MVC-- 网页中整、小数加法

首先看看总控制器：

using FloatAddBox2.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;

namespace FloatAddBox2.Controllers
{
    public class HomeController : Controller
    {
        //
        // GET: /Home/

        public ActionResult Index()
        {
            return View();
        }
        [HttpGet]
        public ActionResult FloatAdd()
        {
            return View();
        }
        [HttpPost]
        public ActionResult CalSum(Box box)
        {

            box.Sum = box.FirstNum + box.SecondNum;
            return View("FloatAdd", box);
        }
    }
}

代码较短，其中的CalSum中把Box中的两数相加给了Sum，FloatAdd只是为View创建的空控制器，而Index中无任何代码，只是作为首页。

接下来看看View代码：

@model FloatAddBox2.Models.Box

@{
    ViewBag.Title = "FloatAdd";
}

<h2>FloatAdd</h2>

@using (Html.BeginForm("CalSum","Home",FormMethod.Post)) {
    @Html.ValidationSummary(true)

    <fieldset>
        <legend>Box</legend>

        <div class="editor-label">
            @Html.LabelFor(model => model.FirstNum)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.FirstNum)
            @Html.ValidationMessageFor(model => model.FirstNum)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.SecondNum)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.SecondNum)
            @Html.ValidationMessageFor(model => model.SecondNum)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.Sum)
        </div>
        <div class="editor-field">
            @Html.DisplayFor(model => model.Sum)
        </div>

        <p>
            <input type="submit" value="Create" />
        </p>
    </fieldset>
}

<div>
    @Html.ActionLink("Back to List", "Index")
</div>

@section Scripts {
    @Scripts.Render("~/bundles/jqueryval")
}

这个View中是对Model中的Box一个强类型。

而Index的View中只有显示标题的代码：

@{
    ViewBag.Title = "Index";
}

<h2>Index</h2>

 

Model中Box的代码：

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

namespace FloatAddBox2.Models
{
    public class Box
    {
        [Display(Name="加数")]
        [Range(0,100)]
        public float FirstNum { set; get; }

        [Display(Name = "加数")]
        [Range(0,100)]
        public float SecondNum { set; get; }
　　　　 [Display(Name = "和值")]
        public float Sum { set; get; }
    }
}

创建了三个：FirstNum，SecondNum，Sum 。

前两个的取值范围都为0~100之间，否则自动报错。。

三个都有着set和get。而且都作了汉化。