private void btnSach_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e) { Form frm = this.KiemTraTonTai(typeof(frmSach)); if (frm != null) { frm.Activate(); } else { frmSach f = new frmSach { MdiParent = this }; f.Show(); } }
private void btnSach_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e) { Form frm = this.KiemTraTonTai(typeof(frmSach)); if (frm != null) { frm.Activate(); } else { SplashScreenManager.ShowDefaultWaitForm(); frmSach f = new frmSach { MdiParent = this }; f.Show(); SplashScreenManager.CloseDefaultSplashScreen(); } }