NumberBox control is not completely accessible

[alekhyareddy28]

Describe the bug

The number box control is composed on a spinner and a text box. However, the name that we set for the number box is only applied to the spinner but the editable text box has a null name property.

Steps to reproduce the bug

Steps to reproduce the behavior:

1. Run accessibility insights on a NumberBox.

Expected behavior

When the Accessible name property is set using AutomationProperties there should not be any error thrown in Accessibility insights regarding the name not being set.

Screenshots

The following screenshots are of the xaml controls gallery. This is just an example. Tried to set the AutomationProperty.Name in numerous ways. Also tried to use AutomationProperties.LabeledBy but the name does not percolate to the edit textbox.

The name that we set percolates only to the spinner and not to the edit textbox, thereby throwing an error with accessibility insights which cannot be programmatically set in any other way because it is encapsulated in the <muxc:NumberBox> control.

Version Info

NuGet package version:

Microsoft.UI.Xaml 2.5.0-prerelease.200708003

Windows app type:

UWP	Win32
Yes

Windows 10 version	Saw the problem?
Insider Build (xxxxx)
May 2020 Update (19041)
November 2019 Update (18363)
May 2019 Update (18362)	Yes
October 2018 Update (17763)
April 2018 Update (17134)
Fall Creators Update (16299)
Creators Update (15063)

Device form factor	Saw the problem?
Desktop	Yes/No
Xbox
Surface Hub
IoT

Additional context

Linked Issue in PowerToys - microsoft/PowerToys#6082

[marcelwgn]

I think, at the end of the day, this is the same issue as #2951.

[alekhyareddy28]

@chingucoding thank you. Will look at that issue.

[robloo]

@chingucoding Yes, I think it is the same issue.

[ranjeshj]

closing since this is a dup