@model List<StudentsModel>
<link href="~/lib/bootstrap/dist/css/bootstrap.css.map" rel="stylesheet" />
<table class="table table-bordered table-sm table-striped">
    <thead>
        <tr>
            <th scope="col">Student No</th>
            <th scope="col">FullName</th>
            <th scope="col">Birthday</th>
            <th scope="col">Address</th>
            <th scope="col">UserName</th>
            <th scope="col">Email</th>
            <th scope="col">Mobile</th>
            <th scope="col">CreatedDate</th>
            <th scope="col">Update</th>
            <th scope="col">Del</th>
        </tr>
    </thead>
    <tbody>
        @foreach (var student in Model)
        {
        <tr>
            <td>
                @student.StudentNo
            </td>
            <td>
                @student.FullName
            </td>
            <td>
                @Convert.ToDateTime(@student.Birthday).ToString("dd/MM/yyyy")
            </td>
            <td>
                @student.Address
            </td>
            <td>
                @student.UserName
            </td>
            <td>
                @student.Email
            </td>
            <td>
                @student.Mobile
            </td>
            <td>
                @*@Convert.ToDateTime(@student.CreatedDate).ToString("dd/MM/yyyy")*@
                @string.Format("{0:dd MMMM yyyy}", @student.CreatedDate)
            </td>
            <td>
                <form asp-action="Delete" method="post" asp-route-id="@student.StudentID">
                    <button>Delete</button>
                </form>
            </td>
            <td><a asp-action="Update" asp-route-id="@student.StudentID" class="btn btn-success small">Update</a></td>
        </tr>
        }
    </tbody>
</table>
@{ await Html.RenderPartialAsync("_ValidationScriptsPartial"); }

  <th scope="col">Del</th>

<td>
    <form asp-action="Delete" method="post" asp-route-id="@student.StudentID">
       <button>Delete</button>
    </form>
</td>

 asp-action="Delete".

 asp-route-id="@student.StudentID" 

[HttpPost]
        public IActionResult Delete(int id)
        {
            string connectionString = Configuration["ConnectionStrings:DefaultConnection"];
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                string sql = $"Delete From Students Where Id=@@#{id}@@#";
                using (SqlCommand command = new SqlCommand(sql, connection))
                {
                    connection.Open();
                    command.ExecuteNonQuery();
                    connection.Close();
                }
            }
            return RedirectToAction("AllStudent");
        }

string sql = $"Delete From Students Where Id=@@#{id}@@#";