Question

我编写了这样的代码来选择所提取数据中的所有复选框

 <input type="checkbox" name="select-all" id="select-all" />
    <?php
    while ($row = mysql_fetch_array($users)) {
?> 
<tr>
 <td><span><?php echo $row["id"] ?></span></td>
<td><span><?php echo $row["emailid"] ?></span></td>
<td><span class="wrapper"><input type="checkbox" name="sendmsg[]"  value="<?php echo $row["emailid"] ?>"/></span></td>
</tr>
 <?php } ?>

我写过这样的java脚本

  $('#select-all').click(function(event) {   
    if(this.checked) {
    // Iterate each checkbox
    $('#sendmsg[]').each(function() {
        this.checked = true;                        
       });
        }
      });

如何编写corect脚本以选中所有复选框

Answer 1

function toggle(source) {
    checkboxes = document.getElementsByName('checkbox[]');
    if (x = 1) {
        for (var i = 0, n = checkboxes.length; i < n; i++) {
            checkboxes[i].checked = source.checked;
        }
    }
}

<input type="checkbox"  onClick="toggle(this)" />
<input name="checkbox[]"    type="checkbox"  >
<input name="checkbox[]"    type="checkbox"  >
<input name="checkbox[]"    type="checkbox"  >

试试这个

function toggle(source) {
    checkboxes = document.getElementsByName('sendmsg[]');
    
        for (var i = 0, n = checkboxes.length; i < n; i++)        {
            checkboxes[i].checked = source.checked;
        
       }
}

<input type="checkbox" name="select-all" id="select-all" onClick="toggle(this)" />
        <?php
        while ($row = mysql_fetch_array($users)) {
    ?> 
    <tr>
     <td><span><?php echo $row["id"] ?></span></td>
    <td><span><?php echo $row["emailid"] ?></span></td>
    <td><span class="wrapper"><input type="checkbox" name="sendmsg[]"  value="<?php echo $row["emailid"]; ?></span></td>
    </tr>
     <?php } ?>

Answer 2

按名称获取元素，如果您使用＃，则按ID

使用其元素

$('#select-all').click(function(event) {   
    if(this.checked) {
    // Iterate each checkbox
    $('[name="sendmsg[]"]').each(function() {
        this.checked = true;                        
       });
        }
      });

如何通过选中一个复选框来选中标记所有checkbocx

2 个答案: