/// <summary>
/// Verifica dell'esistenza del gruppo in DCTM
/// </summary>
/// <param name="groupName"></param>
/// <returns></returns>
public bool ContainsGroup(string groupName)
{
IQueryService queryServices = DctmServiceFactory.GetServiceInstance <IQueryService>(UserManager.ImpersonateSuperUser());
return(Dfs4DocsPa.containsGroup(groupName, queryServices));
}