
        <td>03</td>
        <td>04</td>
        <td>05</td>
        <td>06</td>
        <td>07</td>
        <td>08</td>
        <td>09</td>
        <td>00</td>
        <td>01</td>
        <td>02</td>
        <td>03</td>
        <td>04</td>
        <td>05</td>
        <td>06</td>
        <td>07</td>
        <td>08</td>
        <td>09</td>
      </tr>
    </tbody>
  </table>
</div>

<div class="large-table-container-2">
  <table>
    <thead>
      <tr>
        <th colspan="20">
          Top scrollbar:
        </th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td>00</td>
        <td>01</td>
        <td>02</td>
        <td>03</td>
        <td>04</td>
        <td>05</td>
        <td>06</td>
        <td>07</td>
        <td>08</td>
        <td>09</td>
        <td>00</td>
        <td>01</td>
        <td>02</td>
        <td>03</td>
        <td>04</td>
        <td>05</td>
        <td>06</td>
        <td>07</td>
        <td>08</td>
        <td>09</td>
      </tr>
    </tbody>
  </table>
</div>

<div class="large-table-fake-top-scroll-container-3">
  <div>&nbsp;</div>
</div>
<div class="large-table-container-3">
  <table>
    <thead>
      <tr>
        <th colspan="20">
          Top and bottom scrollbar:
        </th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td>00</td>
        <td>01</td>
        <td>02</td>
        <td>03</td>
        <td>04</td>
        <td>05</td>
        <td>06</td>
        <td>07</td>
        <td>08</td>
        <td>09</td>
        <td>00</td>
        <td>01</td>
        <td>02</td>
        <td>03</td>
        <td>04</td>
        <td>05</td>
        <td>06</td>
        <td>07</td>
        <td>08</td>
        <td>09</td>
      </tr>
    </tbody>
  </table>
</div>

原文由 Aleris 发布，翻译遵循 CC BY-SA 3.0 许可协议