public static void Delete(string phonenumber)
{
WhiteList wl = new WhiteList();
wl.Load();
WhiteListItem wli = wl.Find(p => p.phoneNumber == phonenumber);
wl.Remove(wli);
wl.Save();
}
public static void Add(string phonenumber)
{
if (phonenumber.Trim() == string.Empty)
{
return;
}
WhiteList wl = new WhiteList();
WhiteListItem wli = new WhiteListItem();
wli.phoneNumber = phonenumber;
wli.checkSum = CRC32.Compute(phonenumber);
wl.Load();
wl.Add(wli);
wl.Save();
}
public static bool Exists(string phonenumber)
{
WhiteList wl = new WhiteList();
wl.Load();
WhiteListItem wli = wl.Find(p => p.phoneNumber == phonenumber);
if (wli != null)
{
if (wli.checkSum == CRC32.Compute(phonenumber))
{
return(true);
}
else
{
return(false);
}
}
else
{
return(false);
}
}
