Modelstate return false when button clicks here is my codepublic partial class user public int id get set public string name get set DisplayName34Email Id34 RequiredErrorMessage 34Email ID is Required34 RegularExpression3409azAZw09azAZ09azAZw09azAZazAZ2934 ErrorMessage 34Invalid Email Id34 public string email get set DisplayName34Username34

[Solved] ModelState IsValid is always returning false in ASP.Net MVC

yogeshc

SOLVED CLOSED ACTIVE ANSWERED
User: yogeshc
Posted: on Aug 02, 2021 11:10 PM
Forum: ASP.Net MVC
Answer: 1
Views: 18319
Sample Code: Download

Modelstate return false when button clicks

here is my code

public partial class user
{
    public int id { get; set; }
     
    public string name { get; set; }
 
    [DisplayName("Email Id")]
    [Required(ErrorMessage = "Email ID is Required")]
    [RegularExpression("^([0-9a-zA-Z]([-\\.\\w]*[0-9a-zA-Z])*@([0-9a-zA-Z][-\\w]*[0-9a-zA-Z]\\.)+[a-zA-Z]{2,9})$", ErrorMessage ="Invalid Email Id")]
    public string email { get; set; }
 
    [DisplayName("Username")]
    [Required(ErrorMessage ="Username is Required")]
    public string username { get; set; }
     
    [DisplayName("Password")]
    [Required(ErrorMessage = "Password is Required")]
    [DataType(DataType.Password)]
    public string password { get; set; }
 
    [DisplayName("Remember Me")]
    public bool  RememberMe { get; set; }
}

[HttpPost]
public ActionResult Index(user u)
{
     HttpCookie cookie = new HttpCookie("User");
 
     if (ModelState.IsValid == true)
     {
         if (u.RememberMe == true)
         {
             cookie["username"] = u.username;
             //below code for password Encription
             byte[] b = ASCIIEncoding.ASCII.GetBytes(u.password);
             string EncryptedPassword = Convert.ToBase64String(b);
 
             cookie["password"] = EncryptedPassword;
             cookie.Expires = DateTime.Now.AddDays(2);
             HttpContext.Response.Cookies.Add(cookie);
         }
         else
         {
             cookie.Expires = DateTime.Now.AddDays(-1);
             HttpContext.Response.Cookies.Add(cookie);
         }
 
         var row = db.users.Where(model => model.username == u.username && model.password == u.password).FirstOrDefault();
         if (row != null)
         {
             Session["Username"] = u.username;
             TempData["message"] = "<script>alert('Login Successfull')</script>";
             return RedirectToAction("Index", "Dashboard");
         }
         else
         {
             TempData["message"] = "<script>alert('Login Failed')</script>";
         }
     }
     return View();
 }

@Html.Raw(TempData["message"])
@using (Html.BeginForm("Index", "Login", FormMethod.Post))
{
    @Html.AntiForgeryToken()
 
    <div id="loginbox">
        <form id="loginform" action="#" class="form-vertical">
            <div class="control-group normal_text"> <h3>Admin Login</h3></div>
            @Html.ValidationSummary(true, "", new { style = "color:red;" })
            <div class="control-group">
                <div class="controls">
                    <div class="main_input_box">
                        <span class="add-on bg_lg"><i class="icon-user"> </i></span>
                        @Html.EditorFor(model => model.username, new { htmlAttributes = new { @class = "form-control", placeholder = "Username", @Value = ViewBag.username } })
                        @Html.ValidationMessageFor(model => model.username, "", new { style = "color:red;" })
                    </div>
                </div>
            </div>
            <div class="control-group">
                <div class="controls">
                    <div class="main_input_box">
                        <span class="add-on bg_ly"><i class="icon-lock"></i></span>
                        @Html.EditorFor(model => model.password, new { htmlAttributes = new { @class = "form-control", placeholder = "Password", @Value = ViewBag.password } })
                        @Html.ValidationMessageFor(model => model.password, "", new { style = "color:red;" })
                    </div>
                </div>
            </div>
            <div class="control-group">
                <div class="controls">
                    <div data-toggle="buttons-checkbox" class="btn-group">
                        @Html.CheckBoxFor(model => model.RememberMe)@Html.LabelFor(model => model.RememberMe)
                    </div>
                </div>
            </div>
            <div class="form-actions">
                <span class="pull-left">
                @Html.ActionLink("Lost password ?", "Recover", "Login", new { area = "" }, new { @class= "flip-link btn btn-info" })
            </span>
                <span class="pull-right"><input type="submit" value="Login" class="btn btn-success" /></span>
            </div>
        </form>
    </div>
}

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dharmend...

