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Unhook the mouse down hook at the end of PropertyGridView.ProcessEnumUpAndDown #12508

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Unhook the mouse down hook at the end of PropertyGridView.ProcessEnumUpAndDown #12508

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@LeafShi1 LeafShi1 commented Nov 19, 2024 •
edited by dotnet-policy-service bot
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Fixes #12434

Root cause:

After changing the value by pressing up/down keyboard directly in EditTextbox, the EditTextBox.HookMouseDown will be set to True

The stack trace:

at System.Windows.Forms.PropertyGridInternal.PropertyGridView.GridViewTextBox.set_HookMouseDown(Boolean value)
at System.Windows.Forms.PropertyGridInternal.PropertyGridView.SetCommitError(ErrorState error, Boolean capture)
at System.Windows.Forms.PropertyGridInternal.PropertyGridView.OnEditChange(Object sender, EventArgs e)
at System.Windows.Forms.Control.OnTextChanged(EventArgs e)
at System.Windows.Forms.TextBoxBase.OnTextChanged(EventArgs e)
at System.Windows.Forms.Control.set_Text(String value)
at System.Windows.Forms.TextBoxBase.set_Text(String value)
at System.Windows.Forms.TextBox.set_Text(String value)
at System.Windows.Forms.PropertyGridInternal.PropertyGridView.GridViewTextBox.set_Text(String value)
at System.Windows.Forms.PropertyGridInternal.PropertyGridView.CommitValue(GridEntry entry, Object value, Boolean closeDropDown)
at System.Windows.Forms.PropertyGridInternal.PropertyGridView.ProcessEnumUpAndDown(GridEntry entry, Keys keyCode, Boolean closeDropDown)

then pressing Alt+Down to open the DropDown list, and select a item, the CommitValue will be invoked.
At this time, EditTextBox.HookMouseDown = true. In HookMouseDown, the Focus() was invoked, so the DropDown list was collapsed.

Proposed changes

  • Set EditTextBox.HookMouseDown = false at the end of PropertyGridView.ProcessEnumUpAndDown

Customer Impact

  • When pressing the up/down keyboard in the property drop-down list, the drop-down menu will not be collapsed directly

Regression?

  • No

Risk

  • Mininal

Screenshots

Before

Pressing Up/Down keyboard in drop-down list of property collapses dropdown directly.
Image

After

When pressing the up/down keyboard in the property drop-down list, the drop-down menu will not be collapsed directly
AfterChange

Test methodology

  • Manually

Test environment(s)

  • .net 10.0.0-beta.24562.15
Microsoft Reviewers: Open in CodeFlow

@LeafShi1 LeafShi1 requested a review from a team as a code owner November 19, 2024 10:35
@LeafShi1 LeafShi1 added the waiting-review This item is waiting on review by one or more members of team label Nov 19, 2024
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codecov bot commented Nov 19, 2024

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 75.74025%. Comparing base (af49f16) to head (c455950).
Report is 14 commits behind head on main.

Additional details and impacted files 
@@                 Coverage Diff                 @@
##                main      #12508         +/-   ##
===================================================
+ Coverage   75.73242%   75.74025%   +0.00782%     
===================================================
  Files           3153        3157          +4     
  Lines         635807      636099        +292     
  Branches       46975       47003         +28     
===================================================
+ Hits          481512      481783        +271     
+ Misses        150870      150851         -19     
- Partials        3425        3465         +40
Flag Coverage Δ
Debug 75.74025% <0.00000%> (+0.00782%) ⬆️
integration 18.17880% <0.00000%> (-0.07574%) ⬇️
production 49.30640% <0.00000%> (+0.00087%) ⬆️
test 97.04530% <ø> (-0.00464%) ⬇️
unit 46.49746% <0.00000%> (+0.23438%) ⬆️

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---- 🚨 Try these New Features:

@ricardobossan
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I proceeded to test the changes made in this PR and the problem seems to be solved:

12508

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Successfully merging this pull request may close these issues.

[Accessibility] Pressing Up/Down keyboard in drop-down list of property collapses drop-down directly
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@LeafShi1 @ricardobossan