Problem with IsInRole()

Question

I seem to be having a problem with using IsInRole. if (Page.User.IsInRole("User")) { Response.Write("In group"); } else { Response.Write("Not in group"); } It does not seem to matter what string that I place in the function it always comes as false. I tried this piece of code: AppDomain myDomain = Thread.GetDomain(); myDomain.SetPrincipalPolicy(PrincipalPolicy.WindowsPrincipal); WindowsPrincipal myPrincipal = (WindowsPrincipal)Thread.CurrentPrincipal; Response.Write("Thread User is: " + myPrincipal.Identity.Name.ToString()); Array wbirFields = Enum.GetValues(typeof(WindowsBuiltInRole)); foreach (object roleName in wbirFields) { try { Response.Write(roleName + " : " + myPrincipal.IsInRole((WindowsBuiltInRole)roleName)); } catch (Exception) { Response.Write("Could not obtain role for this " + roleName); } } if (myPrincipal.IsInRole("User")) { Response.Write("In group"); } else { Response.Write("Not in group"); } Administrator : True User : True Guest : False PowerUser : False Could not obtain role for AccountOperator Could not obtain role for this SystemOperator Could not obtain role for this PrintOperator BackupOperator : False Could not obtain role for this Replicator Not in group Although the first bit of code said that true for 'User' the second reported false. The problem is that I do not want to check against a Windows built in role for groups that has design for my pupose. Each role will depend if some controls are read only or not. Cheers Robert T Turner