private void cmdAddnum_Click(object sender, EventArgs e) { Server.Service1 server = new Server.Service1(); bool add; bool addpassed; server.addroute(txtBusNumber.Text, txtRouteNumber.Text, out add, out addpassed); if (add) { MessageBox.Show("Bus number and route number has been added"); Server.Service1 myserver = new Server.Service1(); BindingSource bs = new BindingSource(); bs.DataSource = myserver.getbusroute(); dataGridView1.DataSource = bs; dataGridView1.Columns[2].Visible = false; dataGridView1.Columns[3].Visible = false; dataGridView1.Columns[5].Visible = false; dataGridView1.Columns[6].Visible = false; } else { MessageBox.Show(" enter something"); } }