DataGrid Update : Data Bind DataGrid : Database C# Source Code

    

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.DataGrid dataGrid1;
      private System.Windows.Forms.Button buttonUpdate;
      private System.Data.DataSet dataSet1;
      private System.Data.SqlClient.SqlCommand sqlCommand1;
      private System.ComponentModel.Container components = null;

      private SqlCommandBuilder cb;
      private SqlDataAdapter da;

      public Form1() {
         InitializeComponent();
      }
      private void InitializeComponent(){
         this.dataGrid1 = new System.Windows.Forms.DataGrid();
         this.buttonUpdate = new System.Windows.Forms.Button();
         this.dataSet1 = new System.Data.DataSet();
         this.sqlCommand1 = new System.Data.SqlClient.SqlCommand();
         ((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
         ((System.ComponentModel.ISupportInitialize)(this.dataSet1)).BeginInit();
         this.SuspendLayout();

         this.dataGrid1.DataMember = "";
         this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText;
         this.dataGrid1.Location = new System.Drawing.Point(8, 8);
         this.dataGrid1.Name = "dataGrid1";
         this.dataGrid1.Size = new System.Drawing.Size(440, 208);
         this.dataGrid1.TabIndex = 0;

         this.buttonUpdate.Location = new System.Drawing.Point(191, 232);
         this.buttonUpdate.Name = "buttonUpdate";
         this.buttonUpdate.TabIndex = 1;
         this.buttonUpdate.Text = "Update";
         this.buttonUpdate.Click += new System.EventHandler(this.buttonUpdate_Click);

         this.dataSet1.DataSetName = "NewDataSet";
         this.dataSet1.Locale = new System.Globalization.CultureInfo("en-US");

         this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
         this.ClientSize = new System.Drawing.Size(456, 272);
         this.Controls.Add(this.buttonUpdate);
         this.Controls.Add(this.dataGrid1);
         this.Name = "Form1";
         this.Text = "Form1";
         this.Load += new System.EventHandler(this.Form1_Load);
         ((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();
         ((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);
         sqlCommand1 = new SqlCommand(sql, conn);

         da = new SqlDataAdapter();
         da.SelectCommand = sqlCommand1;

         cb = new SqlCommandBuilder(da);

         da.Fill(dataSet1, "employee");

         dataGrid1.SetDataBinding(dataSet1, "employee");
      }

      private void buttonUpdate_Click(object sender, System.EventArgs e) {
         da.Update(dataSet1, "employee"); 
      }
    }