How to pass values of the selected Xtragridview to text boxes on to another form

See more:

C#

DevExpress

find below a sample of my code that i used to pass values of the selected row in the gridview to text boxes on another form ;
there is the scenario : i have 2 forms the first form contains a button and textboxes , the button opens the second forms "form 2 ". The form2 contains the Xtragrid , from this form i want to perform a double click event to load each selected row values in the first form .. I have used " Observer pattern concept"; but i still dont get the correct output ,actually it does work but only when i register the first form onto the second form load event ;

// there is the interface class 
namespace InterFaces 
{ 
interface IUserSubject 
{ 
    void RegistrObserver(IUserObserver observer); 
    void RemoveObserver(IUserObserver observer); 
    void NotifyObservers(Issue outData); 
} 
 
public interface IUserObserver 
{ 
    void Update(Issue outData); 
} 
 
public class Issue 
{ 
    public int value1; 
    public int value2; 
    public int value3; 
} 
 
} 

 // form 2 
 
  using System.Collections.Generic; 
  using System.Linq; 
  using System.Windows.Forms; 
  using Helpers; 
  using InterFaces; 
 
  namespace GridProject 
    { 
        public partial class Form2 : Form, IUserSubject 
     { 
    public Form2() 
    { 
        InitializeComponent(); 
    } 
 
    public void Update(Issue outData) 
    { 
 
    } 
 
    private void Form2_Load(object sender, EventArgs e) 
    { 
        Form1 form = new Form1(); 
        RegistrObserver(form); 
        form2.Show(); 
        DataHelper dh = new DataHelper(DSparametr.doubleDS); 
        gridControl1.DataSource = dh.DataSet; 
        gridControl1.DataMember = dh.DataMember; 
        gridView1.OptionsBehavior.Editable = true; 
        gridView1.ShownEditor += new EventHandler(gridView1_ShownEditor); 
    } 
 
    void gridView1_ShownEditor(object sender, EventArgs e) 
    { 
        gridView1.ActiveEditor.DoubleClick += new EventHandler(ActiveEditor_DoubleClick); 
    } 
 
    void ActiveEditor_DoubleClick(object sender, EventArgs e) 
    { 
        Issue outData = new Issue() 
        { 
            value1 = Convert.ToInt32(gridView1.GetRowCellValue(gridView1.FocusedRowHandle, gridView1.Columns[0])), 
            value2 = Convert.ToInt32(gridView1.GetRowCellValue(gridView1.FocusedRowHandle, gridView1.Columns[1])), 
            value3 = Convert.ToInt32(gridView1.GetRowCellValue(gridView1.FocusedRowHandle, gridView1.Columns[2])), 
        }; 
 
        NotifyObservers(outData); 
    } 
 
    public void RegistrObserver(IUserObserver observer) 
    { 
        if (observer == null) 
            throw new ArgumentNullException("Observer"); 
        OnNotifyObsirvers += new NotifyObsirversHandler(observer.Update); 
    } 
 
    public void RemoveObserver(IUserObserver observer) 
    { 
        if (observer == null) 
            throw new ArgumentNullException("Observer"); 
        OnNotifyObsirvers -= new NotifyObsirversHandler(observer.Update); 
    } 
 
    public void NotifyObservers(Issue outData) 
    { 
        if (OnNotifyObsirvers == null) 
            throw new ArgumentNullException("outData"); 
        OnNotifyObsirvers(outData); 
    } 
 
    private delegate void NotifyObsirversHandler(Issue outData); 
    private event NotifyObsirversHandler OnNotifyObsirvers; 
 
 
} 
} 

// Form 1


   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 DevExpress.XtraGrid.Views.Grid;
   using InterFaces;

   namespace GridProject
  {
     public partial class Form1 : Form, IUserObserver
  {
  public Form1()
  {
      InitializeComponent();
  }

  private void SendToEditors(GridView view)
  {
  }

  public void Update(Issue outData)
  {
      textBox1.Text = outData.value1.ToString();
      textBox2.Text = outData.value2.ToString();
      textBox3.Text = outData.value3.ToString();
  }

  private void Form1_Load(object sender, EventArgs e)
  {

  }

  private void simpleButton1_Click(object sender, EventArgs e)
  {
      Form2 frm = new Form2();
      frm.ShowDialog();
  }
  }
  }