Question

我是MVC5的新手，我正在构建一个可以添加两个数字的简单应用程序。的模型

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace Test.Models
{
    public class Solve
    {
        public  decimal a { get; set; }
        public  decimal b { get; set; }
        public decimal Result { get; set; }
    }
 }

这是我的控制器的控制器

namespace Test.Controllers
{
    public class SolveController : Controller
    {
        // GET: Solve
        public ActionResult Index()
        {
          return View();
        }

        [HttpPost]
        public ActionResult Index(Solve equation)
        {

            equation.Result = equation.a + equation.b;
            ViewBag.Message = equation;
            return View();
        }

查看

@model Test.Models.Solve

@{
ViewBag.Title = "Index";
}

<h2>Index</h2>


<form method="post">
  First Value: <input type="number" name="a"/><br /><br />
  Second Value: <input type="number" name="b" /><br /><br />
   <input type="submit" name="input" />
  </form>
 @{ 
  var answer = (Solve)ViewBag.Message;
  }
<p>
  @answer.Result;
</p>

这是我的看法。可能问题来自这里。真的需要一些帮助。感谢

Answer 1

返回您的模型，如下所示。

[HttpPost]
        public ActionResult Index(Solve equation)
        {

            equation.Result = equation.a + equation.b;
            return View(equation);
        }

您的HTMl将是：

@model Test.Models.Solve

@{
ViewBag.Title = "Index";
}

<h2>Index</h2>


<form method="post">
  First Value: <input type="number" name="a"/><br /><br />
  Second Value: <input type="number" name="b" /><br /><br />
   <input type="submit" name="input" />
  </form> 
<p>
  @Model.Result;
</p>

在我的视图中显示模型时遇到困难

1 个答案: