winforms Enable nullability across winforms

Enable nullability across winforms

Open hughbe opened this issue 5 years ago • 8 comments

Once CoreFx and CoreCLR fully support nullability it would be great to do this in winforms

Probably a large project...

Jun 07 '19 11:06 hughbe

Got a few things on the priority list, but we can consider adding this to the roadmap. @OliaG for Roadmap thoughts.

Jun 12 '19 23:06 merriemcgaw

Implementing NRT to the whole code base would be a massive work, but enabling it only for the API surface would be much easier and yet very helpful for customers who uses both winforms and NRT.

Jan 07 '20 12:01 Logerfo

Something we did on project system, CPS and other projects is to add <Nullable>enable</Nullable> to project files, then use a regular expression to add #nullable disable to each and every source file.

This encourages new code to be written using NRT, and provides an annotation to-do list by searching for #nullable disable.

For commonly used types where annotations would be useful, but it's too challenging to fix all generated warnings, it's possible to use #nullable annotations which allows adding ? to types without having to address any warnings.

Jan 08 '20 02:01 drewnoakes

Thank you @drewnoakes, this may be a way forward.

Jan 08 '20 04:01 RussKie

#nullable annotations

@drewnoakes where is this documented? VS syntax highlight it, but the compiler is bothered:

CS8637 Expected 'enable', 'disable', or 'restore'

Edit: Oh, nevermind, got it. It's #nullable enable annotations.

Jan 09 '20 15:01 Logerfo

I've done this for a few projects to date, and may be able to help here.

Jan 09 '20 15:01 sharwell

Now that #2702 and #2756 are merged, I encourage everyone interested to send PRs covering small parts of the API for NRT in SWF.

Jan 28 '20 12:01 Logerfo

When annotating Windows Forms types verify that the Runtime types are NRT enabled (refer to https://github.com/dotnet/runtime/issues/2339).

May 08 '20 02:05 RussKie

List of files in System.Windows.Forms which need annotation, ordered by line count ascending.

