javascript - 搜索特定的 html 表格列

Question

你好，有人可以帮我解决这个问题吗？搜索正在进行中 但我如何排除要搜索的最后一列？ 我有三列，名字、姓氏和电子邮件。

我想要的是仅使用两列进行搜索。并在搜索时排除列电子邮件。谢谢 这是我的 JavaScript 代码

<script type="text/javascript">
        function doSearch() {
            var searchText = document.getElementById('searchTerm').value;
            var targetTable = document.getElementById('report');
            var targetTableColCount;

            //Loop through table rows
            for (var rowIndex = 0; rowIndex < targetTable.rows.length; rowIndex++ ) {
                var rowData = '';

                //Get column count from header row
                if (rowIndex == 0) {
                    targetTableColCount = targetTable.rows.item(rowIndex).cells.length;
                    continue; //do not execute further code for header row.
                }

                //Process data rows. (rowIndex >= 1)
                for (var colIndex = 0; colIndex < targetTableColCount; colIndex++) {
                    var cellText = '';

                    if (navigator.appName == 'Microsoft Internet Explorer')
                        cellText = targetTable.rows.item(rowIndex).cells.item(colIndex).innerText;
                    else
                        cellText = targetTable.rows.item(rowIndex).cells.item(colIndex).textContent;

                    rowData += cellText;
                }

                // Make search case insensitive.
                rowData = rowData.toLowerCase();
                searchText = searchText.toLowerCase();

                //If search term is not found in row data
                //then hide the row, else show
                if (rowData.indexOf(searchText) == -1)
                    targetTable.rows.item(rowIndex).style.display = 'none';
                else
                    targetTable.rows.item(rowIndex).style.display = 'table-row';
            }
        }
    </script>

这是我的 html 代码

<input id="searchTerm" class="form-control" placeholder="Enter text" onkeyup="doSearch()">  
  <table id="report" class="table">
    <thead>
      <tr>
        <th>Firstname</th>
        <th>Lastname</th>
        <th>Email</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td>John</td>
        <td>Doe</td>
        <td>john@example.com</td>
      </tr>
      <tr>
        <td>Mary</td>
        <td>Moe</td>
        <td>mary@example.com</td>
      </tr>
      <tr>
        <td>July</td>
        <td>Dooley</td>
        <td>july@example.com</td>
      </tr>
    </tbody>
  </table>

我还有一个问题。我在 html 表格上添加了一个可扩展行 现在搜索没有给出所需的输出。例如，当我搜索不在 html 表中的值时，它只会删除第一行并显示该行的其余部分。这不是正确的输出。

<table id="report" class="table">
    <thead>
      <tr>
        <th>Firstname</th>
        <th>Lastname</th>

        <th>Email</th>
        <th></th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td>John</td>
        <td>Doe</td>
        <td>john@example.com</td>
        <td>
        <div class="arrow"><a id="menu-toggle" href="#" ><i class="glyphicon glyphicon-plus-sign"></i></a></div>
        </td>
      </tr>
      <tr><td colspan="4">
        <button type="button" class="btnview btn btn-xs btn-warning"  >
            <span class="glyphicon glyphicon-remove-circle" aria-hidden="true"></span>View
        </button>
      </td>
      </tr>

      <tr>
        <td>Mary</td>
        <td>Moe</td>
        <td>mary@example.com</td>
        <td>
        <div class="arrow"><a id="menu-toggle" href="#" ><i class="glyphicon glyphicon-plus-sign"></i></a></div>
        </td>
      </tr>
      <tr><td colspan="4">
        <button type="button" class="btnview btn btn-xs btn-warning"  >
            <span class="glyphicon glyphicon-remove-circle" aria-hidden="true"></span>View
        </button>
      </td>
      </tr>
      <tr>
        <td>July</td>
        <td>Dooley</td>
        <td>july@example.com</td>
        <td>
        <div class="arrow"><a id="menu-toggle" href="#" ><i class="glyphicon glyphicon-plus-sign"></i></a></div>
        </td>
      </tr>
      <tr><td colspan="4">
        <button type="button" class="btnview btn btn-xs btn-warning"  >
            <span class="glyphicon glyphicon-remove-circle" aria-hidden="true"></span>View
        </button>
      </td>
      </tr>
    </tbody>
  </table>

罗马先生，将您的代码集成到我的代码后。搜索现在正在按预期进行。但是当搜索词输入为空并且我按退格键时。就变成这样了

https://jsfiddle.net/t6xg97uo/

Answer 1

我相信这应该可以回答您的问题。我只是调整您要搜索的列数:

            for (var colIndex = 0; colIndex < (targetTableColCount-1); colIndex++) {

这是一个例子:

http://codepen.io/anon/pen/PNWNmL

更新

好吧，我不确定这是否是您正在寻找的内容的正确修复，但我只是注释掉了导致退格时显示该按钮的代码。这是我所做的:

<tbody>
  <tr>
    <td>John</td>
    <td>Doe</td>
    <td>john@example.com</td>
    <td>
    <div class="arrow"><a id="menu-toggle" href="#" ><i class="glyphicon glyphicon-plus-sign"></i></a></div>
    </td>
  </tr>
  <tr>
    <!-- <td colspan="4">
            <button type="button" class="btnview btn btn-xs btn-warning"  >
        <span class="glyphicon glyphicon-remove-circle" aria-hidden="true"></span>View
            </button>
          </td> -->
  </tr>

  <tr>
    <td>Mary</td>
    <td>Moe</td>
    <td>mary@example.com</td>
    <td>
    <div class="arrow"><a id="menu-toggle" href="#" ><i class="glyphicon glyphicon-plus-sign"></i></a></div>
    </td>
  </tr>
  <tr>
    <!-- <td colspan="4">
            <button type="button" class="btnview btn btn-xs btn-warning"  >
        <span class="glyphicon glyphicon-remove-circle" aria-hidden="true"></span>View
            </button>
          </td> -->
  </tr>
  <tr>
    <td>July</td>
    <td>Dooley</td>
    <td>july@example.com</td>
    <td>
    <div class="arrow"><a id="menu-toggle" href="#" ><i class="glyphicon glyphicon-plus-sign"></i></a></div>
    </td>
  </tr>
  <tr>
    <!-- <td colspan="4">
            <button type="button" class="btnview btn btn-xs btn-warning"  >
        <span class="glyphicon glyphicon-remove-circle" aria-hidden="true"></span>View
            </button>
          </td> -->
  </tr>
</tbody>

这是一个 jsfiddle:

https://jsfiddle.net/t6xg97uo/1/