when i select country on drop down list...

Question

when i select country on drop down list... ...... anotner drop dropdown display related states of country.... plz write quarie....with out using jquarie

Satyapriya Nayak · Answer

Default.aspx code Untitled Page onselectedindexchanged="DropDownList_country_SelectedIndexChanged"> Default.aspx.cs code using System; 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; 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) { DropDownList_country.Items.Add("Choose country"); con.Open(); str = "select country from area group by country"; com = new SqlCommand(str, con); SqlDataReader reader = com.ExecuteReader(); while (reader.Read()) { DropDownList_country.Items.Add(reader["country"].ToString()); } reader.Close(); con.Close(); } DropDownList_state.Items.Clear(); } protected void DropDownList_country_SelectedIndexChanged(object sender, EventArgs e) { SqlConnection con = new SqlConnection(strConnString); con.Open(); str = "select * from area where country='" + DropDownList_country.SelectedItem.Text + "'"; com = new SqlCommand(str, con); SqlDataReader reader = com.ExecuteReader(); while (reader.Read()) { DropDownList_state.Items.Add(reader["state"].ToString()); } reader.Close(); con.Close(); } }

JAYRAM · Answer

???????????//////// protected void DropDownList2_SelectedIndexChanged(object sender, EventArgs e) { SqlConnection con = new SqlConnection("Data Source=SSR1;Initial Catalog=srr;Integrated Security=True"); con.Open(); SqlCommand cmd = new SqlCommand("select StateID,StateName from State where CountryID=DropDownList1.selectedvalue ", con); }

Nilesh Avhad · Answer

You can write the code on country's dropdown selectedindexchanged like select stateid,statename from statetable where countryid=countrydropdown.selectedvalue

when i select country on drop down list...

Answers (3)