Session2 For MVC

session2 about MVC

1. Filter session

In .net, we have a namespace about FilterAttribute. these two kinds of filter, we use frequently,
that is AuthorizeAttribute,ActionFilterAttribute. In session1, we have example about the AuthorizeAttribute, here we show a little example about ActionFilterAttribute. mark for a mistake in session1,
we can filter Action or controller by roles with the help of ActionFilterAttribute. Code here:
Session is a special variable, we can add properties in DoLogin action.

namespace WebApplication1.Filters
{
    public class AdminFilter:ActionFilterAttribute
    {
        public override void OnActionExecuting(ActionExecutingContext filterContext)
        {
            if (!Convert.ToBoolean(filterContext.HttpContext.Session["IsAdmin"]))
            {
                filterContext.Result = new ContentResult()
                {
                    Content="Unauthorized to access specified resource."
                };
            }
        }
    }
}

we add annonation in our action or controller.

[AdminFilter]
        [HeaderFooterFilter]
        public ActionResult AddNew()
        {
            CreateEmployeeViewModel employeeListViewModel = new CreateEmployeeViewModel();
            //employeeListViewModel.FooterData = new FooterViewModel();
            //employeeListViewModel.FooterData.CompanyName = "StepByStepSchools";//Can be set to dynamic value
            //employeeListViewModel.FooterData.Year = DateTime.Now.Year.ToString();
            //employeeListViewModel.UserName = User.Identity.Name; //New Line
            return View("CreateEmployee", employeeListViewModel);
        }