WindowsPrincipal.IsInRole just checks if the user is a member of the group with that name; a Windows Group is a Role. You can get a list of the groups that a user is a member of from the WindowsIdentity.Groups property. You can get WindowsIdentity from your WindowsPrincipal: WindowsIdentity identity = WindowsPrincipal.Identity as WindowsIdentity; or you … Read more
I spent several months working on trying to solve this problem and after spending a long time working with Microsoft SharePoint and WIF engineers came to the conclusion that this is not possible. It appears that the issue is basically what Kirk alludes to. When creating an impersonated session using Claims (e.g. creating an SPClaim … Read more
This is a WMI query to get the user name: ManagementObjectSearcher searcher = new ManagementObjectSearcher(“SELECT UserName FROM Win32_ComputerSystem”); ManagementObjectCollection collection = searcher.Get(); string username = (string)collection.Cast<ManagementBaseObject>().First()[“UserName”]; You will need to add System.Management under References manually.