ASP.NET MVC中在Action获取提交的表单数据方法总结 (4种方法，转载备忘)

有Index视图如下：

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视图代码如下：

<%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage" %>

<asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server">

    主页

</asp:Content>

<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">

    <h2><%= Html.Encode(ViewData["Message"]) %></h2>

    <br />

    <br />

    <% using(Html.BeginForm("HandleForm", "Home")) %>

    <% { %>

        Enter your name: <%= Html.TextBox("name") %>

        <br /><br />

        Select your favorite color:<br />

        <%= Html.RadioButton("favColor", "Blue", true) %> Blue <br />

        <%= Html.RadioButton("favColor", "Purple", false)%> Purple <br />

        <%= Html.RadioButton("favColor", "Red", false)%> Red <br />

        <%= Html.RadioButton("favColor", "Orange", false)%> Orange <br />

        <%= Html.RadioButton("favColor", "Yellow", false)%> Yellow <br />

        <%= Html.RadioButton("favColor", "Brown", false)%> Brown <br />

        <%= Html.RadioButton("favColor", "Green", false)%> Green

        <br /><br />

        <%= Html.CheckBox("bookType") %> I read more fiction than non-fiction.<br />

        <br /><br />

        My favorite pet: <%= Html.DropDownList("pets") %>

        <br /><br />

        <input type="submit" value="Submit" />

    <% } %>

</asp:Content>

如图填写表单数据：

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分别使用不同的表单处理方法，对提交的表单数据在视图FormResults呈现。

提交表单对应的HomeController，包含以不同方法获取表单数据的代码，如下：网址:yii666.com<

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.Mvc;

namespace HtmlHelper.Controllers

{

    [HandleError]

    public class HomeController : Controller

    {

        public ActionResult Index()

        {

            ViewData["Message"] = "欢迎使用 ASP.NET MVC!";

            //手动构造页面中下拉框的宠物数据

            List<string> petList = new List<string>();

            petList.Add("Dog");

            petList.Add("Cat");

            petList.Add("Hamster");

            petList.Add("Parrot");

            petList.Add("Gold fish");

            petList.Add("Mountain lion");

            petList.Add("Elephant");

            ViewData["Pets"] = new SelectList(petList);

            return View();

        }

        public ActionResult About()

        {

            return View();

        }

        /// <summary>

        /// 处理表单提交数据，方法1:使用传统的Request请求取值

        /// </summary>

        /// <returns></returns>

        public ActionResult HandleForm()

        {

            ViewData["name"] = Request["name"];

            ViewData["favColor"] = Request["favColor"];

            ViewData["bookType"] = Request["bookType"];

            ViewData["pet"] = Request["pets"];

            return View("FormResults");

        }

        /// <summary>

        /// 处理表单提交数据，方法2:Action参数名与表单元素name值一一对应

        /// </summary>

        /// <param name="name"></param>

        /// <param name="favColor"></param>

        /// <param name="bookType"></param>

        /// <param name="pets"></param>

        /// <returns></returns>

        //public ActionResult HandleForm(string name, string favColor, Boolean bookType, string pets)

        //{

        //    ViewData["name"] = name;

        //    ViewData["favColor"] = favColor;

        //    ViewData["bookType"] = bookType;

        //    ViewData["pet"] = pets;

        //    return View("FormResults");

        //}

        /// <summary>

        /// 处理表单提交数据，方法3:从MVC封装的FormCollection容器中读取

        /// </summary>

        /// <param name="form"></param>

        /// <returns></returns>

        //public ActionResult HandleForm(FormCollection form)

        //{

        //    ViewData["name"] = form["name"];

        //    ViewData["favColor"] = form["favColor"];

        //    ViewData["bookType"] = form["bookType"];

        //    ViewData["pet"] = form["pets"];

        //    return View("FormResults");

        //}

        /// <summary>

        /// 处理表单提交数据，方法4:使用实体作为Action参数传入，前提是提交的表单元素名称与实体属性名称一一对应

        /// </summary>

        /// <param name="request"></param>

        /// <returns></returns>

        //[HttpPost]

        //public ActionResult HandleForm(InforModel infor)

        //{

        //    ViewData["name"] = infor.name;

        //    ViewData["favColor"] = infor.favColor;

        //    ViewData["bookType"] = infor.bookType;

        //    ViewData["pet"] = infor.pets;

        //    return View("FormResults");

        //}

    }

}

在FormResults视图显示ViewData的数据，如图所示：

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