winform c#中子窗体关闭刷新父窗体的实例

privatevoidbutton3_Click(objectsender, EventArgs e)

    {

      Form2 f2 =newForm2();

      f2.ShowDialog();

      if(f2.DialogResult == DialogResult.OK)

      {

        this.datagridBind();//重新绑定

      }

    }

privatevoidbutton1_Click(objectsender, EventArgs e)

    {

      stringstrConn ="server=.;database=filesSync;uid=sa;pwd=123";

      SqlConnection conn =newSqlConnection(strConn);

      stringsql ="insert into asyncFileList values ('"+ textBox1.Text.ToString() +"')";

      conn.Open();

      SqlCommand myCmd =newSqlCommand(sql, conn);

      myCmd.ExecuteNonQuery();

      conn.Close();

      this.DialogResult = DialogResult.OK;

      MessageBox.Show("添加成功");

      this.Close();

    }