是否可以“转移”从一个操作到另一个操作的 ASP.NET MVC 请求？

发布于 2024-08-03 04:52:21 字数 1038 浏览 5 评论 0原文

假设我有以下操作：

public ActionResult DoSomething()
{
    // Some business logic
    return RedirectToAction("AnotherAction", RouteData.Values);
}

public ActionResult AnotherAction(string name, int age)
{
   ...
}

以及以下表单：

<form method="post" action="DoSomething">
    <input name="name" type="text" />
    <input name="age" type="text" />
    <input type="submit" value="Go" />
</form>

点击该表单上的提交将转到 DoSomething 操作，然后转到 AnotherAction - 传递所有相关值分为姓名和年龄。这是一种享受！

但是我显然无法访问AnotherAction中的任何其他提交的表单值，因为从DoSomething重定向时它们会丢失：

public ActionResult AnotherAction(string name, int age)
{
   // This won't work
   var other = Request.Form["SomeDynamicVariable"];
}

更理想的是TransferToAction > 方法，重新运行 MVC 引擎“想象”表单已发布到 AnotherAction：

return TransferToAction("AnotherAction");

我可以这样做吗？

如果这个功能不能开箱即用，那么我会制作它，在博客上发布它！

原文

Suppose I have the following actions:

public ActionResult DoSomething()
{
    // Some business logic
    return RedirectToAction("AnotherAction", RouteData.Values);
}

public ActionResult AnotherAction(string name, int age)
{
   ...
}

And the following form:

<form method="post" action="DoSomething">
    <input name="name" type="text" />
    <input name="age" type="text" />
    <input type="submit" value="Go" />
</form>

Hitting submit on that form will go to the DoSomething action, and in turn to AnotherAction - passing in all the relevant values into name and age. It works a treat!

But I obviously cannot access any other submitted form values in AnotherAction, because they are lost when redirecting from DoSomething:

public ActionResult AnotherAction(string name, int age)
{
   // This won't work
   var other = Request.Form["SomeDynamicVariable"];
}

What would be more ideal is a TransferToAction method, that re-runs the MVC engine "imagining" the form had been posted to AnotherAction instead:

return TransferToAction("AnotherAction");

Can I do this?

If this functionality is not available out-of-the-box, then I'll make it, blog it and post it!

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坏尐絯℡ 2024-08-10 04:52:21

使用 TempData 构造来存储 Request.Form。 TempData 仅适用于给定的请求，因此处理完成后它将被清除。

public ActionResult DoSomething()
{
    // Some business logic
    TempData["PostedFormValues"] = Request.Form;
    return RedirectToAction("AnotherAction", RouteData.Values);
}

public ActionResult AnotherAction(string name, int age)
{
   ...
   if (TempData["PostedFormValues"] != null)
   {
       //process here
   }
}

Use the TempData construct to store the Request.Form. TempData is only around for the given request, so it will be cleared after the processing is finished.

public ActionResult DoSomething()
{
    // Some business logic
    TempData["PostedFormValues"] = Request.Form;
    return RedirectToAction("AnotherAction", RouteData.Values);
}

public ActionResult AnotherAction(string name, int age)
{
   ...
   if (TempData["PostedFormValues"] != null)
   {
       //process here
   }
}

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锦爱 2024-08-10 04:52:21

您的控制器操作也是有效的公共函数
因此，当您现在从 AnotherAction 访问 Request 对象时，您可以执行此操作，

public ActionResult DoSomething(){    
// Some business logic    
// Get Params from Request
      return AnotherAction(name, age);
}

public ActionResult AnotherAction(string name, int age){
   ...
}

它仍然是相同的，因为您显然没有发出另一个请求。

your controller actions are also valid public functions
so you can do this

public ActionResult DoSomething(){    
// Some business logic    
// Get Params from Request
      return AnotherAction(name, age);
}

public ActionResult AnotherAction(string name, int age){
   ...
}

when you now access the Request object from AnotherAction it is still the same because you obviously didn't made another request.

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