ASP.NET MVC 前端(View)向后端(Controller)中传值

在MVC中，要把前端View中的值传递给后端Controller, 主要有两种方法

1. 利用Request.Form 或者 Request.QueryString

public ActionResult Index()
{
    ViewData["Message"] = "Welcome to ASP.NET MVC!";
    ViewData["name"] = Request.Form["name"];
    ViewData["sex"] = Request.Form["sex"];
    return View();
}   

2. 利用FormCollection来获取页面上的值

public ActionResult Index(FormCollection form)
{
    ViewData["Message"] = "Welcome to ASP.NET MVC!";
    User u=new User();
    u.Name = form["Name"];
    u.Password = form["Password"];
    return View(u);
}    

3）利用Action参数

<form name="form1" action="/Home/Index" method="post">
    Name:<input type="text" name="name" /><br />
    Sex: <input type="text" name="sex" />
    <input type="submit" value="submit" />
</form>
<%
    if (ViewData["name"] != null)
    {
        Response.Write("your name is:" + ViewData["name"] + ",  your sex is:" + ViewData["sex"]);
    }
%>
:
public ActionResult Index(string name, string sex)
{
    ViewData["Message"] = "Welcome to ASP.NET MVC!";
    ViewData["name"] = name;
    ViewData["sex"] = sex;
    return View();
}