ADO Database C#

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.SqlClient;
   public class Form1 : System.Windows.Forms.Form {
      private System.Windows.Forms.TextBox textBox1;
      private System.Windows.Forms.TextBox textBox2;
      private System.Data.DataSet dataSet1;
 
      private System.ComponentModel.Container components = null;
      public Form1() {
         InitializeComponent();
      }
      private void InitializeComponent() {
         this.textBox1 = new System.Windows.Forms.TextBox();
         this.textBox2 = new System.Windows.Forms.TextBox();
         this.dataSet1 = new System.Data.DataSet();
         ((System.ComponentModel.ISupportInitialize)(this.dataSet1)).BeginInit();
         this.SuspendLayout();
 
         this.textBox1.Location = new System.Drawing.Point(16, 0);
         this.textBox1.Name = "textBox1";
         this.textBox1.TabIndex = 0;
         this.textBox1.Text = "textBox1";
 
         this.textBox2.Location = new System.Drawing.Point(16, 24);
         this.textBox2.Name = "textBox2";
         this.textBox2.TabIndex = 1;
         this.textBox2.Text = "textBox2";
 
         this.dataSet1.DataSetName = "NewDataSet";
         this.dataSet1.Locale = new System.Globalization.CultureInfo("en-GB");
 
         this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
         this.ClientSize = new System.Drawing.Size(128, 45);
         this.Controls.AddRange(new System.Windows.Forms.Control[] {this.textBox2,this.textBox1});
         this.Name = "Form1";
         this.Text = "Form1";
         this.Load += new System.EventHandler(this.Form1_Load);
         ((System.ComponentModel.ISupportInitialize)(this.dataSet1)).EndInit();
         this.ResumeLayout(false);
      }
      static void Main() {
         Application.Run(new Form1());
      }
      private void Form1_Load(object sender, System.EventArgs e) {
         string connString = "server=(local)\\SQLEXPRESS;database=MyDatabase;Integrated Security=SSPI";
         string SQL = @"select * from employee";
         SqlConnection Conn = new SqlConnection(connString);
         SqlDataAdapter da = new SqlDataAdapter(SQL, Conn);
         da.Fill(dataSet1, "Employee");
         DataTable myTable = dataSet1.Tables["Employee"];
         DataView dv = new DataView(myTable, "FirstName='Z'","FirstName", DataViewRowState.CurrentRows);
         textBox1.DataBindings.Add("Text", dv, "FirstName");
         textBox2.DataBindings.Add("Text", dv, "LastName");
      }
   }