Save multiple selected list items in database from dropdown list

Satyapriyanayak
Posted by Satyapriyanayak under ASP.NET category on | Points: 40 | Views : 7642
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>");
}
}
}
}
}

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