In this article i'm going to show you how to bind data from database into listbox control in asp.net
HTML Markup Language - Add ListBox
ListBox control allows single or multiple item selection. To enable multiple item selection, set the SelectionMode property to Multiple.
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_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></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ListBox ID="ListBox1" runat="server"></asp:ListBox>
</div>
</form>
</body>
</html>
C# Coding :
C# Coding : Namespace
Adding Namespace which help to Bind data from database to application i.e SqlConnection , SqlCommand , SqlDataAdapter and DataSet .
using System.Data; using System.Data.SqlClient;
C# Coding : BindCountryListBox
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
BindCountryListBox();
}
}
private void BindCountryListBox()
{
SqlConnection conn = new SqlConnection("Data Source=.; Database=master; User ID=sa; Password=12345;");
SqlDataAdapter da = new SqlDataAdapter("select countryid, countryname from CountryTable", conn);
DataSet ds = new DataSet();
da.Fill(ds);
ListBox1.DataSource = ds;
ListBox1.DataTextField = "countryid";
ListBox1.DataValueField = "countryname";
ListBox1.DataBind();
}
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