Question

目标：
使用HTTP减少与Actionresult相关的代码副本。

问题：
我有两个与Actionresult（使用HTTP）的actionresult，它具有相同的代码源代码。

我应该如何启用代码“ModelState.AddmodelError” 在这种情况下，两个动作都没有代号的公开吗？

的信息：
*请记住这个代码是大项目的一个简单示例 *我使用asp.net mvc 4
*今天我重构了一个源代码，以便减少代码的出现 *采取两种不同行动的原因很长，但现在正在进行重构

今天的源代码：

  [HttpPost]
    public ActionResult Add(AddUserVM model)  
    {
        if(model.FirstName == model.LastName)
        {
            ModelState.AddModelError("LastName", "The last name cannot be the same as the first name.");
        }
        if(!ModelState.IsValid)
        {
            return View(model);
        }
        return RedirectToAction("Index");
    }

[HttpPost]
public ActionResult Add_dd(AddUserVM model)  
{
    if(model.FirstName == model.LastName)
    {
        ModelState.AddModelError("LastName", "The last name cannot be the same as the first name.");
    }
    if(!ModelState.IsValid)
    {
        return View(model);
    }
    return RedirectToAction("Index");
}

Proposal that is might not working:

public ActionResult Add(AddUserVM model)  
{
    model = Test1(model);

    if(!ModelState.IsValid)
    {
        return View(model);
    }

    return RedirectToAction("Index");
}

[HttpPost]
public ActionResult Add_dd(AddUserVM model)  
{
    model = Test1(model);

    if(!ModelState.IsValid)
    {
        return View(model);
    }

    return RedirectToAction("Index");
}

private model Test1(AddUserVM model)
{

    if(model.FirstName == model.LastName)
    {
        ModelState.AddModelError("LastName", "The last name cannot be the same as the first name.");
    }

    return ""
}

public class AddUserVM  
{
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public string EmailAddress { get; set; }
}

Answer 1

而不是ModelState您可以使用ViewBag或ViewData删除重复。

    public ActionResult Add(AddUserVM model)  
    {
       model = Test1(model);

      if(!ModelState.IsValid)
      {
        return View(model);
      }

    return RedirectToAction("Index");
}

     [HttpPost]
     public ActionResult Add_dd(AddUserVM model)  
     {
        Test1(model);

        if(!ModelState.IsValid)
        {
            return View(model);
         }

       return RedirectToAction("Index");
    }

private void Test1(AddUserVM model)
{

    if(model.FirstName == model.LastName)
    {
        ViewBag.ErrorMessage ="The last name cannot be the same as the first name.";
    }    

}

使用HTTP减少ActionResult中代码的重复

1 个答案: