`TSDODoubleField`
pt		getVariant
pt		setVariant
pt		getString
pt		setString
pt		getCurrency
pt		setCurrency
pt		getDouble
pt		setDouble
pt		getFloat
pt		setFloat

`TSDOBaseField`
pt		getVariant
pt		setVariant
pt		getBoolean
pt		setBoolean
pt		getByte
pt		setByte
pt		getBytes
pt		setBytes
pt		getCharacter
pt		setCharacter
pt		getCurrency
pt		setCurrency
pt		getDate
pt		setDate
pt		getDouble
pt		setDouble
pt		getFloat
pt		setFloat
pt		getInteger
pt		setInteger
pt		getLong
pt		setLong
pt		getShort
pt		setShort
pt		getString
pt		setString
pt		getDataObject
pt		setDataObject
pt		getChangeSummary
pt		setChangeSummary
pt		isSet
pt		unset
pt		isNull
pt		setNull