157 total files
35 files > 1000 LOC
92 files < 300 LOC
50 files < 100 LOC

\src\System\Windows\Forms\IDataGridColumnStyleEditingNotificationService.cs	11
\src\System\Windows\Forms\IFileReaderService.cs	11
\src\System\Drawing\Design\PropertyValueUIHandler.cs	14
\src\System\Drawing\Design\PropertyValueUIItemInvokeHandler.cs	15
\src\System\Windows\Forms\RichTextBoxConstants.cs	15
\src\System\Windows\Forms\ISupportToolStripPanel.cs	16
\src\System\Windows\Forms\DataGridViewRowCollection.RowComparer.ComparedObjectMax.cs	17
\src\System\Windows\Forms\MergeHistory.cs	18
\src\System\Windows\Forms\AxHost.ClsidAttribute.cs	19
\src\System\Windows\Forms\DataGridViewIntLinkedListElement.cs	19
\src\System\Windows\Forms\ICurrencyManagerProvider.cs	21
\src\System\Windows\Forms\DataGridViewEditingCell.cs	22
\src\System\Windows\Forms\ToolStripDropDownMenu.ToolStripDropDownLayoutEngine.cs	25
\src\System\Windows\Forms\WindowsFormsSectionHandler.cs	26
\src\System\Windows\Forms\TableLayoutColumnStyleCollection.cs	28
\src\System\Windows\Forms\TableLayoutRowStyleCollection.cs	28
\src\System\Drawing\Design\PropertyValueUIItem.cs	32
\src\System\Windows\Forms\DataGridViewColumnDesignTimeVisibleAttribute.cs	32
\src\System\Windows\Forms\DataGridViewSortCompareEventArgs.cs	32
\src\System\Windows\Forms\TableLayoutControlCollection.cs	32
\src\System\Windows\Forms\ToolStripPanel.ToolStripPanelControlCollection.XYComparer.cs	33
\src\System\Windows\Forms\ToolStripPanel.ToolStripPanelControlCollection.YXComparer.cs	33
\src\System\Windows\Forms\BaseCollection.cs	36
\src\System\Windows\Forms\PropertyGridInternal\ArrayElementGridEntry.cs	38
\src\System\Windows\Forms\DataGridViewComboBoxCell.ItemComparer.cs	38
\src\System\Drawing\Design\IPropertyValueUIService.cs	39
\src\System\Windows\Forms\DataGridViewCellLinkedListElement.cs	39
\src\System\Windows\Forms\TypeValidationEventArgs.cs	41
\src\System\Windows\Forms\TypedControlCollection.cs	42
\src\System\Windows\Forms\ReadOnlyControlCollection.cs	47
\src\System\Windows\Forms\PropertyGridInternal\PropertyGridView.GridPositionData.cs	50
\src\System\Windows\Forms\DataGridView.ControlCollection.cs	53
\src\System\Windows\Forms\DataGridView.ToolTip.cs	58
\src\System\Windows\Forms\ListManagerBindingsCollection.cs	59
\src\System\Windows\Forms\ToolStripPanel.FeedbackRectangle.cs	64
\src\System\Windows\Forms\MDIClient.ControlCollection.cs	65
\src\System\Windows\Forms\Design\IUIService.cs	70
\src\System\Windows\Forms\HtmlWindow.HTMLWindowEvents2.cs	74
\src\System\Windows\Forms\Layout\TableLayout.LayoutInfo.cs	75
\src\System\Windows\Forms\AxHost.PropertyBagStream.cs	75
\src\System\Windows\Forms\DataGridViewSelectedRowCollection.cs	76
\src\System\Windows\Forms\Layout\FlowLayout.ElementProxy.cs	77
\src\System\Windows\Forms\DataGridViewSelectedColumnCollection.cs	78
\src\System\Windows\Forms\TabControl.ControlCollection.cs	79
\src\System\Windows\Forms\PropertyGridInternal\MergePropertyDescriptor.MultiMergeCollection.cs	80
\src\System\Windows\Forms\DataGridViewTextBoxColumn.cs	91
\src\System\Windows\Forms\PropertyGridInternal\ImmutablePropertyDescriptorGridEntry.cs	93
\src\System\Windows\Forms\RelatedPropertyManager.cs	93
\src\System\Windows\Forms\HtmlWindowCollection.cs	97
\src\System\Windows\Forms\HtmlHistory.cs	98
\src\System\Windows\Forms\BindingsCollection.cs	102
\src\System\Windows\Forms\DataGridViewSelectedCellCollection.cs	105
\src\System\Windows\Forms\HtmlWindow.HtmlWindowShim.cs	105
\src\System\Windows\Forms\HtmlElementEventArgs.cs	106
\src\System\Windows\Forms\DataGridView.HitTestInfo.cs	112
\src\System\Windows\Forms\DataGridViewRowCollection.RowArrayList.cs	116
\src\System\Windows\Forms\PropertyGrid.PropertyTabCollection.cs	116
\src\System\Windows\Forms\HtmlDocument.HtmlDocumentShim.cs	118
\src\System\Windows\Forms\TableLayoutStyleCollection.cs	121
\src\System\Windows\Forms\HtmlToClrEventProxy.cs	131
\src\System\Windows\Forms\DataGridViewRowCollection.RowComparer.cs	133
\src\System\Windows\Forms\HtmlElement.HtmlElementShim.cs	138
\src\System\Windows\Forms\TableLayoutPanelCellPosition.cs	139
\src\System\Windows\Forms\AutoCompleteStringCollection.cs	144
\src\System\Windows\Forms\HtmlShim.cs	145
\src\System\Windows\Forms\TableLayoutSettings.TableLayoutSettingsStub.cs	146
\src\System\Windows\Forms\ControlBindingsCollection.cs	156
\src\System\Windows\Forms\DataGridViewComboBoxEditingControl.cs	158
\src\System\Windows\Forms\HtmlDocument.HTMLDocumentEvents2.cs	158
\src\System\Windows\Forms\DataGridViewCellPaintingEventArgs.cs	162
\src\System\Windows\Forms\WindowsFormsSynchronizationContext.cs	164
\src\System\Windows\Forms\MDIControlStrip.cs	168
\src\System\Windows\Forms\ToolStripPanel.ToolStripPanelRowCollection.cs	168
