public void display()
        {
            try
            {
                DBconnection ob = new DBconnection();


                DataTable      dt = new DataTable();
                SqlDataAdapter da = new SqlDataAdapter(ob.displayNotifi());
                da.Fill(dt);
                dataGrid.DataSource = dt;
                ob.getConnection().Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show("Error in Displaying Reports:\n" + ex, this.Text, MessageBoxButtons.OK, MessageBoxIcon.Information);
                Console.WriteLine("Error: \n" + ex);
            }
        }