When we navigate to "Auto Size" dropdown using the up/down arrow keys, it is getting auto selected without hitting ENTER key:A11y_ A11y_.NET CoreWinforms_On Focus.

[AnKushSingh05]

.NET version

dotnet-sdk-9.0.100-preview.5.24258.1

Did it work in .NET Framework?

.NET Framework and the InProc designer work the same as .NET+OOP designer

Did it work in any of the earlier releases of .NET Core or .NET 5+?

No response

Issue description

GitHub Tags:

#A11yMAS; #A11yTCS; #A11ySev2; #BM_.NET Core[Winforms]_Win32_May2024; #.NETCore; #WCAG3.2.1; #DesktopApp; #Win11;#keyboard;#On Focus;#Closed;

Environment Details:

App name: .NET Core Winforms
Window Version: Win 11
OS Build: 22621.3085
Screen readers: Narrator, NVDA 2023.3.3

Repro Steps:

1. Launch the "Accessibility core app".
2. Main Form screen would appear.
3. TAB to "Remaining_Controls_Testing the controls under Printing Tab" and hit ENTER key.
4. "Remaining_Controls" popup will appear.
5. Tab till Auto size dropdown under layout section.
6. Observe that when we navigate to "File type" dropdown using the up/down arrow keys, it is getting auto selected without hitting ENTER key

Actual Result:

When we navigate to "Auto Size" dropdown using the up/down arrow keys, it is getting auto selected without hitting ENTER key

Expected Results:

When we navigate to "Auto Size" dropdown using the up/down arrow keys it should be selected after hitting ENTER key.

User Impact:

User who relies on keyboard will face difficulty as they might select the control which they did not intent.

Attachment

Bug_12031_On.Focus.mp4

[AnKushSingh05]

Primary bug: https://devdiv.visualstudio.com/DevDiv/_workitems/edit/2164329

[Zheng-Li01]

There have the same behaviors between .NET Framework and .NET on both Designer and Run time as below screenshot.
The user can directly select the value of Auto Size by using up/down arrow keys dropdown panel, the issue cannot reproduce other properties.
.NET Framework:

.NET:

[merriemcgaw]

We will need to fix this in .NET 10 since we don't have time to make it in .NET 9. We should work with the Accessibility team to get this added to an accessibility plan allowing us to fix it in .NET 10. I don't think there's enough benefit to warrant servicing .NET 9 unless we get customer requests.

Need to ask about GitHub tags in Office Hours today.

[merriemcgaw]

@Zheng-Li01 can you confirm this is the same behavior across all of the "combo boxes" in the PropertyGrid?

I will be filing AccessibilityPlan for the .NET WinForms PropertyGrid and a second one for VS. The .NET one will need to be addressed in .NET 10 and cover at least the ComboBoxe types of TypeEditors that we own. The VS plan will be separate.

[Zheng-Li01]

@merriemcgaw, go throughed all of the "combo boxes" in the PropertyGrid for Form, Lable, Button, ToolStrip, GroupBox etc. controls. the issue only can reproduce on Auto Size property, not reproduce on other properties.

[merriemcgaw]

@Zheng-Li01 can you see if it repros on a custom PropertyGrid with a bool type of property in it?

[Zheng-Li01]

@Zheng-Li01 can you see if it repros on a custom PropertyGrid with a bool type of property in it?

Not reproduce on a custom PropertyGrid with a bool type of property in it as below screenshot.

[merriemcgaw]

@LeafShi1 can you please go ahead and fix this issue? We will create another issue to track improving the keyboard usability of the PropertyGrid as a feature for .NET 10.