System.Data.Common.CharStorage.Set C# (CSharp) Метод

        public override void Set(int record, object value)
        {
            System.Diagnostics.Debug.Assert(null != value, "null value");
            if (_nullValue == value)
            {
                _values[record] = defaultValue;
                SetNullBit(record, true);
            }
            else
            {
                char ch = ((IConvertible)value).ToChar(FormatProvider);
                if ((ch >= (char)0xd800 && ch <= (char)0xdfff) || (ch < (char)0x21 && (ch == (char)0x9 || ch == (char)0xa || ch == (char)0xd)))
                {
                    throw ExceptionBuilder.ProblematicChars(ch);
                }
                _values[record] = ch;
                SetNullBit(record, false);
            }
        }