[Feature Request]: `ComboBox` with *Any* `UserControl`

[Smurf-IV]

Is your feature request related to a problem? Please describe.
Following on from #102

The ComboBox - UserControl provides the same features as the standard KryptonCcomboBox control but with a drop-down that is capable of showing any user control that you define (Preferably KryptonControls ;-) )

It would probably have a subset of Designer overrides, and wiring up the events from the UserControl may need to be done by the Developer, but at least it should be possible.

Describe the solution you'd like
It should attempt to provide the following features:

• The control supports auto-completion in all combo box styles to select matching entries as the user types text.
• The drop-down portion displays a user control that you create and derive from the supplied class (e.g. IDropControl). This allows it to at least be able to wire-up the basic events, and sizing control, and also if scrolling is required etc.
• The drop-down portion auto-sizes itself when first displayed based on the defined user control (via IDropControl). It also positions itself correctly on the screen either below or above the combo box to show as much of the user control as possible, as per normal ComboBox placement practices.
• The drop-down portion is resizable at runtime and can scroll both vertically and horizontally when necessary.

Describe alternatives you've considered
http://ewsoftware.github.io/ListControls/html/4562fbf1-0f8d-4a3d-8bd9-a5f01fa5e737.htm

[MattH-Work]

I would VERY much like to know where this is on the radar!

The only thing I lack in my current project is multi column combo boxes. I currently use 99% Krypton controls, but have had to settle* on using Eric Woodruffs multi coloum combobox ( https://github.com/EWSoftware/ListControls )

*Settle is the wrong word as the control itself is excellent, however, it does not match the look & feel (rounded corners, buttonspecs etc) of a fully-fledged Krypton control

[PWagner1]

@Smurf-IV I forgot about this, should I add the 'future' tag?

[MattH-Work]

Bumping in an attempt to get this back on the radar

[PWagner1]

Hi @Smurf-IV

Should I add the V100 tag?

[Smurf-IV]

Yes
tags etc will need to be created in the Extended area..