RAZOR call a controller method from the dropdownlist

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MVC

controller

Razor

DropDownList

Dear programming community,

I am trying to populate the dropdown list by calling a method from the controller.
The reason why i am doing this is because i want to pass it an id and therefore ill be getting a different list for each record.

View

grid.Column(header: "Wards", format: @<text>@Html.DropDownList(@Url.Action("getDoctorsWards", "Doctor", new { id = 1 }), "Ward_id")</text>)

Controller

public ViewResult getDoctorsWards(int id)
        {
            var myModel = db.Wards.Where(a => a.Doctor.Doctor_id == id).ToList();
            return View(myModel);
        }

Any comments or suggestions are welcome.