how to load ComboxValue From Db?..

Hi Friends,

I would Like to Know the Perfect coding for the Loading the Combobox Value from the database.

I have stored the some text through the combobox..its stored in the db ..i want to retrieve from db and

Load it to Concerned Combobox Control...

Thanks in advance

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.OleDb;
namespace Combobox
{
    public partial class Form1 : Form
    {
        string ConnectionString = System.Configuration.ConfigurationSettings.AppSettings["dsn"];
        OleDbCommand com;
        OleDbDataAdapter oda;
        DataSet ds;
        string str;
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            comboBox1.Items.Add("Choose CourseID");
            OleDbConnection con = new OleDbConnection(ConnectionString);
            con.Open();
            str = "select * from Courses";
            com = new OleDbCommand(str, con);
            OleDbDataReader reader = com.ExecuteReader();
            while (reader.Read())
            {
                comboBox1.Items.Add(reader["CourseID"]);
            }


        }


    }
}

1 Reply

Know the answer? Post it — somebody with the same question will find it here.

Satyapriya Nayak12y ago
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.OleDb;
namespace Combobox
{
    public partial class Form1 : Form
    {
        string ConnectionString = System.Configuration.ConfigurationSettings.AppSettings["dsn"];
        OleDbCommand com;
        OleDbDataAdapter oda;
        DataSet ds;
        string str;
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            comboBox1.Items.Add("Choose CourseID");
            OleDbConnection con = new OleDbConnection(ConnectionString);
            con.Open();
            str = "select * from Courses";
            com = new OleDbCommand(str, con);
            OleDbDataReader reader = com.ExecuteReader();
            while (reader.Read())
            {
                comboBox1.Items.Add(reader["CourseID"]);
            }


        }


    }
}