我尝试添加字段并使用事件侦听器为其提供数据。新数据的值取决于相同表单中其他提交字段的数据，因此我使用Symfony 2。我没有在class TaskType extends AbstractType
{
/**
* {@inheritdoc}
*/
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('name')
->addEventListener(FormEvents::PRE_SUBMIT, function (FormEvent $event) {
$form = $event->getForm();
$form->add('country', null, array('data' => 'españa'));
});
}
上尝试，所以我也不知道结果是否也一样。
Task问题：新数据（国家/地区）永远不会保留。我做错了什么？
这里有class Task
{
/**
* @ORM\Id
* @ORM\Column(type="integer")
* @ORM\GeneratedValue(strategy="AUTO")
*/
protected $id;
/**
* @ORM\Column(type="string", length=255, name="name", nullable=true)
*/
protected $name;
/**
* @ORM\Column(type="string", length=255, name="country", nullable=true)
*/
protected $country;
public function __toString()
{
return $this->name;
}
/**
* Get id
*
* @return integer
*/
public function getId()
{
return $this->id;
}
/**
* Set name
*
* @param string $country
*
* @return Manufacturer
*/
public function setCountry($country)
{
$this->country = $country;
return $this;
}
/**
* Get country
*
* @return string
*/
public function getCountry()
{
return $this->country;
}
/**
* Set name
*
* @param string $name
*
* @return Manufacturer
*/
public function setName($name)
{
$this->name = $name;
return $this;
}
/**
* Get name
*
* @return string
*/
public function getName()
{
return $this->name;
}
}
实体：
using System;
namespace Calculator
{
class Program
{
public static void Main(string[] args)
{
public int number01;
public int number02;
public int Number03
{
get
{
return number02 / number01;
}
}
class Program1 : Program
{
public int DivideFinal()
{
Console.Write("Enter a number to be divided: ");
Console.ReadKey();
number01 = Convert.ToInt32(Console.ReadKey());
Console.WriteLine("Enter another number to be divided");
number02 = Convert.ToInt32(Console.ReadKey());
Console.WriteLine("The result is: " + Number03);
Console.ReadKey();
}