鼠标悬停时高亮显示表格行

Highlighting a table row on mouse hover

本文关键字：表格 显示 高亮 悬停 鼠标      更新时间：2023-09-26

我正在javascript调用中创建一个表，并通过选择链接的页面上的iframe显示数据。当用户悬停在一行上时，我试图突出显示一个表行。我向表中添加了一个类，然后添加了后续的css代码，但在表出现的那一行出现了解析错误。关于如何清除它，有什么想法吗？

<!DOCTYPE HTML>
<html lang = "en">
  <head>
    <link rel="stylesheet" type="text/css" href="mystylesheet.css">
    <title>Tech Order Department.html</title>
    <meta charset = "UTF-8" />

</head>
<body>

    <h2>Completed Projects</h2>
<br>
<?php
$servername = "localhost";
$username = "xxx";
$password = "xxx";
$dbname = "xxx";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
     die("Connection failed: " . $conn->connect_error);
} 
//Set up and run my Query
$sql = "SELECT Project, Client, DateReceived, LastName, FinalReviewDate, DateDelivered, DateAccepted FROM Projects
              WHERE DateAccepted IS NOT NULL
              ORDER BY DateAccepted DESC";
$result = $conn->query($sql);
//Display results
if ($result->num_rows > 0) {
     echo "<table class="hoverTable"><tr><th>Client</th><th>Project</th><th>Point of Contact</th><th>Date Project Received</th><th>Final Review Date</th><th>Date Delivered</th><th>Date Accepted</th></tr>";
     // output data of each row
     while($row = $result->fetch_assoc()) {
         echo "<tr><td>" . $row["Client"]. "</td><td>" . $row["Project"]. "</td><td> " . $row["LastName"]. "</td><td> " . $row["DateReceived"]. "</td><td> " . $row["FinalReviewDate"]. "</td><td> " . $row["DateDelivered"]. "</td><td> " . $row["DateAccepted"]. "</td></tr>";
     }
     echo "</table>";
} else {
     echo "0 results";
}
$conn->close();
?> 
  </body>
</html>

除非有其他问题，否则以下样式规则：

.hoverTable tr:hover {
background-color: rgba(255, 255, 0, 1);
}

应该可以完美工作。

[ADDED]

我现在更了解这个问题了。

您需要对HTML中的引号进行转义，这样解析器就不会将它们误认为PHP引号。试试这个：

echo "<table class='"hoverTable'">";

或者您可以（简单地）在PHP中使用单引号，在HTML中使用双引号，如下所示：

echo '<table class="hoverTable">';

=====

CSS示例&HTML在一起：

.hoverTable tr:hover {
background-color: rgba(255, 255, 0, 1);
}
<table class="hoverTable">
  
<tr>
<th>Client</th>
<th>Project</th>
<th>Point of Contact</th>
<th>Date Project Received</th>
<th>Final Review Date</th>
<th>Date Delivered</th>
<th>Date Accepted</th>
</tr>
<tr>
<td>Client1</td>
<td>Project1</td>
<td>LastName1</td>
<td>DateReceived1</td>
<td>FinalReviewDate1</td>
<td>DateDelivered1</td>
<td>DateAccepted1</td>
</tr>
  
<tr>
<td>Client2</td>
<td>Project2</td>
<td>LastName2</td>
<td>DateReceived2</td>
<td>FinalReviewDate2</td>
<td>DateDelivered2</td>
<td>DateAccepted2</td>
</tr>
  
<tr>
<td>Client3</td>
<td>Project3</td>
<td>LastName3</td>
<td>DateReceived3</td>
<td>FinalReviewDate3</td>
<td>DateDelivered3</td>
<td>DateAccepted3</td>
</tr>
  
<tr>
<td>Client4</td>
<td>Project4</td>
<td>LastName4</td>
<td>DateReceived4</td>
<td>FinalReviewDate4</td>
<td>DateDelivered4</td>
<td>DateAccepted4</td>
</tr>
  
<tr>
<td>Client5</td>
<td>Project5</td>
<td>LastName5</td>
<td>DateReceived5</td>
<td>FinalReviewDate5</td>
<td>DateDelivered5</td>
<td>DateAccepted5</td>
</tr>
  
</table>

相关文章：