how to load data in dropdownlist in asp.net?

Question

hello dear I am in problem to load data in dropdown list by coding. ItemCode if any body help me best regurds.

Satyapriya Nayak · Answer

using System.Web.Security; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Xml.Linq; using System.Data.SqlClient; namespace Dropdownlist_click_data_in_textbox { public partial class _Default : System.Web.UI.Page { string strConnString = ConfigurationManager.ConnectionStrings[ConnectionString].ConnectionString; string str; SqlCommand com; protected void Page_Load(object sender EventArgs e) { SqlConnection con = new SqlConnection(strConnString); if (!IsPostBack) { DropDownList1.Items.Add(Choose ItemCode); con.Open(); str = select * from employee; com = new SqlCommand(str con); SqlDataReader reader = com.ExecuteReader(); while (reader.Read()) { DropDownList1.Items.Add(reader[ItemCode].ToString()); } reader.Close(); con.Close(); } }