private void btnRelogin_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e) { if (MessageDxUtil.ShowYesNoAndWarning("您确定需要重新登录吗?") != DialogResult.Yes) { return; } Portal.gc.MainDialog.Hide(); Logon dlg = new Logon(); dlg.StartPosition = FormStartPosition.CenterScreen; if (DialogResult.OK == dlg.ShowDialog()) { if (dlg.bLogin) { CloseAllDocuments(); InitUserRelated(); } } dlg.Dispose(); Portal.gc.MainDialog.Show(); }