private void btnsave_Click(object sender, EventArgs e) { bool isval; bool isvalpassed; taimoor_net.Service1 ser = new taimoor_net.Service1(); ser.isvaliduser(txtusername.Text, txtpassword.Text, out isval, out isvalpassed); if (txtusername.Text == "Taimoor Ahmad" && txtpassword.Text == "Blackhawk007") { Adminpage frm = new Adminpage(); frm.Show(); this.Hide(); } if (isval) { studentaccount frm = new studentaccount(); frm.Show(); this.Hide(); } else { MessageBox.Show("Invalid User"); } }