ASP.NET ListBox Insert Multiple selected item into database

In this article, I will show you how to insert multiple selected item in  database table. I have already done one projects on this topic i.e online movie ticket booking system. In this project, i selected multiple tickets by using comma symbol in TextBox. The same article i will do in different manner. In this we have a ListBox with multiple selection mode.
What i do in code behind :

  1. Store the selected of ListBox items to the string type list.
  2. For the each item, i will create a Query statement, Suppose your List contain two items i.e "Apple" and "Mango", Both are selected then use String builder class to Append Query.
  3. Like "insert into [tablename] (fruitname)values('Apple')";  and for second item  "insert into [tablename] (fruitname)values('mango')";

Source Code

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="multipleselect.aspx.cs" Inherits="multipleselect" %>

<!DOCTYPE html>

<html xmlns="">
<head runat="server">
    <form id="form1" runat="server">

        <asp:ListBox ID="ListBox1" runat="server" Height="100px" SelectionMode="Multiple" Width="174px">
        <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Save" />

Code Behind Code

using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data.SqlClient;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class multipleselect : System.Web.UI.Page
    protected void Page_Load(object sender, EventArgs e)

    protected void Button1_Click(object sender, EventArgs e)
        List<string> l1 = new List<string>();
        foreach (ListItem item in ListBox1.Items)
            if (item.Selected)


    private void recordinserted(List<string> l1)
       StringBuilder stringbi = new StringBuilder(string.Empty);
        foreach (string item in l1)
const string qry = "insert into [Fruits](FruitName)values";
        //throw new NotImplementedException();
        SqlConnection con = new SqlConnection();
        con.ConnectionString = ConfigurationManager.ConnectionStrings["ConnectionStringtr"].ToString();
        SqlCommand cmd = new SqlCommand();
        cmd.CommandText = stringbi.ToString();
        int a= cmd.ExecuteNonQuery();

Code Generates the following output : 

ASP.NET ListBox Insert Multiple selected item into database

ASP.NET ListBox Insert Multiple selected item into database ASP.NET ListBox Insert Multiple selected item into database Reviewed by Jacob Lefore on February 16, 2016 Rating: 5

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