如何在httpPost方法中使用另一个类

Question

在MVC中我的控制器（HomeController.cs）我有一个使用模型（ModelVariables）的httpPost actionResult方法（Battle），除了当我尝试从一个void方法不同类（Intermediary.cs），

我想要做什么：正确，我httpPost的ActionResult（战斗）添加任何空隙的方法和正常运行，这里是我的代码：

控制器（HomeController.cs）：

[HttpGet] 
    public ActionResult Index() 
    { 
     ModelVariables model = new ModelVariables() 
     { 

      CheckBoxItems = Repository.CBFetchItems(), 
      CheckBoxItemsMasteries = Repository.CBMasteriesFetchItems(), 
      CheckBoxItemsLevel = Repository.CBLevelFetchItems(), 
      CheckBoxItemsItems = Repository.CBItemsFetchItems(), 
      CheckBoxItemsFioraSLevel = Repository.CBFioraSLevelFetchItems(), 
      CheckBoxItemsRunes = Repository.CBRunesFetchItems(), 
      Inter = new Intermediary() //Here I instantiate other class 
    }; 



     return View("Index", model); 
    } 

[HttpPost] 
    public ActionResult Battle(ModelVariables model) 
    { 
     Inter.InstantiateRunes(model); //hmm doesent seem to work 

     return View("Battle", model); 
    } 

其他职类（Intermedi ary.cs）：

public void InstantiateRunes(ModelVariables model) 
    { 
     var LifeStealQuintCount = model.CheckBoxItemsRunes.Where(x => x.CBIsSelectedRunes).Select(x => x.CBRunesID = "LS").ToList().Count; 
     var LifeStealQuintValue = model.CheckBoxItemsRunes.Where(x => x.CBIsSelectedRunes && x.CBRunesID == "LS").Select(x => x.CBRunesValue).FirstOrDefault(); 
     if (model.CheckBoxItemsRunes != null && LifeStealQuintCount != 0 && LifeStealQuintValue != 0) 
     { 


      ViewBag.runeTest = LifeStealQuintValue * LifeStealQuintCount; //I set the values here, what's wrong? 
     } 
    } 

视图（Battle.cshtml）：

@ViewBag.runeTest //unable to display due to void method not working 

摘要：我在这里的代码显示没有错误，但是当我运行值似乎并没有去旅行......

Answer 1

ViewBag是Controller类的财产，并在您的Intermediary类（与Controller没有任何关系）中设置ViewBag值不起作用。

您还没有表示什么类型LifeStealQuintValue是，但假设其int（如LifeStealQuintCount是）和乘法的结果总是会导致int，然后改变你的方法

public int? InstantiateRunes(ModelVariables model) 
{ 
    var LifeStealQuintCount = model.CheckBoxItemsRunes.Where(x => x.CBIsSelectedRunes).Select(x => x.CBRunesID = "LS").ToList().Count; 
    var LifeStealQuintValue = model.CheckBoxItemsRunes.Where(x => x.CBIsSelectedRunes && x.CBRunesID == "LS").Select(x => x.CBRunesValue).FirstOrDefault(); 
    if (model.CheckBoxItemsRunes != null && LifeStealQuintCount != 0 && LifeStealQuintValue != 0) 
    { 
     return LifeStealQuintValue * LifeStealQuintCount; //I set the values here, what's wrong? 
    } 
    return null; 
} 

，然后改变您的POST方法为

[HttpPost] 
public ActionResult Battle(ModelVariables model) 
{ 
    ViewBag.runeTest = Inter.InstantiateRunes(model); 
    return View("Battle", model); 
}