public List<ItemConflict> Compare(Item item)
{
//encrypt login and password
string loginName = "";
string pass = "";
getloginAndPass(UserId, ref loginName, ref pass);
string _url = getWSUrl(this.Url);
RepositoryWebservice repo = new RepositoryWebservice(_url);
repo.Credentials = new System.Net.NetworkCredential(loginName, pass);
byte[] obj = Core.Serialization.Serializer.Serialize(item, item.GetType());
var conflicts = repo.Compare(obj, item.ItemId, loginName, pass).ToList<ItemConflict>();
repo.Dispose();
return conflicts;
}