How to get the DropDown selected value in controller in MVC3? - asp.net-mvc-3

Question

Hi all i have to get the selected value from dropdown into my post method in controller ..how can i do this
here is my controller
[AcceptVerbs(HttpVerbs.Get)]
public ActionResult AddNew()
{
ViewBag.Roles = new SelectList(List(), "RoleID", "RoleName");
return View();
}
//
//Geting All Roles In a GetRoles()/
//
public List<ResourceModel> List()
{
var roles = new List<ResourceModel>();
SqlConnection conn = new SqlConnection("Data Source=LMIT-0039;Initial Catalog=BugTracker;Integrated Security=True");
SqlCommand Cmd = new SqlCommand("Select GroupId,EmplopyeeRole from EmployeeGroup", conn);
conn.Open();
SqlDataAdapter da = new SqlDataAdapter(Cmd);
DataSet ds = new DataSet();
da.Fill(ds);
for (int i = 0; i <= ds.Tables[0].Rows.Count - 1; i++)
{
var model = new ResourceModel();
model.RoleId = Convert.ToInt16(ds.Tables[0].Rows[i]["GroupId"]);
model.RoleName = ds.Tables[0].Rows[i]["EmplopyeeRole"].ToString();
roles.Add(model);
}
conn.Close();
return roles ;
}
//
//To perform the AddNew Logic..i.e it adds a new employee to DB/
//
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult AddNew(ResourceModel model)
{
// var modelList = new List<ProjectModel>();
using (SqlConnection conn = new SqlConnection("Data Source=LMIT-0039;Initial Catalog=BugTracker;Integrated Security=True"))
{
conn.Open();
SqlCommand insertcommande = new SqlCommand("InsertEmplyoee", conn);
insertcommande.CommandType = CommandType.StoredProcedure;
insertcommande.Parameters.Add("#EmployeeName", SqlDbType.VarChar).Value = model.EmployeeName;
insertcommande.Parameters.Add("#EmployeeEmailId", SqlDbType.VarChar).Value = model.EmployeeEmailId;
insertcommande.Parameters.Add("#EmployeePassword", SqlDbType.VarChar).Value = model.EmployeePassword;
insertcommande.Parameters.Add("#GroupName", SqlDbType.VarChar).Value = model.RoleName;
insertcommande.ExecuteNonQuery();
}
return View();
}
now i want to get the selected value #GroupName Parameter in my postmethod...can any one help how to do thi
this is my html
<%:Html.DropDownList("Roles")%>

Answer 1

You could have your POST action take a view model, or add another parameter to it that will hold the selected value:
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult AddNew(ResourceModel model, string roles)
And don't forget to repopulate the ViewBag.Roles in your POST action the same way you did in your GET action if you intend to redisplay the same view.

Answer 2

You could use Request.Form["Roles"] in your controller action.. but maybe a better solution is creating a new view model for the page and you can use Html.DropDownListFor(m => m.RoleID, rolesSelectList) or whatever.. and the value will be automatically bound to your model in the udpate method:
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult AddNew(ResourceModel model)