C# (CSharp) CardDAVServer.FileSystemStorage.AspNet.Acl PrincipalBase.IsValidUserName - 3 examples found. These are the top rated real world C# (CSharp) examples of CardDAVServer.FileSystemStorage.AspNet.Acl.PrincipalBase.IsValidUserName extracted from open source projects. You can rate examples to help us improve the quality of examples.