Detecting DropDownList (Statement Issue)

Question

i trying to use DropDownList in code behind but i get an error - the visual studio dont recognized the dropdownlist.

I was trying to put the "System.Web.UI.WebControls.DropDownList" statment but nothing changed.

This is my current statment:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data;
using System.Data.SqlClient;
using System.Web.Configuration;
using System.Text;
using System.Configuration;

Answer 1

You are missing these two namespaces using System.Web.UI; using System.Web.UI.WebControls; if you are using ASP.NET try this code hope it will help.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public void loadSuppliers(DropDownList ddl)
{

}