`tnocolsdropdownlistcontroller`
pl	ro	options
pl	ro	dropdownrowcount
pl	ro	delay
pl	ro	width
pl	ro	datarowlinewidth
pl	ro	datarowlinecolor
pl	ro	buttonlength
pl	ro	buttonminlength
pl	ro	buttonendlength
pl	ro	ondropdown

`tcustomdropdownlistcontroller`
		cols
		valuecol
		itemindex
		delay
		dropdownrowcount
		width
		datarowlinewidth
		datarowlinecolor
		buttonlength
		buttonendlength
		buttonminlength
		imagelist
		imageframe
		imageframe_left
		imageframe_top
		imageframe_right
		imageframe_bottom
		ondropdown

`tcustomdropdowncontroller`
	ro	dropdownwidget
		options
pl		color
pl		colorclient
pl		frametemplate
pl		facetemplate

`teventpersistent`

`tlinkedpersistent`

`tnullinterfacedpersistent`

`tvirtualpersistent`