You can use IsInRole() method to evaluate whether a user is a member of a group. This method accepts the role name as a string name and returns true if the user is a member of that role.You can use the next code to check if the current user is a member of the Supplier role:
If User.IsInRole(“Supplier”) ThenWhen you are using Windows authentication, you need to use the format DomainName\GroupName or ComputerName\GroupName.
‘ Do nothing, the page should be accessed as normal because the
‘ user has administrator privileges.Else
‘ Don’t allow this page. Instead, redirect to the home page.
If User.IsInRole(“THEDOMAIN\ Supplier”) Then‘ ….Else‘…End IfThis approach works for custom groups you’ve created but not for built-in groups that are defined by the operating system. If you want to check whether a user is a member of one of the built-in groups, you use this syntax:
If User.IsInRole(“BUILTIN\Administrators”) Then‘ ….Else‘…End If