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.SqlClient;

namespace Dbconnection
    public partial class Form1 : Form

        public Form1()

        SqlDataAdapter da;
        SqlConnection con;
        DataSet ds1;

        private void Form1_Load(object sender, EventArgs e)

            con = new SqlConnection("Data Source=hhh-pc\\sqlexpress;Initial Catalog=employees1;Integrated Security=True");

            ds1 = new DataSet();
            string sql = "select * from tbl_employee";
            da = new SqlDataAdapter(sql, con);

            da.Fill(ds1, "Worker");


        private void Navigate_records()
            DataRow dRaw = ds1.Tables["workers"].Rows[0];
            textBox1.Text = dRaw.ItemArray.GetValue(1).ToString();
            textBox2.Text = dRaw.ItemArray.GetValue(2).ToString();
            textBox3.Text = dRaw.ItemArray.GetValue(3).ToString();
            textBox4.Text = dRaw.ItemArray.GetValue(4).ToString();



nothing is on the form. my database has data

nevermind. it worked. Had to change "worker" to "workers"