winform C#에서 하위 폼을 닫고 상위 폼을 새로 고치는 샘플 코드에 대한 자세한 설명

private void button3_Click(object sender, EventArgs e) 
    { 
      Form2 f2 = new Form2(); 
      f2.ShowDialog(); 
      if (f2.DialogResult == DialogResult.OK) 
      { 
        this.datagridBind();//重新绑定 
      } 
       
    }

<BR><BR>private void button1_Click(object sender, EventArgs e) 
    { 
      string strConn = "server=.;database=filesSync;uid=sa;pwd=123"; 
 
      SqlConnection conn = new SqlConnection(strConn); 
 
      string sql = "insert into asyncFileList values (&#39;" + textBox1.Text.ToString() + "&#39;)"; 
 
      conn.Open(); 
 
      SqlCommand myCmd = new SqlCommand(sql, conn); 
 
      myCmd.ExecuteNonQuery(); 
 
      conn.Close(); 
      this.DialogResult = DialogResult.OK; 
      MessageBox.Show("添加成功"); 
      this.Close(); 
       
    }