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Chintoo Semi

Total Post:135

Points:947
Posted on    October-07-2014 11:02 PM

 ASP.NET MVC ASP.Net  ASP.NET MVC 
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How do I go about the HandleError filter in asp.net MVC Preview 5?
I set the customErrors in my Web.config file

<customErrors mode="On" defaultRedirect="Error.aspx">

  <error statusCode="403" redirect="NoAccess.htm"/>

  <error statusCode="404" redirect="FileNotFound.htm"/>

</customErrors>

and put [HandleError] above my Controller Class like this.

[HandleError]

        public class DSWebsiteController : Controller

        {

            [snip]

            public ActionResult CrashTest()

            {

                throw new Exception("Oh Noes!");

            }

        }

Then I let my controllers inherit from this class and call CrashTest() on them. Visual studio halts at the error and after pressing f5 to continue, I get rerouted to Error.aspx?aspxerrorpath=/sxi.mvc/CrashTest (where sxi is the name of the used controller. Off course the path cannot be found and I get "Server Error in '/' Application." 404.

This site was ported from preview 3 to 5. Everything runs (wasn't that much work to port) except the error handling. When I create a complete new project the error handling seems to work.



Kamlakar Singh
Kamlakar Singh

Total Post:194

Points:1396
Posted on    October-07-2014 11:03 PM

When you provide only the HandleError attribute to your class (or to your action method for that matter), then when an unhandled exception occurs MVC will look for a corresponding View named "Error" first in the Controller's View folder. If it can't find it there then it will proceed to look in the Shared View folder (which should have an Error.aspx file in it by default)

[HandleError(ExceptionType = typeof(SqlException), View = "DatabaseError")]]

[HandleError(ExceptionType = typeof(NullReferenceException), View = "LameErrorHandling")]]


You can also stack up additional attributes with specific information about the type of exception you are looking for. At that point, you can direct the Error to a specific view other than the default "Error" view.


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