When there is an ApplicationException is thrown, the browser displays the actually code error in the web browser rather than redirect to the Error Page.
Is this suppose to happen?
An example when an ApplicationException occurs is when BrowseArticle.aspx is not given an ID.

The exception could be caught in the BasePage, and be redirected to Error.aspx. But I am wondering why the exception was not caught in the first place.

It absolutely should be being caught in the global default exception handler and routed to Error.aspx. If that's not happening for you, something's wrong.

Do you have <customErrors> set up correctly?

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I didn't make any changes in the web.config file for error catching.
It catches the error for other type of Exceptions, but not ApplicationException. I must have changed something.

I downloaded a new copy of the Project, and the same problem occur. It's not just ApplicationException its any Exceptions that gets thrown in the Page_Load method.

That doesn't really answer my question. Do you have customErrors set up correctly, or not?

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This is what I have in web.config for the errors. I don't know what other setup do I need?

<customErrors mode="RemoteOnly" defaultRedirect="~/Error.aspx">
<error statusCode="404" redirect="~/Error.aspx?code=404"/>
<error statusCode="408" redirect="~/Error.aspx?code=408"/>
<error statusCode="505" redirect="~/Error.aspx?code=505"/>
</customErrors>

Well, "RemoteOnly" means exceptions thrown by local requests will not be handled. Since you are probably debugging the site on your local machine, this is why the redirect to Error.aspx is not taking place.

Set mode="On" and give it another try.

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P.S. You might also consider picking up my new Blox coming out in a couple of weeks. It deals with all of this exception handling stuff in great detail.
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Thanks it works, but I should keep it on RemoteOnly for debugging purposes.
I'll check out your new blog when it comes out.

You're welcome.

P.S. (not a blog, but a Wrox Blox that you will be available from this site.)

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