MongoGUIView.CtlUserView.RemoveUser C# (CSharp) Method

        private void RemoveUser()
        {
            var strTitle = GuiConfig.GetText("Drop User", "DropUser");
            var strMessage = GuiConfig.GetText("Are you sure to delete user(s) from this database", "DropUserConfirm");
            if (MyMessageBox.ShowConfirm(strTitle, strMessage))
            {
                if (tabDataShower.SelectedTab == tabTableView)
                {
                    //lstData
                    foreach (ListViewItem item in lstData.SelectedItems)
                    {
                        MongoUserEx.RemoveUserFromSystem(item.SubItems[1].Text, false);
                    }
                    lstData.ContextMenuStrip = null;
                }
                else
                {
                    MongoUserEx.RemoveUserFromSystem(trvData.DatatreeView.SelectedNode.Tag.ToString(), false);
                    trvData.DatatreeView.ContextMenuStrip = null;
                }
                RemoveUserToolStripMenuItem.Enabled = false;
                RefreshGui();
            }
        }