public static bool CanExecute(
    this IRequestSecurityStrategy security,
    string actionId
)

<ExtensionAttribute>
Public Shared Function CanExecute(
    security As IRequestSecurityStrategy,
    actionId As String
) As Boolean

using DevExpress.ExpressApp;
using DevExpress.ExpressApp.Security;
// ...
public class CheckActionPermissionController : ViewController<ListView> {
    protected override void OnActivated() {
        base.OnActivated();
        SecurityStrategy securityStrategy = Application.GetSecurityStrategy();
        if (!securityStrategy.CanExecute("CustomAction")) {
            // ...  
        }
    }
}