Delete multiple selected checkbox from webgrid using mvc 4

Delete  multiple selected checkbox using  mvc 4:-

Model:-

public class delcheck

    {

        [Required(ErrorMessage="Enter a valid Id")]

        public int StuId { get; set; }

        [Required(ErrorMessage="Enter a valid name")]

        public string StuName { get; set; }

        [Required(ErrorMessage=" Enter a course name")]

        public string StuCourse { get; set; }

        [Required(ErrorMessage="Enter a valid cityname")]

        public string StuCity { get; set; }

    } public class delcheck

    {

        [Required(ErrorMessage="Enter a valid Id")]

        public int StuId { get; set; }

        [Required(ErrorMessage="Enter a valid name")]

        public string StuName { get; set; }

        [Required(ErrorMessage=" Enter a course name")]

        public string StuCourse { get; set; }

        [Required(ErrorMessage="Enter a valid cityname")]

        public string StuCity { get; set; }

    }

Controller:-

public class mycheckdelController : Controller

    {

        //

        // GET: /mycheckdel/

        deldatamvc2015Entities dt = new deldatamvc2015Entities();

        public ActionResult Index()

        {

            List<Student> mydata = new List<Student>();

            mydata = dt.Students.ToList();

            return View(mydata);

        }

        public ActionResult Delete(string[] ids)

        {

            int[] id = null;

            if (ids != null)

            {

                id = new int[ids.Length];

                int j = 0;

                foreach (string i in ids)

                {

                    int.TryParse(i, out id[j++]);

                }

            }

            if (id != null && id.Length > 0)

            {

                List<Student> allselect = new List<Student>();

                using (deldatamvc2015Entities dc = new deldatamvc2015Entities())

                {

                    allselect = dc.Students.Where(a => id.Contains(a.StuId)).ToList();

                    foreach (var i in allselect)

                    {

                        dc.Students.Remove(i);

                    }

                    dc.SaveChanges();

                }

            }

            return RedirectToAction("Index");

        }

    }

View page:-

@model IEnumerable<mvcmvc2015.Student>

@{

    ViewBag.Title = "Index";

}

<h2>Index</h2>

<html>

    <head>

        <title>WELCOME</title>

    </head>

    <body>

        @using (Html.BeginForm("Delete", "mycheckdel", FormMethod.Post))

        {

            var grid = new WebGrid(Model, canSort: true, canPage: true);

            grid.Pager(WebGridPagerModes.NextPrevious);

            @grid.GetHtml(columns:grid.Columns(

            grid.Column("StuId","StuId", canSort:true),

            grid.Column("StuName","StuName", canSort:true),

            grid.Column("StuCourse","StuCourse" ,canSort:true),

            grid.Column("StuCity","StuCity", canSort:true),

            grid.Column(header:"Select",format:@<text><input type="checkbox" name="ids" value="@item.StuId" /></text>)

                     ));

            <input type="submit" name="Delete It" />

        }

    </body>

</html>

View For delete:-

@model mvcmvc2015.Models.delcheck

@{

    ViewBag.Title = "Delete";

}

<h2>Delete</h2>

<h3>Are you sure you want to delete this?</h3>

<fieldset>

    <legend>delcheck</legend>

    <div class="display-label">

         @Html.DisplayNameFor(model => model.StuId)

    </div>

    <div class="display-field">

        @Html.DisplayFor(model => model.StuId)

    </div>

    <div class="display-label">

         @Html.DisplayNameFor(model => model.StuName)

    </div>

    <div class="display-field">

        @Html.DisplayFor(model => model.StuName)

    </div>

    <div class="display-label">

         @Html.DisplayNameFor(model => model.StuCourse)

    </div>

    <div class="display-field">

        @Html.DisplayFor(model => model.StuCourse)

    </div>

    <div class="display-label">

         @Html.DisplayNameFor(model => model.StuCity)

    </div>

    <div class="display-field">

        @Html.DisplayFor(model => model.StuCity)

    </div>

</fieldset>

@using (Html.BeginForm()) {

    <p>

        <input type="submit" value="Delete" /> |

        @Html.ActionLink("Back to List", "Index")

    </p>

}

login page code in mvc3

Login page code using mvc3:-

(1)First create a model like mylogin.cs

public class mylogin

    {

        [Required]

        [StringLength(10)]

        public string UserName { get; set; }

        [Required]

        public string PassWord { get; set; }

    }

(2)Create a  folder like DataAccess and with in it create a cs file like DAL.cs

public class DAL

    {

        static SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["111"].ConnectionString);

        public static bool UserIsValid(string username, string password)

        {

            bool authenticated = false;

            string query = string.Format("select * from[fetchlogin] where UserName ='{0}' and Password ='{1}'", username, password);

            SqlCommand cmd = new SqlCommand(query,con);

            con.Open();

            SqlDataReader sr = cmd.ExecuteReader();

            authenticated = sr.HasRows;

            con.Close();

            return (authenticated);

        }

(3) Create a  controller   with in it write below code:-

public class myloginController : Controller

    {

        //

        // GET: /mylogin/

        public ActionResult Index()

        {

            return View();

        }

        [HttpPost]

        public ActionResult Index(mylogin logit)

        {

            if (ModelState.IsValid)

            {

                if (DataAccess.DAL.UserIsValid(logit.UserName, logit.PassWord))

                {

                    FormsAuthentication.SetAuthCookie(logit.UserName, true);

                    return RedirectToAction("Index", "sanshow");

                }

               

                {

                    ModelState.AddModelError("", "Invalid username or password");

                    // ModelState.AddModelError("", "Invalid username or password");

                }

            }

            return View();

        }

    }

(4)Eventually create a view for this:-

@model sanjibmvcmvc.Models.mylogin

@{

    ViewBag.Title = "Index";

}

<h2>Index</h2>

<script src="@Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript"></script>

<script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")" type="text/javascript"></script>

@using (Html.BeginForm()) {

    @Html.ValidationSummary(true)

    <fieldset>

        <legend>mylogin</legend>

        <div class="editor-label">

            @Html.LabelFor(model => model.UserName)

        </div>

        <div class="editor-field">

            @Html.EditorFor(model => model.UserName)

            @Html.ValidationMessageFor(model => model.UserName)

        </div>

        <div class="editor-label">

            @Html.LabelFor(model => model.PassWord)

        </div>

        <div class="editor-field">

            @Html.EditorFor(model => model.PassWord)

            @Html.ValidationMessageFor(model => model.PassWord)

        </div>

        <p>

            <input type="submit" value="Create" />

        </p>

    </fieldset>

}

<div>

    @Html.ActionLink("Back to List", "Index")

</div>