ASP.NET MVC 3 Dropdownlist of Users - asp.net-mvc

Question

In my application I have associated my UserId to a table in my database. I need that when I create a new item I can choose the user name from a dropdownlist. And 'possible to do this with the element viewbag?
#Html.EditorFor(model => model.UserId)
I use default membership provider so I can't use Entity Framework for this problem
EDIT
EDIT 2
This is my action create:
[HttpPost]
public ActionResult Create(Employe employe)
{
var users = Roles.GetUsersInRole("Admin");
SelectList list = new SelectList(users);
ViewBag.Users = list;
if (ModelState.IsValid)
{
**employe.EmployeID = users;**
db.Employes.Add(employe);
db.SaveChanges();
}
This does not work. The error is:
Cannot implicitly convert type 'string[]' to 'string'
My model for Employee
public class Employee
{
[Key]
public int EmployeID { get; set; }
public Guid UserId { get; set; }
public string Name { get; set; }
[ForeignKey("UserId")]
public virtual MembershipUser User
{
get
{
return Membership.GetUser(this.Name); //Changed this to Name
}
}
}
}
View:
#Html.DropDownList("Users", ViewBag.Users as SelectList);
My result in UserId field isn't a UserId but this 000000-000000-0000000-00000

Answer 1

How to set a list of users as a SelectItem in the ViewBack
Yes, you should be able to do this by passing your collection to the ViewBag and then create you dropdown from it:
In your controller
var users = Roles.GetUsersInRole("Admin");
SelectList list = new SelectList(users);
ViewBag.Users = list;
In your View (If you're using Razor)
#Html.DropDownList("Users", ViewBag.Users as SelectList);
Read more about SelectListItem here:
http://msdn.microsoft.com/en-us/library/system.web.mvc.selectlistitem.aspx
Also check out:
How can I get this ASP.NET MVC SelectList to work?
Problem with ASP.Net MVC SelectLIst and List<SelectListItems>
Question changed to something more. Here is my idea to solve the issue:
Controller:
public ActionResult Mirko() {
List<SelectListItem> items = new List<SelectListItem>();
foreach (string userName in Roles.GetUsersInRole("Admin")) {
var user = Membership.GetUser(userName);
SelectListItem li = new SelectListItem {
Value = user.ProviderUserKey.ToString(),
Text = user.UserName,
};
items.Add(li);
}
items.Add(new SelectListItem { Text = "Please Select...", Value = "na" , Selected = true});
ViewBag.Users = items;
return View();
}
[HttpPost]
public ActionResult Mirko(Employee employee) {
if(IsValideEmployee(employee)) {
/*Only used to show that user was retrieved*/
TempData["message"] = "Saved Employee";
TempData["user"] = employee.User;
/* employeeRepository.Save(employee) */
/* Redirect to where you want to go */
return RedirectToAction("Mirko", "Home");
}
return View(employee);
}
private bool IsValideEmployee(Employee emp) {
if (emp.Name == "na")
ModelState.AddModelError("UserId", "You must select a user!");
/*Do some validation here*/
//ModelState.Add("Name", "You must set the user name!")
return ModelState.IsValid;
}
View
#model StackOverFlowExample.Models.Employee
#{
MembershipUser user = null;
ViewBag.Title = "Mirko Example";
var users = ViewBag.Users as IEnumerable<SelectListItem>;
}
#if (TempData["message"] != null) {
user = TempData["user"] as MembershipUser;
<h3>#TempData["message"]</h3>
<div>
<span>You selected #user.UserName</span>
<ul>
<li>Email: #user.Email</li>
<li>Last Logged In: #user.LastLoginDate.ToString("d")</li>
<li>Online: #user.IsOnline</li>
</ul>
</div>
}
#using (#Html.BeginForm()) {
<label for="UserId">Associate Employee To User:</label>
#Html.DropDownListFor(m => m.UserId, #users)
#Html.HiddenFor(m => m.Name)
<input type="submit" value="Save" id="save-employee"/>
}
<div id="status" style="display:none;"></div>
<script type="text/javascript">
$(document).ready(function () {
$("#UserId").change(function () {
//Set value of name
$("#Name").val($(this).children("option:selected").text());
});
$("#save-employee").click(function (e) {
var value = $("#Name").val();
if (value == "" || value == "na") {
e.preventDefault();
$("#status").html("<h3>You must select a user!</h3>").toggle();
}
});
});
</script>