public async Task <ActionResult> DetailsSysRole(Guid?id) { var sysRoleService = new SysRoleService(); if (id == null || !await sysRoleService.ExistsSysRole(id.Value)) { return(RedirectToAction(nameof(SysRoleList))); } return(View(await sysRoleService.GetOneSysRoleById(id.Value))); }