Hi, I was looking at the "Attribute Based Validation" examples on the newtelligence website (http://www.newtelligence.com/news/AttributeBasedValidation.aspx), which made me wonder about how attributes work...
I know that you can declare attributes on a class/member etc, and query the attributes in your code using reflection (which is what the above sample does), but how do you get the attribute to _automatically_ cause code to be run on a field / method / class access? The PrincipalPermission attribute is an example of the behaviour I am thinking of - when there is a PrincipalPermission attribute on a method, the framework(?) automatically calls Demand() to check the users authentication. Is it possible to have other attributes automatically called? Thanks, Kirk You can read messages from the DOTNET archive, unsubscribe from DOTNET, or subscribe to other DevelopMentor lists at http://discuss.develop.com.