\src\System\Windows\Forms\HtmlElementCollection.cs	169
\src\System\Windows\Forms\WebBrowser.WebBrowserSite.cs	174
\src\System\Windows\Forms\DataGridViewCellLinkedList.cs	175
\src\System\Windows\Forms\RelatedCurrencyManager.cs	180
\src\System\Windows\Forms\DataGridViewIntLinkedList.cs	183
\src\System\Windows\Forms\PropertyManager.cs	189
\src\System\Windows\Forms\WebBrowser.WebBrowserEvent.cs	191
\src\System\Windows\Forms\DataGridViewButtonColumn.cs	209
\src\System\Windows\Forms\HtmlShimManager.cs	229
\src\System\Windows\Forms\HelpProvider.cs	235
\src\System\Windows\Forms\PropertyGridInternal\SingleSelectRootGridEntry.cs	237
\src\System\Windows\Forms\PropertyGridInternal\MultiSelectRootGridEntry.PropertyMerger.cs	254
\src\System\Windows\Forms\DataGridViewComboBoxCell.ObjectCollection.cs	259
\src\System\Windows\Forms\ImageListStreamer.cs	261
\src\System\Windows\Forms\ToolStripPanelRow.ToolStripPanelRowControlCollection.cs	261
\src\System\Windows\Forms\DataGridViewImageColumn.cs	287
\src\System\Windows\Forms\PropertyGridInternal\MergePropertyDescriptor.cs	297
\src\System\Windows\Forms\HtmlElement.HTMLElementEvents2.cs	299
\src\System\Windows\Forms\DataGridViewCheckBoxColumn.cs	300
\src\System\Windows\Forms\DataGridViewCellCollection.cs	310
\src\System\Windows\Forms\ErrorProvider.ControlItem.cs	312
\src\System\Windows\Forms\Layout\FlowLayout.cs	330
\src\System\Windows\Forms\DataGridViewLinkColumn.cs	336
\src\System\Windows\Forms\AxHost.AxPropertyDescriptor.cs	341
\src\System\Windows\Forms\DataGridViewTopLeftHeaderCell.cs	350
\src\System\Windows\Forms\MessageBox.cs	359
\src\System\Windows\Forms\HtmlWindow.cs	367
\src\System\Windows\Forms\WebBrowserSiteBase.cs	373
\src\System\Windows\Forms\ListView.ListViewNativeItemCollection.cs	392
\src\System\Windows\Forms\ComboBox.ObjectCollection.cs	421
\src\System\Windows\Forms\ListView.ListViewItemCollection.cs	436
\src\System\Windows\Forms\ToolStripItemCollection.cs	446
\src\System\Windows\Forms\Formatter.cs	469
\src\System\Windows\Forms\DataGridViewComboBoxColumn.cs	478
\src\System\Windows\Forms\DataGridViewHeaderCell.cs	574
\src\System\Windows\Forms\HtmlDocument.cs	580
\src\System\Windows\Forms\TreeNodeCollection.cs	616
\src\System\Windows\Forms\ListBindingHelper.cs	618
\src\System\Windows\Forms\HtmlElement.cs	624
\src\System\Windows\Forms\ToolStripSplitStackLayout.cs	635
\src\System\Windows\Forms\ToolStripPanelRow.cs	655
\src\System\Windows\Forms\DataGridViewTextBoxCell.cs	703
\src\System\Windows\Forms\PropertyGridInternal\PropertyDescriptorGridEntry.cs	762
\src\System\Windows\Forms\DataGridViewCellStyle.cs	775
\src\System\Windows\Forms\ToolStripControlHost.cs	799
\src\System\Windows\Forms\BindingNavigator.cs	819
\src\System\Windows\Forms\DataGridViewImageCell.cs	834
\src\System\Windows\Forms\DataGridViewButtonCell.cs	940
\src\System\Windows\Forms\CurrencyManager.cs	998
\src\System\Windows\Forms\DataGridViewRowHeaderCell.cs	1002
\src\System\Windows\Forms\DataGridViewColumn.cs	1011
\src\System\Windows\Forms\DataGridViewLinkCell.cs	1021
\src\System\Windows\Forms\DataGridViewColumnCollection.cs	1053
\src\System\Windows\Forms\Layout\DefaultLayout.cs	1063
\src\System\Windows\Forms\PictureBox.cs	1079
\src\System\Windows\Forms\DataGridViewColumnHeaderCell.cs	1105
\src\System\Windows\Forms\AxHost.AxContainer.cs	1137
\src\System\Windows\Forms\Binding.cs	1151
\src\System\Windows\Forms\ListViewItem.cs	1163
\src\System\Windows\Forms\WebBrowser.cs	1307
\src\System\Windows\Forms\ToolStripManager.cs	1317
\src\System\Windows\Forms\Layout\TableLayout.cs	1330
\src\System\Windows\Forms\DataGridView.DataConnection.cs	1475
\src\System\Windows\Forms\WebBrowserBase.cs	1588
\src\System\Windows\Forms\DataGridViewCheckBoxCell.cs	1591
\src\System\Windows\Forms\BindingSource.cs	1597
\src\System\Windows\Forms\DataGridViewRow.cs	1602
\src\System\Windows\Forms\PropertyGridInternal\GridEntry.cs	1894
\src\System\Windows\Forms\TabControl.cs	1949
\src\System\Windows\Forms\TreeNode.cs	2010
\src\System\Windows\Forms\ToolTip.cs	2069
\src\System\Windows\Forms\DataGridViewRowCollection.cs	2206
\src\System\Windows\Forms\DataGridViewComboBoxCell.cs	2326
\src\System\Windows\Forms\TreeView.cs	3158
\src\System\Windows\Forms\RichTextBox.cs	3220
\src\System\Windows\Forms\ComboBox.cs	3530
\src\System\Windows\Forms\DataGridViewCell.cs	3671
\src\System\Windows\Forms\AxHost.cs	3698
\src\System\Windows\Forms\PropertyGrid.cs	3764
\src\System\Windows\Forms\ToolStrip.cs	4373
\src\System\Windows\Forms\PropertyGridInternal\PropertyGridView.cs	4650
\src\System\Windows\Forms\DataGridView.cs	4658
\src\System\Windows\Forms\Control.cs	12737
\src\System\Windows\Forms\DataGridView.Methods.cs	27098

