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Save multiple select item dropdown

Posted By:satyapriyanayak       Posted Date: October 31, 2013    Points: 40    Category: Visual Studio    URL: http://www.dotnetspark.com  

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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