private void barButtonItem3_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e) { frmMuonSach fm = new frmMuonSach(); bool Exist = ExistForm(fm); if (Exist) { return; } fm.MdiParent = this; fm.Show(); }
private void pictureBox13_Click(object sender, EventArgs e) { Form Muon = new frmMuonSach(); Muon.ShowDialog(); }
private void mượnSáchToolStripMenuItem_Click(object sender, EventArgs e) { Form Muon = new frmMuonSach(); Muon.ShowDialog(); }