Powershell code used:

Get-ChildItem -re -in "*.cs" |
Foreach-Object { 
    $fileStats = Get-Content $_.FullName | Measure-Object -line
	$word='#nullable disable'
	$found = Select-String -Path $_ -Pattern $word -SimpleMatch -Quiet
    $linesInFile = $fileStats.Lines
    Write-Host "$_,$linesInFile,$found" 
}

Dec 22 '22 01:12 elachlan

List of files in System.Windows.Forms which need annotation, ordered by line count ascending.

112 total files
34 files > 1000 LOC
51 files < 300 LOC
16 files < 100 LOC

\src\System\Drawing\Design\IPropertyValueUIService.cs	39
\src\System\Windows\Forms\DataGridViewCellLinkedListElement.cs	39
\src\System\Windows\Forms\ListManagerBindingsCollection.cs	59
\src\System\Windows\Forms\MDIClient.ControlCollection.cs	65
\src\System\Windows\Forms\Design\IUIService.cs	70
\src\System\Windows\Forms\HtmlWindow.HTMLWindowEvents2.cs	74
\src\System\Windows\Forms\Layout\TableLayout.LayoutInfo.cs	75
\src\System\Windows\Forms\DataGridViewSelectedRowCollection.cs	76
\src\System\Windows\Forms\Layout\FlowLayout.ElementProxy.cs	77
\src\System\Windows\Forms\DataGridViewSelectedColumnCollection.cs	78
\src\System\Windows\Forms\TabControl.ControlCollection.cs	79
\src\System\Windows\Forms\PropertyGridInternal\MergePropertyDescriptor.MultiMergeCollection.cs	80
\src\System\Windows\Forms\DataGridViewTextBoxColumn.cs	91
\src\System\Windows\Forms\PropertyGridInternal\ImmutablePropertyDescriptorGridEntry.cs	93
\src\System\Windows\Forms\RelatedPropertyManager.cs	93
\src\System\Windows\Forms\HtmlWindowCollection.cs	97
\src\System\Windows\Forms\BindingsCollection.cs	102
\src\System\Windows\Forms\DataGridViewSelectedCellCollection.cs	105
\src\System\Windows\Forms\HtmlWindow.HtmlWindowShim.cs	105
\src\System\Windows\Forms\HtmlElementEventArgs.cs	106
\src\System\Windows\Forms\DataGridView.HitTestInfo.cs	112
\src\System\Windows\Forms\DataGridViewRowCollection.RowArrayList.cs	116
\src\System\Windows\Forms\HtmlDocument.HtmlDocumentShim.cs	119
\src\System\Windows\Forms\HtmlToClrEventProxy.cs	131
\src\System\Windows\Forms\DataGridViewRowCollection.RowComparer.cs	133
\src\System\Windows\Forms\HtmlElement.HtmlElementShim.cs	138
\src\System\Windows\Forms\AutoCompleteStringCollection.cs	144
\src\System\Windows\Forms\HtmlShim.cs	145
\src\System\Windows\Forms\TableLayoutSettings.TableLayoutSettingsStub.cs	146
\src\System\Windows\Forms\ControlBindingsCollection.cs	156
\src\System\Windows\Forms\DataGridViewComboBoxEditingControl.cs	158
\src\System\Windows\Forms\HtmlDocument.HTMLDocumentEvents2.cs	158
\src\System\Windows\Forms\DataGridViewCellPaintingEventArgs.cs	162
\src\System\Windows\Forms\MDIControlStrip.cs	168
\src\System\Windows\Forms\ToolStripPanel.ToolStripPanelRowCollection.cs	168
\src\System\Windows\Forms\HtmlElementCollection.cs	169
\src\System\Windows\Forms\WebBrowser.WebBrowserSite.cs	171
\src\System\Windows\Forms\DataGridViewCellLinkedList.cs	175
\src\System\Windows\Forms\RelatedCurrencyManager.cs	180
\src\System\Windows\Forms\DataGridViewIntLinkedList.cs	183
\src\System\Windows\Forms\WebBrowser.WebBrowserEvent.cs	188
\src\System\Windows\Forms\PropertyManager.cs	189
\src\System\Windows\Forms\DataGridViewButtonColumn.cs	209
\src\System\Windows\Forms\HtmlShimManager.cs	228
\src\System\Windows\Forms\PropertyGridInternal\MultiSelectRootGridEntry.PropertyMerger.cs	254
\src\System\Windows\Forms\DataGridViewComboBoxCell.ObjectCollection.cs	259
\src\System\Windows\Forms\ImageListStreamer.cs	261
\src\System\Windows\Forms\ToolStripPanelRow.ToolStripPanelRowControlCollection.cs	261
