Question

我基本上有两种观点。第一个视图将用户名作为输入并生成密码并重定向到第二个视图。当用户在第一个视图中输入控件并将该模型传递给第二个视图时，我将用户输入存储在模型中。如何在第二个视图中检索该值。请在下面找到我的代码，如果我犯了一些错误，请告诉我。

public ActionResult GetOTP(string Login) 
{ 
    // string user = model.Login; 

    if (!System.String.IsNullOrEmpty(Login)) 
    { 
        int otpass; 

        bool conversion = Int32.TryParse(Encryption.GetPassword(Login), out otpass); 
        if (conversion) 
        { 
            //Save user credentials. 
            User userModel = new User(); 
            userModel.Login = Login; 
            userModel.Otp = otpass; 
            string otp1 = otpass.ToString(); 
            userModel.OtpCrtDate = DateTime.Now; 

            ViewBag.user = userModel.Login; 
            ViewBag.date = userModel.OtpCrtDate; 
            ViewBag.password = Convert.ToString(otpass); 
            ViewBag.status = "OTP: " + otpass + " remains active just 30 seconds from now."; 

            return View("Access",userModel); 
            // return View("GetOTP", userModel); 
        } 
        else 
        { 
            ViewData["status"] = "Sorry, an error was found while creating your password. Try again, please."; 
            return View("GetOtp"); 
        } 
    } 
    else
        return View("GetOtp"); 
    } 
}

public ActionResult Access(User model,string Login, int otp) 
{ 
    if (otp == model.Otp && Login == model.Login) 
    { 
        TimeSpan timeSub = DateTime.Now - model.OtpCrtDate; 

        if (timeSub.TotalSeconds < 30.0) 
        { 
            //LogIn successful 
            //Model.Logged = true; 
            return View("../PrivateArea/Account"); 
        } 
        else 
        { 
            ViewData["status"] = "Sorry but your OTP is very old. Get a new one."; 
            return View("UserGetOtp"); 
        } 

    } 
    return View("Access"); 
}

Answer 1

您可以使用Session或TempData在两个请求之间保留数据，如下所示： <强>会话

public ActionResult SampleBook5()
{
    Book book = new Book
    {
        ID = 1,
        BookName = "Sample Book",
        Author = "Sample Author",
        ISBN = "Not available"
    };

    Session["BookData"] = book;
    return RedirectToAction("SampleBook6");
}

public ActionResult SampleBook6()
{
    Book book = Session["BookData"] as Book;

    return View(book);
}

<强> TempData的：

public ActionResult SampleBook3()
{
    Book book = new Book
    {
        ID = 1,
        BookName = "Sample Book",
        Author = "Sample Author",
        ISBN = "Not available"
    };

    TempData["BookData"] = book;
    return RedirectToAction("SampleBook4");
}

public ActionResult SampleBook4()
{
    Book book = TempData["BookData"] as Book;

    return View(book);
}

使用Session和TempData之间的主要区别在于我们可以使用会话变量来保存完整用户会话的数据另一方面，我们使用TempData来传递一些数据从一种行动方法到另一种行动方法

在MVC中保持两个视图请求之间的信息

1 个答案: