Input type checkbox with MVC razor

Question

Why is the value of my checkbox not passed to my ViewModel?

My View (I omitted input tags not relevant for this post):

@model Pro.WebUI.ViewModels.UserViewModel

@using (Html.BeginForm("ManageUsers", "Administration", FormMethod.Post, 
new { id = "request-form", @class = "form-horizontal" }))
{
 <div class="form-group">
  <label for="inputAuthorize" class="col-lg-2 control-label">Authorize</label>
   <div class="col-lg-8">
     <input type="checkbox" id="Authorized" name="Authorized" value="@Model.Authorized" />
   </div>
 </div>
 <div class="form-group">
  <div class="col-lg-10 col-lg-offset-2">
   <br /><br />
   <button type="submit" class="btn btn-primary">Submit Request</button>
   </div>
 </div>
 }

My ViewModel:

public class UserViewModel
{
    [Key]
    public string UserID { get; private set; }

    public string UserName { get; set; }
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public bool Authorized { get; set; }
    public string Email { get; set; }
    public string Phone { get; set; }
    public string Notes { get; set; }
}

My Controller:

 [HttpPost]
    public ActionResult ManageUsers(UserViewModel model)
    {
        if (ModelState.IsValid)
        {
            ProcurementUser obj = new ProcurementUser();
            obj.UserName = model.Email;
            obj.FirstName = model.FirstName;
            obj.LastName = model.LastName;
            obj.Email = model.Email;
            obj.Phone = model.Phone;
            obj.Authorized = model.Authorized;
            UserRepository.SaveUser(obj);
            //success message
        }
        return View(model);
    }

I did not include all input tags but when I step through the code without the checkbox, all values are passed. I looked at other checkbox questions on SOF but they mostly use the @Html.Checkbox or @Html.CheckboxFor. I would like to just use input type="checkbox"

Answer 1

If we need to use <input> filed instead of @Html.CheckboxFor, we can use "checked=\"checked\"" syntax as in this code:

<input type="checkbox" id="Authorized" name="Authorized" value="true" @(Model.Authorized ? "checked=\"checked\"" : "") />