\src\System\Windows\Forms\DataGridViewImageColumn.cs	287
\src\System\Windows\Forms\PropertyGridInternal\MergePropertyDescriptor.cs	297
\src\System\Windows\Forms\HtmlElement.HTMLElementEvents2.cs	299
\src\System\Windows\Forms\DataGridViewCheckBoxColumn.cs	300
\src\System\Windows\Forms\DataGridViewCellCollection.cs	310
\src\System\Windows\Forms\Layout\FlowLayout.cs	330
\src\System\Windows\Forms\DataGridViewLinkColumn.cs	336
\src\System\Windows\Forms\AxHost.AxPropertyDescriptor.cs	338
\src\System\Windows\Forms\HtmlWindow.cs	343
\src\System\Windows\Forms\DataGridViewTopLeftHeaderCell.cs	350
\src\System\Windows\Forms\WebBrowserSiteBase.cs	370
\src\System\Windows\Forms\ListView.ListViewNativeItemCollection.cs	392
\src\System\Windows\Forms\ComboBox.ObjectCollection.cs	421
\src\System\Windows\Forms\ListView.ListViewItemCollection.cs	436
\src\System\Windows\Forms\ToolStripItemCollection.cs	448
\src\System\Windows\Forms\DataGridViewComboBoxColumn.cs	478
\src\System\Windows\Forms\HtmlDocument.cs	557
\src\System\Windows\Forms\DataGridViewHeaderCell.cs	574
\src\System\Windows\Forms\HtmlElement.cs	600
\src\System\Windows\Forms\TreeNodeCollection.cs	616
\src\System\Windows\Forms\ListBindingHelper.cs	618
\src\System\Windows\Forms\ToolStripSplitStackLayout.cs	635
\src\System\Windows\Forms\ToolStripPanelRow.cs	655
\src\System\Windows\Forms\DataGridViewTextBoxCell.cs	703
\src\System\Windows\Forms\PropertyGridInternal\PropertyDescriptorGridEntry.cs	762
\src\System\Windows\Forms\ToolStripControlHost.cs	763
\src\System\Windows\Forms\DataGridViewCellStyle.cs	764
\src\System\Windows\Forms\DataGridViewImageCell.cs	834
\src\System\Windows\Forms\DataGridViewButtonCell.cs	940
\src\System\Windows\Forms\CurrencyManager.cs	998
\src\System\Windows\Forms\DataGridViewColumn.cs	1011
\src\System\Windows\Forms\DataGridViewRowHeaderCell.cs	1014
\src\System\Windows\Forms\DataGridViewLinkCell.cs	1021
\src\System\Windows\Forms\DataGridViewColumnCollection.cs	1053
\src\System\Windows\Forms\Layout\DefaultLayout.cs	1063
\src\System\Windows\Forms\PictureBox.cs	1083
\src\System\Windows\Forms\DataGridViewColumnHeaderCell.cs	1105
\src\System\Windows\Forms\Binding.cs	1151
\src\System\Windows\Forms\ListViewItem.cs	1163
\src\System\Windows\Forms\WebBrowser.cs	1307
\src\System\Windows\Forms\ToolStripManager.cs	1317
\src\System\Windows\Forms\Layout\TableLayout.cs	1330
\src\System\Windows\Forms\DataGridView.DataConnection.cs	1475
\src\System\Windows\Forms\WebBrowserBase.cs	1584
\src\System\Windows\Forms\DataGridViewCheckBoxCell.cs	1591
\src\System\Windows\Forms\BindingSource.cs	1597
\src\System\Windows\Forms\DataGridViewRow.cs	1602
\src\System\Windows\Forms\PropertyGridInternal\GridEntry.cs	1909
\src\System\Windows\Forms\TabControl.cs	1949
\src\System\Windows\Forms\TreeNode.cs	2010
\src\System\Windows\Forms\ToolTip.cs	2075
\src\System\Windows\Forms\DataGridViewRowCollection.cs	2206
\src\System\Windows\Forms\DataGridViewComboBoxCell.cs	2320
\src\System\Windows\Forms\TreeView.cs	3158
\src\System\Windows\Forms\RichTextBox.cs	3201
\src\System\Windows\Forms\ComboBox.cs	3541
\src\System\Windows\Forms\AxHost.cs	3615
\src\System\Windows\Forms\DataGridViewCell.cs	3653
\src\System\Windows\Forms\PropertyGrid.cs	3780
\src\System\Windows\Forms\ToolStrip.cs	4362
\src\System\Windows\Forms\DataGridView.cs	4654
\src\System\Windows\Forms\PropertyGridInternal\PropertyGridView.cs	4669
\src\System\Windows\Forms\Control.cs	11967
\src\System\Windows\Forms\DataGridView.Methods.cs	27098

