javascript - 如何根据下拉选择的值过滤 html 表？

Question

我有一个 html 表，其中包含一些数据行，其中有一列名为状态。他们有三种状态，正在进行中，待办，已完成。我在顶部有一个下拉菜单。下拉列表包含 Any、In progress、To do、Completed。如何根据选定的下拉值加载数据。下面我附上了我的页面图片。

我的代码在下面。表格数据来自数据库。

<div class="table-wrapper">
    <div class="table-title">
    </div>
        <div class="table-filter">
            <div class="row">
                <div class="col-sm-3">
                    <div class="show-entries">
                        <span>Show</span>
                        <select class="form-control">
                            <option>5</option>
                            <option>10</option>
                        </select>
                        <span>entries</span>
                    </div>
                </div>
                <div class="col-sm-9">
                    <div class="filter-group">
                        <label>Status</label>
                        <select class="form-control">
                            <option>Any</option>
                            <option>Completed</option>
                            <option>In Progress</option>
                            <option>To Run</option>
                        </select>
                    </div>
                <span class="filter-icon"><i class="fa fa-filter"></i></span>
                </div>
            </div>
        </div>
    <form method="post" action="activeInactive.php">
        <table class="paginated table table-striped table-hover">
            <thead>
                <tr>
                    <th>Test Name</th>
                    <th>Created By</th>
                    <th>Last updated</th>
                    <th>Test status</th>
                    <th>Actions</th>
                </tr>
            </thead>
            <tbody id="test_table">

                <?PHP

                $test_access = 0;
                while($row = mysqli_fetch_array($tests_under_user)){    
                    echo '<td width=250px; title="'.$testName.'"><a href="">'.$row['name'].'</a></td>';
                    echo '<td title="'.$row['created'].'">'.$row['created'].'</td>';
                    echo '<td title="'.$row['edited'].'">'.$row['edited'].'</td>';
                    echo '<td>In Progress</td>';
                    echo '<td>';
                    echo '<a href="" class="edit" data-toggle="modal"><i class="material-icons" data-toggle="tooltip" title="Edit">&#xE254;</i></a>';   
                    echo '<a href="" class="delete" name="delete" data-toggle="modal" Onclick="return ConfirmDelete()"><i class="material-icons" data-toggle="tooltip" title="Delete">&#xE872;</i></a>';
                    echo '<a href="" class="copy" name="copy" data-toggle="modal"><i class="material-icons" data-toggle="tooltip" title="Copy" style="color: #2874A6">file_copy</i></a>';
                    echo '</td>';
                }
                ?>
            </tbody>
        </table>
    </form>
</div>

Answer 1

这可能对您有所帮助。

Visit here to try filtering with select tag.

function myFunction() {
  var input, filter, table, tr, td, i;
  input = document.getElementById("mylist");
  filter = input.value.toUpperCase();
  table = document.getElementById("myTable");
  tr = table.getElementsByTagName("tr");
  for (i = 0; i < tr.length; i++) {
    td = tr[i].getElementsByTagName("td")[0];
    if (td) {
      if (td.innerHTML.toUpperCase().indexOf(filter) > -1) {
        tr[i].style.display = "";
      } else {
        tr[i].style.display = "none";
      }
    }       
  }
}

* {
  box-sizing: border-box;
}

#myInput {
  background-image: url('/css/searchicon.png');
  background-position: 10px 10px;
  background-repeat: no-repeat;
  width: 100%;
  font-size: 16px;
  padding: 12px 20px 12px 40px;
  border: 1px solid #ddd;
  margin-bottom: 12px;
}

#mylist {
  
  background-position: 10px 10px;
  background-repeat: no-repeat;
  width: 100%;
  font-size: 16px;
  padding: 12px 20px 12px 40px;
  border: 1px solid #ddd;
  margin-bottom: 12px;
}

#myTable {
  border-collapse: collapse;
  width: 100%;
  border: 1px solid #ddd;
  font-size: 18px;
}

#myTable th, #myTable td {
  text-align: left;
  padding: 12px;
}

#myTable tr {
  border-bottom: 1px solid #ddd;
}

#myTable tr.header, #myTable tr:hover {
  background-color: #f1f1f1;
}

<h2>My Customers</h2>
<select id="mylist" onchange="myFunction()" class='form-control'>
<option>A</option>
<option>b</option>
<option>c</option>
</select>


<table id="myTable">
  <tr class="header">
    <th style="width:60%;">Name</th>
    <th style="width:40%;">Country</th>
  </tr>
  <tr>
    <td>Alfreds Futterkiste</td>
    <td>Germany</td>
  </tr>
  <tr>
    <td>Berglunds snabbkop</td>
    <td>Sweden</td>
  </tr>
  <tr>
    <td>Island Trading</td>
    <td>UK</td>
  </tr>
  <tr>
    <td>Koniglich Essen</td>
    <td>Germany</td>
  </tr>
  <tr>
    <td>Laughing Bacchus Winecellars</td>
    <td>Canada</td>
  </tr>
  <tr>
    <td>Magazzini Alimentari Riuniti</td>
    <td>Italy</td>
  </tr>
  <tr>
    <td>North/South</td>
    <td>UK</td>
  </tr>
  <tr>
    <td>Paris specialites</td>
    <td>France</td>
  </tr>
</table>