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:
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>
<%@ 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:
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:
- 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");
- //}
- }
- }
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: