Dropdown Required and Display attribute not working

Krishna Rana

7y1.2k.NET

Can we make dropdown required to select which is binding using ViewBag as below-

// GET: Employee/Create in the action method
public ActionResult Create()
{
ViewBag.DepartmentId = new SelectList(db.Departments, "Id", "Name");
return View();
}
// GET: Employee/Create in the Create view
@Html.LabelFor(model => model.DepartmentId, "DepartmentId", htmlAttributes: new { @class = "control-label col-md-2" })
@Html.DropDownList("DepartmentId", null, "Select Department", htmlAttributes: new { @class = "form-control" })
@Html.ValidationMessageFor(model => model.DepartmentId, "", new { @class = "text-danger" })
// setting metadata
[MetadataType(typeof(EmployeeMetaData))]
public partial class Employee
{
}
public class EmployeeMetaData
{
[Required]
public int EmployeeId { get; set; }
[Required]
public string Name { get; set; }
[Required]
public string Gender { get; set; }
[Required]
public string City { get; set; }
[Required]
[Display(Name = "Department")]
public Nullable<int> DepartmentId { get; set; }

i have set attribute Required and Display but both are not working,

pls help me.

5 Replies

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Mohsin Arif7y ago
hi
yes sometimes MVC do this.
but check it its working when you submit it will not submit.. but error message not showing . thats why in this case we have to palce both side (client side and Server side ) validation
try this
https://stackoverflow.com/questions/18704902/adding-the-required-attribute-with-dropdownlistfor
0
Jignesh Kumar7y ago
Hi,

You have department Id nullable field and you are using requierd field validator. You are expecting nuallable with required field. I dont think both will work togather. DepartmentId is really nullable field. Please check datatype for departmentId and change as below
[Required]
[Display(Name = "Department")]
public int DepartmentId { get; set; }
0
Amit Kumar7y ago
Hi @Html.DropDownListFor(model => model.DepartmentId, new SelectList(ViewBag.Departmentlist, "DepartmentId", "DepartmentName"), "Select Department", new { @class = "form-control" })
0
Laxmidhar Sahoo7y ago
@Html.DropDownListFor(x => x.DepartmentId, new SelectList(ViewBag.DepartmentId, "DepartmentId", "DepartmentIdName"))
0
Piyush Pansuriya7y ago
Try below one:
@Html.LabelFor(model => model.DepartmentId, "DepartmentId", htmlAttributes: new { @class = "control-label col-md-2" })
@Html.DropDownList("DepartmentId", ViewBag.DepartmentId as SelectList, "Select Department", htmlAttributes: new { @class = "form-control" })
@Html.ValidationMessageFor(model => model.DepartmentId, "* Required", new { @class = "text-danger" })
+2