How tcan I get Security.User.RoleNames as a string? I tried Security.User.RoleNames is IEnumerable<string> ? string.Join(", ", (IEnumerable<string>)Security.User.RoleNames).ToString() : Security.User.RoleNames.DefaultIfEmpty("None").ToString()
But I get System.ArgumentNullException: Value cannot be null. (Parameter 'source')
Indeed the RoleNames property isn't automatically populated and will be null by default. Check the SecurityService.cs file that Radzen has generated to see how RoleNames is populated:
Thanks @korchev.
In blazor how would you recommend implementing a solution that will create the user roles list as a comma seperated string available for every page to use as a datasource filter?
Thanks, I have implemented a solution to load rolenames which is executed in the main page . I use a string join in my query filters which works well.
What I was really asking is where is the best place to load rolenames, i.e. execute "await Security.GetUserById(Security.User.Id)"