feat(controls): Add NumericUpDown control

[koal44]

Pull request type

• Feature

What is the new behavior?

Added new control NumericUpDown. The library already has a NumberBox control, but this is my version.

• Implemented new control NumericUpDown
• Showcased it in the Gallery App

Other information

[pomianowski]

Hey @koal44, thanks for putting the work into the control, but we should avoid creating two controls to do the same thing. If you have any ideas on how to improve NumberBox, I think this would be a better approach.

[LucaSamarCMA]

it would be great to have this control

[chucker]

I don't see why we need two controls that do the same thing.

But I can see simplifying this PR to introduce a new NumberBoxSpinButtonPlacementMode.Classic, which looks like the screenshot above: the up/down buttons are vertically arranged.

[stanlrt]

Shouldnt that PR be transformed into a fix for #1673 ? NumberBox is already supposed to support what you implemented, but it's broken

[stanlrt]

I don't see why we need two controls that do the same thing.

But I can see simplifying this PR to introduce a new NumberBoxSpinButtonPlacementMode.Classic, which looks like the screenshot above: the up/down buttons are vertically arranged.

It was my understanding this is precisely what NumberBoxSpinButtonPlacementMode.Compact is already supposed to do, but maybe I read docs wrong? In WinUI that is for sure what it does though.

[chucker]

I don't see why we need two controls that do the same thing.
But I can see simplifying this PR to introduce a new NumberBoxSpinButtonPlacementMode.Classic, which looks like the screenshot above: the up/down buttons are vertically arranged.

It was my understanding this is precisely what NumberBoxSpinButtonPlacementMode.Compact is already supposed to do, but maybe I read docs wrong? In WinUI that is for sure what it does though.

I think that's correct.