private void toolBar_ButtonClick(object sender, System.Windows.Forms.ToolBarButtonClickEventArgs e) { if (e.Button == tbLogout) { new frmLogin().Show(); this.Close(); } else if (e.Button == tbMuon) { frmMuonSach frmmuon = new frmMuonSach(); frmmuon.MdiParent = this; frmmuon.Show(); } else if (e.Button == tbTra) { frmTraSach fTra = new frmTraSach(); fTra.MdiParent = this; fTra.Show(); } else if (e.Button == tbThoat) { DialogResult rs = MessageBox.Show(this, "Bạn có chắc thoát chương trình chưa", "Thong bao", MessageBoxButtons.YesNo, MessageBoxIcon.Question); if (rs == DialogResult.Yes) { Application.Exit(); } } }
private void menuItem15_Click(object sender, System.EventArgs e) { frmTraSach frmtra = new frmTraSach(); frmtra.MdiParent = this; frmtra.Show(); }