private void showMenu() { if (myPermissionList.Count > 0) { switch (currentUser.Role) { case 1: //管理员权限 tsObjectInfo.Visible = true; tsPurchase.Visible = true; tsSalesManager.Visible = true; tsStockManager.Visible = true; tsSystem.Visible = true; break; case 2: //采购 tsPurchase.Visible = true; tsStockManager.Visible = true; break; case 3: //销售员 tsSalesManager.Visible = true; break; case 4: //仓库管理员 tsStockManager.Visible = true; break; } } else { //没有任何权限 MessageBox.Show("请联系管理员加权限"); //回到登录窗口 FrmLogin login = new FrmLogin(); login.Show(); this.Close(); } }