ASP.NET MVC Framework - HttpContext class Uses

• The HttpContext associated with the view page can be accessed by the HttpContext property
• Use the current HttpContext object to determine if custom errors are enabled.
• Use the current HttpContext object to determine if debugging is enabled.
• Use the current HttpContext object to access the current TraceContext object.
• Use the current HttpContext object to access the current HttpApplicationState object.
• Use the current HttpContext object to access the current HttpSessionState object.
• Use the current HttpContext object to access the current Cache object.
• Use the current HttpContext object to determine the timestamp for the current HTTP Request.

using System.Web.Mvc;

namespace WebAppHttp.Controllers
{
    public class ContextController : Controller
    {
        // GET: HttpContext
        public string Index()
        {
            // The HttpContext associated with the view page can be accessed by the HttpContext property.
            System.Text.StringBuilder sb = new System.Text.StringBuilder();
            // Use the current HttpContext object to determine if custom errors are enabled.
            sb.Append("Is custom errors enabled: " +
                HttpContext.IsCustomErrorEnabled.ToString() + "
");

            // Use the current HttpContext object to determine if debugging is enabled.
            sb.Append("Is debugging enabled: " +
                HttpContext.IsDebuggingEnabled.ToString() + "
");

            // Use the current HttpContext object to access the current TraceContext object.
            sb.Append("Trace Enabled: " +
                HttpContext.Trace.IsEnabled.ToString() + "
");

            // Use the current HttpContext object to access the current HttpApplicationState object.
            sb.Append("Number of items in Application state: " +
                HttpContext.Application.Count.ToString() + "
");

            // Use the current HttpContext object to access the current HttpSessionState object.
            // Session state may not be configured.
            try
            {
                sb.Append("Number of items in Session state: " +
                    HttpContext.Session.Count.ToString() + "
");
            }
            catch
            {
                sb.Append("Session state not enabled. 
");
            }

            // Use the current HttpContext object to access the current Cache object.
            sb.Append("Number of items in the cache: " +
                HttpContext.Cache.Count.ToString() + "
");

            // Use the current HttpContext object to determine the timestamp for the current HTTP Request.
            sb.Append("Timestamp for the HTTP request: " +
                HttpContext.Timestamp.ToString() + "
");

            return sb.ToString();
        }
    }
}

OUTPUT

Is custom errors enabled: False

Is debugging enabled: True

Trace Enabled: False

Number of items in Application state: 0

Number of items in Session state: 0

Number of items in the cache: 7

Timestamp for the HTTP request: 2021-06-19 11:37:40 PM