In this blog we will know how to save multiple selected list items in database from dropdown list when selected.

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Save_multiple_select_item_dropdown._Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >

<head runat="server">

<title>Untitled Page</title>

</head>

<body>

<form id="form1" runat="server">

<div>

<asp:DropDownList ID="DropDownList1" runat="server"

onselectedindexchanged="DropDownList1_SelectedIndexChanged">

</asp:DropDownList>

</div>

</form>

</body>

</html>

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 Save_multiple_select_item_dropdown

{

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;

SqlConnection con = new SqlConnection(strConnString);

if (!IsPostBack)

{

DropDownList1.Items.Add("Choose Name");

con.Open();

str = "select * from employee";

com = new SqlCommand(str, con);

SqlDataReader reader = com.ExecuteReader();

while (reader.Read())

{

DropDownList1.Items.Add(reader["empname"].ToString());

}

reader.Close();

con.Close();

}

}

protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)

{

SqlConnection con = new SqlConnection(strConnString);

con.Open();

for (int i = 0; i < DropDownList1.Items.Count; i++)

{

if (DropDownList1.Items[i].Selected == true)

{

str = "insert into employee1 values('" + DropDownList1.Items[i].ToString() + "')";

com = new SqlCommand(str, con);

com.ExecuteNonQuery();

Response.Write("<script>alert('Items Inserted');</script>");

}

}

}

}

}

Thanks for reading