CODEWITHSUNDEEP
asp.net-mvc-4
V.Prasad
V.Prasad

Reputation: 151

Show custom message without breaking page using exception filter

I am using one MVC application where i have to handle all exception occurs in the code. I have found about exception filter and implemented there. Below is the created exception filter code:

public class HandleException : HandleErrorAttribute
{
        #region Log Initialization
        FileLogService logService = new 
        FileLogService(typeof(HandleException));
        #endregion
        public override void OnException(ExceptionContext filterContext)
        {
            filterContext.ExceptionHandled = true;
            Log(filterContext.Exception);
            base.OnException(filterContext);
        }

        private void Log(Exception exception)
        {
            logService.Error(exception.ToString());
        }
 }

Now i used this filter as attribute in my controller like below:

[AuthSession]
    [HandleException]
    public class OrganizationalController : BaseController
    {
       
        public ActionResult OrgSummary()
        {
            try
            {
                int a = 1, b = 0;
                int result = a / b;
            }
            catch (Exception ex)
            {
                throw ex;
            }
            ViewData["ShowGrid"] = false;
            return View();
        }
   }

As you can see in above code i am trying to generate exception in the code. In catch exception block when i used throw keyword then exception filter getting executed else not.

Now i need here when any exception occurs in the application i need to show a custom popup message for user. In popup message once user click on ok button then user should be available on the same page. The page should not break or get blank.

How could i implement this functionality?

Upvotes: 0

Views: 417

Answers (1)

Pooja Trivedi
Pooja Trivedi

Reputation: 71

Try this code. May be it helps 

public class MyExceptionFilter: FilterAttribute, IExceptionFilter   
 {  
public void OnException(ExceptionContext filterContext)   
{  
     // below code will redirect to the error view
        filterContext.Result = new RedirectResult("ErrorPage.html");  
        filterContext.ExceptionHandled = true;  

}  
}

and then you need to apply the above as an attribute to your action methods like: [MyExceptionFilter]
public ActionResult XYZ() { }

Upvotes: 1

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