Dropdownlistfor On your View return null, how to fix it?

Question

Hi Team

I need some help, i want to create list of values using dropdownlist for, now on the view i am getting a null object when accessing them.

@using (Html.BeginForm("SuperAdmin", "Home", FormMethod.Post))
{
<div class="form-group row">
<label for="Content-Licence" class="col-sm-3 col-form-label">Content Licence</label>
<div class="col-sm-5">
@Html.DropDownListFor(model => model.Dashboard.CourseLicence, new SelectList(Model.lsteNtsaDashboard))
</div>
</div>
}

public ActionResult SuperAdmin() {
var list = new List<string>() { "Private(Copyrighted)", "Public Domain", "Creative Commons Licences", "CC Attribution", "CC Attribution Share ALike", "CC Attribution Non-Commercial",
"CC Attribution Non-Commercial Share Alike", "CC Attribution Non Directive", "CC Attribution Non-Commercial No Directives" };
ViewBag.list = list;
return View(list);
}
public class eNtsaDashboardViewModel
{
public string CourseName { get; set; }
public List<eNtsaCourses> CourseLicence { get; set; }
}

Farhan Ahmed · Answer

@Html.DropDownList( "Content Licence" , new SelectList(ViewBag.list, "Value" , "Text" ), "--- Select Content Licence---" , new { @ class = "form-control" }) @Html.DropDownListFor((model => model.SelectedProjectKey), new SelectList(Model.Projects, "ProjectKey" , "ProjectName" ))

Jignesh Kumar · Answer

Hi, You need to pass list with your key and values in selectedList, Please refer this link https://stackoverflow.com/questions/3057873/how-to-write-a-simple-html-dropdownlistfor @Html.DropDownListFor(model => model.Dashboard.CourseLicence, new SelectList( "YourListModel" , "KeyField" , "ValueField" ))