这是我的控制器代码：

public function edit_manpower($Manpower_id=null)
{
$session = session();
$db = \Config\Database::connect();
$builder = $db->table('Manpower');
$builder->select('Manpower.*');
$builder->where('Manpower_id', $Manpower_id);
$query = $builder->get();
$data['row'] = $query->getResultArray();
return view("admin/update_manpower_form",$data);  
}

这是出现错误的视图代码：

<form action = "<?php echo site_url('Admin/updatemanpower/'.$row['Manpower_id']);?>" method= 
"post" enctype="multipart/form-data">
<input type="hidden" name="_method" value="PUT"/> 
<div class="form-group">
 <div class=required-field><label for="Name">NAME:</label></div>
 <input type="text" class="form-control" placeholder="Enter name" id="Name" value="<?php echo 
 $row['Name'];?>" name="Name" autocomplete="off">
</div>
<br>
<div class="form-group">
<div class=required-field><label for="Contact_no">CONTACT NUMBER:</label></div>
  <input type="text" class="form-control" placeholder="Enter phone number" id="Contact_no" 
  value="<?php echo $row['Contact_no'];?>" name="Contact_no" autocomplete="off">
</div>
<br>

当我将下面的行放在视图的顶部时，将显示所需的数据：

<?php var_dump($row); ?>

显示的错误消息为：

Undefined array key "Manpower_id"
APPPATH\Views\admin\update_manpower_form.php at line 65
64   <br><br>
65   <form action = "<?php echo site_url('Admin/updatemanpower/'.$row['Manpower_id']);?>" 
     method= "post" enctype="multipart/form-data">
66   <input type="hidden" name="_method" value="PUT"/>

我找不到我做错了什么。请帮助我。