`tdropdowncol`
pl		width
pl		options
pl		textflags
pl		passwordchar
pl		linewidth
pl		linecolor
pl		color
pl		colorselect
pl		font
pl		fontselect
pl		frametemplate
pl		facetemplate
pl		caption

`tdropdowndata`

`tmsestringdatalist`
pl		options

`tpoorstringdatalist`
		asarray
		asstringarray
		items

`tdynamicpointerdatalist`

`tdynamicdatalist`

`tdatalist`
	ro	size
	ro	state
		count
		capacity
		onchange
		onitemchange
		maxcount
		sorted
		checkeditem
		facultative

`tlinkedpersistent`

`tnullinterfacedpersistent`

`tvirtualpersistent`