javascript - 如何主要使用CSS创建具有固定 header **和**固定列的html <table>

我真的很幸运，在滚动时应用了CSS转换，以拥有固定的表头。但是现在我想在水平滚动以固定列时尝试相同的技术。

我遇到的问题是，水平滚动时，标题中的固定列显示在后面而不是顶部。浏览器正在确定转换后哪些DOM元素应位于顶部。我可以做些什么来控制它？ (是的，我尝试过z-index)

演示

(function() {
  var app = angular.module("soDemo", []);
  app.controller("soDemoController", SoDemoController);

  SoDemoController.$inject = ['$scope', '$document'];

  function SoDemoController($scope, $document) {
    var vm = {
      data: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
    };

    $scope.vm = vm;
    $('.table-container').on('scroll', onScroll);

    return;

    /////////// IMPLEMENATION ////////
    function onScroll() {
      var translate = "translate(0," + this.scrollTop + "px)";
      $("table thead th:not(.pinned)").css('transform', translate);

      translate = "translate(" + this.scrollLeft + "px,0)";
      $("table tbody .pinned").css('transform', translate);

      translate = "translate(" + this.scrollLeft + "px," + this.scrollTop + "px)";
      $("table thead th.pinned").css('transform', translate);
    }
  }
})();

.table-container {
  overflow: auto;
  height: 200px;
  width: 300px
}

table {
  table-layout: fixed;
  border-spacing: 0;
}

td {
  padding: 3px;
  white-space: nowrap;
  border-right: 1px solid #ccc;
}

th {
  background: #999;
}

th.pinned {
  background: #ccc;
}

td.pinned {
  background: #eee;
}

input {
  margin-top: 20px;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.1/angular.js"></script>

<div class="sample" ng-app="soDemo" ng-controller="soDemoController">
  <p>When you scroll horizontally, the header row scrolls on top of col0 and col1 instead of behind it.</p>
  <p>When you scroll vertically, the tbody cells render over top of Col 0 and Col 1 headers instead of behind it</p>
  <div class="table-container">
    <table>
      <thead>
        <tr>
          <th class="pinned">Col 0</th>
          <th class="pinned">Col 1</th>
          <th>Col 2</th>
          <th>Col 3</th>
          <th>Col 4</th>
          <th>Col 5</th>
          <th>Col 6</th>
          <th>Col 7</th>
          <th>Col 8</th>
          <th>Col 9</th>
        </tr>
      </thead>
      <tbody>
        <tr ng-repeat="item in vm.data">
          <td class="pinned">Data {{item}}</td>
          <td class="pinned">Data {{item}}</td>
          <td>Data {{item}}</td>
          <td>Data {{item}}</td>
          <td>Data {{item}}</td>
          <td>Data {{item}}</td>
          <td>Data {{item}}</td>
          <td>Data {{item}}</td>
          <td>Data {{item}}</td>
          <td>Data {{item}}</td>
        </tr>
      </tbody>
    </table>
  </div>
</div>

最佳答案

我认为这仍然是z-index问题。

感谢@ sascha10000，他们让我开始思考丢失的内容。如果您在CSS中将position: relative添加到th.pinned类中，并且还添加了一个正z-index。 (即z-index:20)似乎有效。

(function() {
  var app = angular.module("soDemo", []);
  app.controller("soDemoController", SoDemoController);

  SoDemoController.$inject = ['$scope', '$document'];

  function SoDemoController($scope, $document) {
    var vm = {
      data: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
    };

    $scope.vm = vm;
    $('.table-container').on('scroll', onScroll);

    return;

    /////////// IMPLEMENATION ////////
    function onScroll() {
      var translate = "translate(0," + this.scrollTop + "px)";
      $("table thead th:not(.pinned)").css('transform', translate);

      translate = "translate(" + this.scrollLeft + "px,0)";
      $("table tbody .pinned").css('transform', translate);

      translate = "translate(" + this.scrollLeft + "px," + this.scrollTop + "px)";
      $("table thead th.pinned").css('transform', translate);
    }
  }
})();

.table-container {
  overflow: auto;
  height: 200px;
  width: 300px
}

table {
  table-layout: fixed;
  border-width: 0;
  border-spacing: 0;
}

td {
  padding: 3px;
  white-space: nowrap;
  border-right: 1px solid #ccc;
}

th {
  background: #999;
}

th.pinned {
  position: relative; /**** <===  added this ****/
  z-index: 20;        /**** <===  added this ****/
  background: #ccc;
}

td.pinned {
  background: #eee;
}

input {
  margin-top: 20px;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.1/angular.js"></script>

<div class="sample" ng-app="soDemo" ng-controller="soDemoController">
  <p>When you scroll horizontally, the header row scrolls on top of col0 and col1 instead of behind it.</p>
  <p>When you scroll vertically, the tbody cells render over top of Col 0 and Col 1 headers instead of behind it</p>
  <div class="table-container">
    <table>
      <thead>
        <tr>
          <th class="pinned">Col 0</th>
          <th class="pinned">Col 1</th>
          <th>Col 2</th>
          <th>Col 3</th>
          <th>Col 4</th>
          <th>Col 5</th>
          <th>Col 6</th>
          <th>Col 7</th>
          <th>Col 8</th>
          <th>Col 9</th>
        </tr>
      </thead>
      <tbody>
        <tr ng-repeat="item in vm.data">
          <td class="pinned">Data {{item}}</td>
          <td class="pinned">Data {{item}}</td>
          <td>Data {{item}}</td>
          <td>Data {{item}}</td>
          <td>Data {{item}}</td>
          <td>Data {{item}}</td>
          <td>Data {{item}}</td>
          <td>Data {{item}}</td>
          <td>Data {{item}}</td>
          <td>Data {{item}}</td>
        </tr>
      </tbody>
    </table>
  </div>
</div>