Build Menu Based on Authorized Roles

Create an interface ‘INavData’ which holds values for the menu and Create a class ‘NavData’ from the interface with all those properties.

Create a class ‘MenuBuild’ and a method ‘RenderMenu’ to hold the role based menu generation algorithm.

public static class MenuBuild
{
public static IEnumerable < INavData > RenderMenu(IPrinciple User, Func < ActionResult, string > urlAction)
{
List < INavData > ComponentMenuList = new List < INavData > ();
if (User.IsInRole("Authenticated_User"))
{
NavData Home = new NavData
{
IsActive = true,
AlternateUrl = urlAction(MVC.Home.Actions.Index()),
ActionName = MVC.Home.ActionNames.Index,
ControllerName = MVC.Home.Name,
Text = "Home"
}
ComponentMenuList.Add(Home);
}
List < INavData > subMenu1 = new List < INavData > ();
if (IPrincipleExtensions.IsInAnyRole(User.IsInRole, ComponentViewer.ComponentViewerRoles))
{
NavData newCompMenu1 = new NavData
{
IsActive = true,
AlternateUrl = urlAction(MVC.Comp.Actions.Index()),
ActionName = MVC.Comp.ActionNames.Index,
ControllerName = MVC.Comp.Name,
Text = "Comp"
}
subMenu1.Add(newCompMenu1);
}
if (IPrincipalExtensions.IsInAnyRole(User.IsInRole, ComponentViewer.ComponentViewerRoles))
{
NavData newCompMenu2 = new NavData
{
IsActive = true,
AlternateUrl = urlAction(MVC.Comp.Actions.Edit()),
ActionName = MVC.Comp.ActionNames.Edit,
ControllerName = MVC.Comp.Name,
Text = "Comp Edit"
}
subMenu1.Add(newCompMenu2);
}
if (subMenu.Count > 0)
{
List < INavData > subMenu1Child = new List < INavData > ();
NavData subMenu1Header = new NavData
{
Text = "New",
Children = subMenu1Child
}
ComponentMenuList.Add(subMenu1Child);
}
}
}

Write an extension class to the ‘IPrincipal’ with ‘IsInAnyRole’ method to loop the roles.

public static class IPrincipalExtensions
{
public static bool IsInAnyRole(Func<string,bool> IsInRole, IEnumerable<string> roles)
{
foreach(string role in roles)
if(IsInRole(role)) return true;
return false;
}
}