1 2

Reply
ANSWER
User: dharmendr
Replied: on Aug 03, 2021 02:41 AM
Report

yogeshc says:
    [DisplayName("Email Id")]

    [Required(ErrorMessage = "Email ID is Required")]

    [RegularExpression("^([0-9a-zA-Z]([-\\.\\w]*[0-9a-zA-Z])*@([0-9a-zA-Z][-\\w]*[0-9a-zA-Z]\\.)+[a-zA-Z]{2,9})$", ErrorMessage ="Invalid Email Id")]

    public string email { get; set; }

You had defined required for email field. But email field is blank on post action. So you need to ignore the email field from ModelState.

ModelState.Remove("email");

Refer below sample.

Model

using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
public class user
{
    public int id { get; set; }

    public string name { get; set; }

    [DisplayName("Email Id")]
    [Required(ErrorMessage = "Email ID is Required")]
    [RegularExpression("^([0-9a-zA-Z]([-\\.\\w]*[0-9a-zA-Z])*@([0-9a-zA-Z][-\\w]*[0-9a-zA-Z]\\.)+[a-zA-Z]{2,9})$", ErrorMessage = "Invalid Email Id")]
    public string email { get; set; }

    [DisplayName("Username")]
    [Required(ErrorMessage = "Username is Required")]
    public string username { get; set; }

    [DisplayName("Password")]
    [Required(ErrorMessage = "Password is Required")]
    [DataType(DataType.Password)]
    public string password { get; set; }

    [DisplayName("Remember Me")]
    public bool RememberMe { get; set; }
}

Controller

public class HomeController : Controller
{
    // GET: Home
    public ActionResult Index()
    {
        return View();
    }

    [HttpPost]
    public ActionResult Index(user u)
    {
        ModelState.Remove("email");
        HttpCookie cookie = new HttpCookie("User");
        if (ModelState.IsValid)
        {
            // Rest of code.
        }
        return View();
    }
}

View

@model ModelState_False_MVC.Models.user

@{
    Layout = null;
}

<!DOCTYPE html>

<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>Index</title>
</head>
<body class="container">
    @using (Html.BeginForm("Index", "Home", FormMethod.Post))
    {
        @Html.AntiForgeryToken()

        <div id="loginbox">
            <form id="loginform" action="#" class="form-vertical">
                <div class="control-group normal_text"> <h3>Admin Login</h3></div>
                @Html.ValidationSummary(true, "", new { style = "color:red;" })
                <div class="control-group">
                    <div class="controls">
                        <div class="main_input_box">
                            <span class="add-on bg_lg"><i class="icon-user"> </i></span>
                            @Html.EditorFor(model => model.username, new { htmlAttributes = new { @class = "form-control", placeholder = "Username", @Value = ViewBag.username } })
                            @Html.ValidationMessageFor(model => model.username, "", new { style = "color:red;" })
                        </div>
                    </div>
                </div>
                <div class="control-group">
                    <div class="controls">
                        <div class="main_input_box">
                            <span class="add-on bg_ly"><i class="icon-lock"></i></span>
                            @Html.EditorFor(model => model.password, new { htmlAttributes = new { @class = "form-control", placeholder = "Password", @Value = ViewBag.password } })
                            @Html.ValidationMessageFor(model => model.password, "", new { style = "color:red;" })
                        </div>
                    </div>
                </div>
                <div class="control-group">
                    <div class="controls">
                        <div data-toggle="buttons-checkbox" class="btn-group">
                            @Html.CheckBoxFor(model => model.RememberMe)
                            @Html.LabelFor(model => model.RememberMe)
                        </div>
                    </div>
                </div>
                <div class="form-actions">
                    <span class="pull-left">
                        @Html.ActionLink("Lost password ?", "Recover", "Login", new { area = "" }, new { @class = "flip-link btn btn-info" })
                    </span>
                    <span class="pull-right"><input type="submit" value="Login" class="btn btn-success" /></span>
                </div>
            </form>
        </div>
    }
</body>
</html>

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[Solved] ModelState IsValid is always returning false in ASP.Net MVC

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