รบกวนสอบถามผู้รู้ครับ ใน wind form C# ใน Data Grid View

Public List<DataGridViewRow> lst = new   List<DataGridViewRow>();
 for (int i = 0; i < dgv.Rows.Count; i++)
            {
                if ((dgv[0, i].Value != null))
                    lst.Add( dgv.Rows[i]);
            }

public static string SetValueForText1 = "";  
public static string SetValueForText2 = "";  
public static string SetValueForText3 = "";  

private void button1_Click(object sender, EventArgs e)  
{  
   SetValueForText1 = textBox1.Text;  
   SetValueForText2 = textBox2.Text;  
   SetValueForText3 = textBox3.Text;  
  
   Form2 frm2 = new Form2();  
   frm2.Show();  
}  

private void Form2_Load(object sender, EventArgs e)  
{  
   label1.Text = Form1.SetValueForText1;  
   label2.Text = Form1.SetValueForText2;  
   label3.Text = Form1.SetValueForText3;  
}