Feb 16 '23 00:02 elachlan

@gpetrou I am maintaining a list of files that need annotating here. I have been working down the list.

Feb 16 '23 01:02 elachlan

@elachlan please note that I have pending PRs for some of these files and that some of the rest are partially annotated. Also, as I have mentioned before, I am not planning to do any work on DataGridView-related files.

Feb 16 '23 05:02 gpetrou

We've made great progress in .NET 8 all, thank you so much!! I'm moving this issue to .NET 9 and we'll keep going with more next release.

Jul 27 '23 01:07 merriemcgaw

Remaining files that need annotation

File	Lines Of Code
src\System\Windows\Forms\Binding.cs	1031
src\System\Windows\Forms\BindingSource.cs	1592
src\System\Windows\Forms\CurrencyManager.cs	954
src\System\Windows\Forms\DataGridView.DataConnection.cs	1440
src\System\Windows\Forms\DataGridView.Methods.cs	27195
src\System\Windows\Forms\DataGridViewCell.cs	3633
src\System\Windows\Forms\DataGridViewCheckBoxCell.cs	1602
src\System\Windows\Forms\DataGridViewCheckBoxColumn.cs	288
src\System\Windows\Forms\DataGridViewColumnCollection.cs	1049
src\System\Windows\Forms\DataGridViewColumnHeaderCell.cs	1080
src\System\Windows\Forms\DataGridViewComboBoxCell.cs	2292
src\System\Windows\Forms\DataGridViewComboBoxColumn.cs	466
src\System\Windows\Forms\DataGridViewHeaderCell.cs	545
src\System\Windows\Forms\DataGridViewImageCell.cs	829
src\System\Windows\Forms\DataGridViewIntLinkedList.cs	179
src\System\Windows\Forms\DataGridViewLinkColumn.cs	324
src\System\Windows\Forms\DataGridViewRowHeaderCell.cs	1010
src\System\Windows\Forms\PropertyGrid.cs	3776
src\System\Windows\Forms\PropertyGridInternal\GridEntry.cs	1902
src\System\Windows\Forms\PropertyGridInternal\MultiSelectRootGridEntry.PropertyMerger.cs	251
src\System\Windows\Forms\PropertyGridInternal\PropertyDescriptorGridEntry.cs	759
src\System\Windows\Forms\PropertyGridInternal\PropertyGridView.cs	4667
src\System\Windows\Forms\TreeNode.cs	1869

Oct 18 '23 23:10 elachlan

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Enable nullability across winforms

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