KeePass.IO.Data.Entry.Add C# (CSharp) Method

        public void Add(Field field)
        {
            if (field == null)
                throw new ArgumentNullException("field");
            if (_fields.Values.Count(p => p.Equals(field)) > 1)
                throw new ArgumentException("Duplicate Exception", string.Format("duplicate found for {0}", field.Name));
            if (!_fields.Values.Contains(field))
                _fields.AddOrSet(field.Name, field);
        }