ASP.NET MVC HandleError

by 
[HandleError]

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.

For more information, take a look at Scott Guthrie’s blog post about it.

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