Retrieve value from sql database to dropdownlist and label

Question

Anyone help me,

i have database table like this [sql server 2008]
table1

state-id	country	pincode	StateName
1	ttt	587030	xyz
2	yyy	678543	htk

in asp.net i have dropdownlist and lable.
how i can fetch stateName value to dropdown and its respective pincode to lable.

Satyapriya Nayak · Answer

Untitled Page onselectedindexchanged="DropDownList1_SelectedIndexChanged"> using System; using System.Collections; using System.Configuration; using System.Data; using System.Linq; using System.Web; 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 WebApplication10 { 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) { DropDownList1.AutoPostBack = true; Label1.Text = ""; SqlConnection con = new SqlConnection(strConnString); if (!IsPostBack) { DropDownList1.Items.Add("Choose stateName"); con.Open(); str = "select * from table1"; com = new SqlCommand(str, con); SqlDataReader reader = com.ExecuteReader(); while (reader.Read()) { DropDownList1.Items.Add(reader["stateName"].ToString()); } reader.Close(); con.Close(); } } protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e) { SqlConnection con = new SqlConnection(strConnString); con.Open(); str = "select * from table1 where stateName='" + DropDownList1.SelectedItem.Text + "'"; com = new SqlCommand(str, con); SqlDataReader reader = com.ExecuteReader(); while (reader.Read()) { Label1.Text = reader["pincode"].ToString(); } reader.Close(); con.Close(); } } }

samanta · Answer

thank you

Retrieve value from sql database to dropdownlist and label

Answers (2)