Silverlight4 page and PrincipalPermission

I am using VS2010 to learn about Silverlight4 Business Application with the MVVM design pattern.

Trying to figure out how to declaratively secure a SL4 view (either a Page or UserControl or ChildWindow).

I recall in an ASP.NET 2.0 web application, I could have put the PrincipalPermission attribute on my webpage.

Example:

using System.Security.Permissions;

[PrincipalPermission(SecurityAction.Demand, Authenticated=true, Role="Manager")]
public partial class Default : System.Web.UI.Page
{//blab blab
}

Seem cannot do that in the "SL4" project as it would not even let me set a reference to the System.Security.

My google search keeps returning results about securing the WCF method calls, which is fine as another layer of securi开发者_如何转开发ty; but I would also like to do declarative security on the SL view itself too.

Anyone has any ideas? (remember I am new to SL development)

Thanks Sheir

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I think you either want [PrincipalPermission(SecurityAction.Demand, Authenticated=true] or [PrincipalPermission(SecurityAction.Demand, Role="Manager")]

the latter means you are logged in / and your IPrinciple is associated with a role of manager...

the first one means you are just logged in - ergo a valid user.