Caching

To improve performance we use caching.

OutPut Caching

To enable output caching by adding an [OutputCache] attribute to either an individual controller action or an entire controller class

     [OutputCache(Duration=50, VaryByParam="none",  Location=OutputCacheLocation.Client)]

The Location property to any one of the following values:
· Any
· Client
· Downstream
· Server
· None
· ServerAndClient

Application/Data Caching

It is meant to store Data-objects on cache.

public ActionResult Index3()
{
    if (System.Web.HttpContext.Current.Cache["time"] == null)
    {
        System.Web.HttpContext.Current.Cache["time"] = DateTime.Now;
    }

    ViewBag.Time = ((DateTime)System.Web.HttpContext.Current.Cache["time"]).ToString();
    return View();
}