Enum: FieldType

#	Name
0	None
1	String
2	Text1
3	Text2
4	Byte
5	Short
6	UShort
7	Int
8	UInt
9	Long
10	ULong
11	Float
12	Double
13	Enum
14	Flag
15	DateTime
16	TimeSpan
17	DateKey
18	TickerKey
19	ExpiryKey
20	OptionKey
21	Repeater