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  • 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:

    1. <%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage" %>  
    2.   
    3. <asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server">  
    4.     主页  
    5. </asp:Content>  
    6.   
    7. <asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">  
    8.   
    9.     <h2><%= Html.Encode(ViewData["Message"]) %></h2>  
    10.     <br />  
    11.     <br />  
    12.   
    13.     <% using(Html.BeginForm("HandleForm", "Home")) %>  
    14.     <% { %>  
    15.         Enter your name: <%= Html.TextBox("name") %>  
    16.         <br /><br />  
    17.         Select your favorite color:<br />  
    18.         <%= Html.RadioButton("favColor", "Blue", true) %> Blue <br />  
    19.         <%= Html.RadioButton("favColor", "Purple", false)%> Purple <br />  
    20.         <%= Html.RadioButton("favColor", "Red", false)%> Red <br />  
    21.         <%= Html.RadioButton("favColor", "Orange", false)%> Orange <br />  
    22.         <%= Html.RadioButton("favColor", "Yellow", false)%> Yellow <br />  
    23.         <%= Html.RadioButton("favColor", "Brown", false)%> Brown <br />  
    24.         <%= Html.RadioButton("favColor", "Green", false)%> Green   
    25.         <br /><br />  
    26.         <%= Html.CheckBox("bookType") %> I read more fiction than non-fiction.<br />  
    27.         <br /><br />  
    28.         My favorite pet: <%= Html.DropDownList("pets") %>  
    29.         <br /><br />  
    30.         <input type="submit" value="Submit" />  
    31.     <% } %>  
    32.   
    33. </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:

    1. using System;  
    2. using System.Collections.Generic;  
    3. using System.Linq;  
    4. using System.Web;  
    5. using System.Web.Mvc;  
    6.   
    7. namespace HtmlHelper.Controllers  
    8. {  
    9.     [HandleError]  
    10.     public class HomeController : Controller  
    11.     {  
    12.         public ActionResult Index()  
    13.         {  
    14.             ViewData["Message"] = "欢迎使用 ASP.NET MVC!";  
    15.   
    16.             //手动构造页面中下拉框的宠物数据   
    17.             List<string> petList = new List<string>();  
    18.             petList.Add("Dog");  
    19.             petList.Add("Cat");  
    20.             petList.Add("Hamster");  
    21.             petList.Add("Parrot");  
    22.             petList.Add("Gold fish");  
    23.             petList.Add("Mountain lion");  
    24.             petList.Add("Elephant");  
    25.   
    26.             ViewData["Pets"] = new SelectList(petList);  
    27.   
    28.             return View();  
    29.         }  
    30.   
    31.         public ActionResult About()  
    32.         {  
    33.             return View();  
    34.         }  
    35.   
    36.         /// <summary>   
    37.         /// 处理表单提交数据,方法1:使用传统的Request请求取值   
    38.         /// </summary>   
    39.         /// <returns></returns>   
    40.         public ActionResult HandleForm()  
    41.         {  
    42.             ViewData["name"] = Request["name"];  
    43.             ViewData["favColor"] = Request["favColor"];  
    44.             ViewData["bookType"] = Request["bookType"];  
    45.             ViewData["pet"] = Request["pets"];  
    46.   
    47.             return View("FormResults");  
    48.         }  
    49.   
    50.         /// <summary>   
    51.         /// 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   
    52.         /// </summary>   
    53.         /// <param name="name"></param>   
    54.         /// <param name="favColor"></param>   
    55.         /// <param name="bookType"></param>   
    56.         /// <param name="pets"></param>   
    57.         /// <returns></returns>   
    58.         //public ActionResult HandleForm(string name, string favColor, Boolean bookType, string pets)   
    59.         //{   
    60.         //    ViewData["name"] = name;   
    61.         //    ViewData["favColor"] = favColor;   
    62.         //    ViewData["bookType"] = bookType;   
    63.         //    ViewData["pet"] = pets;   
    64.   
    65.         //    return View("FormResults");   
    66.         //}   
    67.   
    68.         /// <summary>   
    69.         /// 处理表单提交数据,方法3:从MVC封装的FormCollection容器中读取   
    70.         /// </summary>   
    71.         /// <param name="form"></param>   
    72.         /// <returns></returns>   
    73.         //public ActionResult HandleForm(FormCollection form)   
    74.         //{   
    75.         //    ViewData["name"] = form["name"];   
    76.         //    ViewData["favColor"] = form["favColor"];   
    77.         //    ViewData["bookType"] = form["bookType"];   
    78.         //    ViewData["pet"] = form["pets"];   
    79.   
    80.         //    return View("FormResults");   
    81.         //}   
    82.   
    83.         /// <summary>   
    84.         /// 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   
    85.         /// </summary>   
    86.         /// <param name="request"></param>   
    87.         /// <returns></returns>   
    88.         //[HttpPost]   
    89.         //public ActionResult HandleForm(InforModel infor)   
    90.         //{   
    91.         //    ViewData["name"] = infor.name;   
    92.         //    ViewData["favColor"] = infor.favColor;   
    93.         //    ViewData["bookType"] = infor.bookType;   
    94.         //    ViewData["pet"] = infor.pets;   
    95.   
    96.         //    return View("FormResults");   
    97.         //}   
    98.   
    99.     }  
    100. }  
    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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  • 原文地址:https://www.cnblogs.com/CielWater/p/3282133.html
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