Get Drop Down Value

Question

Hello Every One i have use this code for get value in drop down list .But i have face issue.This is my code public IEnumerable GetPlanList() { var PlanList = _context.PlanMaster.OrderByDescending(x => x.PlanId) .Select(x => new SelectListItem() { Text = x.PlanName, Value = x.PlanId.ToString() }).ToList(); --- it's me c# code return PlanList; This is my script $(document).ready( function () { debugger ; $( "#DropDown" ).change( function () { $.get( "/AddCoupan/GetPlanList" , { PlanId: $( "#DropDown" ).val() }, function (data) { $.each(data, function (index, row) { $( "#DropDown" ).append( " + row.planId + "'>" + row.planName + " " ) }); }); }) }); @Html.DropDownListFor(x=>x.PlanId, Model.PlanMaster,"--Select Plan--",new { @class = "form-control", @id = "DropDown", @required = "required" })-- But Here I have Face Issue object reference not set to an instance of an object It's view model class public int PlanId { get ; set ; } public IEnumerable PlanMaster { get ; set ; } public string PlanName { get ; set ; }

Sachin Singh · Answer

use simple one @Html.DropDownListFor(M => M.MobileList, new SelectList(Model.MobileList, "Value" , "Text" )) public class Mobiledata { [Key] public int MobileID { get; set; } public string MobileName { get; set; } public string MobileIMEno { get; set; } public string MobileManufactured { get; set; } public Nullable Mobileprice { get; set; } [NotMapped] public SelectList MobileList { get; set; } } // in action MD.MobileList = new SelectList(MCon.GetMobileList(), "MobileID" , "MobileName" );

Mageshwaran R · Answer

Hi Sourabh, This code is working: Models: public class Vechiles { public string Name { get ; set ; } public long ID{ get ; set ; } public long VechileId { get ; set ; } } Methods: public List getVechiles() { List vechile= new List { new Vechiles{ Name = "Car" , ID= "1}, new Vechiles{ Name = "Bike" , ID= 2 }, }; return vechile } public List GetVechiles() { List listItems = new List (); List vechiles= getVechiles() if (vechiles.Count != 1 && emptyRow) { listItems.Add( new SelectListItem() { Text = "" , Value = "0" }); } foreach (Vechiles vechile in vechiles) { listItems.Add( new SelectListItem() { Text = vechile.Name, Value = vechile.ID.ToString() }); } return listItems; } Controller: List vechiles= GetVechiles(); ViewBag.Vechiles = vechiles; View: @Html.DropDownListFor( x = > x.VechileId, new SelectList(ViewBag.Vechiles, "Value", "Text"), new { @ class = "form-control select2bs4" , style = "width: 200px" })