private void btKiemTraFileT_LinkClicked(object sender, NavBarLinkEventArgs e) { if (!CTLQuanLyForm.formName.Contains(frmKiemTrafileT.Name)) { if (frmKiemTrafileT != null) { frmKiemTrafileT = new FrmCheckFileT(); xtraTabbedMdiManager.MdiParent = this; CTLQuanLyForm.formName.Add(frmKiemTrafileT.Name); frmKiemTrafileT.Text = "K/tra MMS có file T WinDSS"; frmKiemTrafileT.MdiParent = this; frmKiemTrafileT.Show(); } else { frmKiemTrafileT = new FrmCheckFileT(); xtraTabbedMdiManager.MdiParent = this; CTLQuanLyForm.formName.Add(frmKiemTrafileT.Name); frmKiemTrafileT.Text = "K/tra MMS có file T WinDSS"; frmKiemTrafileT.MdiParent = this; frmKiemTrafileT.Show(); } } else { if (frmKiemTrafileT == null) { frmKiemTrafileT = new FrmCheckFileT(); frmKiemTrafileT.MdiParent = this; frmKiemTrafileT.Activate(); frmKiemTrafileT.BringToFront(); } else { frmKiemTrafileT.MdiParent = this; frmKiemTrafileT.Activate(); frmKiemTrafileT.BringToFront(); } } }