320Properties = new PropertyStore();

83if (!Properties.TryGetValue(s_activeXImplProperty, out ActiveXImpl? activeXImpl)) 94activeXImpl = Properties.AddValue(s_activeXImplProperty, new ActiveXImpl(this));

326Properties.AddValue( 461return Properties.GetValueOrDefault( 470Properties.AddOrRemoveValue( 482return Properties.GetValueOrDefault( 491Properties.AddOrRemoveValue( 536if (!Properties.TryGetValue(s_accessibilityProperty, out AccessibleObject? accessibleObject)) 539Properties.AddValue(s_accessibilityProperty, accessibleObject); 555if (!Properties.TryGetValue(s_ncAccessibilityProperty, out AccessibleObject? ncAccessibleObject)) 558Properties.AddValue(s_ncAccessibilityProperty, ncAccessibleObject); 582get => Properties.GetValueOrDefault<string>(s_accessibleDefaultActionProperty); 583set => Properties.AddOrRemoveValue(s_accessibleDefaultActionProperty, value); 595get => Properties.GetValueOrDefault<string>(s_accessibleDescriptionProperty); 596set => Properties.AddOrRemoveValue(s_accessibleDescriptionProperty, value); 608get => Properties.GetValueOrDefault<string>(s_accessibleNameProperty); 609set => Properties.AddOrRemoveValue(s_accessibleNameProperty, value); 620get => Properties.GetValueOrDefault(s_accessibleRoleProperty, AccessibleRole.Default); 624Properties.AddOrRemoveValue(s_accessibleRoleProperty, value, defaultValue: AccessibleRole.Default); 672if (Properties.TryGetValueOrNull(s_ambientPropertiesServiceProperty, out AmbientProperties? ambientProperties)) 681Properties.AddValue(s_ambientPropertiesServiceProperty, ambientProperties); 758get => Properties.GetValueOrDefault(s_autoScrollOffsetProperty, Point.Empty); 759set => Properties.AddOrRemoveValue(s_autoScrollOffsetProperty, value, defaultValue: Point.Empty); 780if (Properties.TryGetValue(s_backBrushProperty, out HBRUSH customBackBrush)) 786if (!Properties.ContainsKey(s_backColorProperty)) 814Properties.AddValue(s_backBrushProperty, backBrush); 851get => Properties.TryGetValue(s_dataContextProperty, out object? value) 863if (Properties.ContainsKey(s_dataContextProperty) && Equals(ParentInternal?.DataContext, value)) 865Properties.RemoveValue(s_dataContextProperty); 870Properties.AddValue(s_dataContextProperty, value); 876=> Properties.ContainsKey(s_dataContextProperty); 879=> Properties.RemoveValue(s_dataContextProperty); 883get => Properties.GetValueOrDefault( 904Properties.RemoveValue(s_visualStylesModeProperty); 908Properties.AddValue(s_visualStylesModeProperty, value); 919=> Properties.TryGetValue( 1098Properties.AddOrRemoveValue(s_backColorProperty, value); 1123get => Properties.GetValueOrDefault<Image>(s_backgroundImageProperty); 1131Properties.AddOrRemoveValue(s_backgroundImageProperty, value); 1153get => Properties.GetValueOrDefault(s_backgroundImageLayoutProperty, ImageLayout.Tile); 1175Properties.AddOrRemoveValue(s_backgroundImageLayoutProperty, value, defaultValue: ImageLayout.Tile); 1213Properties.GetValueOrDefault<ControlBindingsCollection>(s_bindingsProperty)?.Clear(); 1226if (Properties.TryGetValue(s_bindingManagerProperty, out BindingContext? context)) 1243BindingContext? oldContext = Properties.AddOrRemoveValue(s_bindingManagerProperty, value); 1394int cacheTextCounter = Properties.GetValueOrDefault<int>(s_cacheTextCountProperty); 1407int cacheTextCounter = Properties.GetValueOrDefault<int>(s_cacheTextCountProperty); 1413Properties.AddOrRemoveValue(s_cacheTextFieldProperty, _text); 1424_text = Properties.GetValueOrDefault<string?>(s_cacheTextFieldProperty); 1428Properties.AddOrRemoveValue(s_cacheTextCountProperty, cacheTextCounter); 1514get => Properties.GetValueOrDefault<ContextMenuStrip>(s_contextMenuStripProperty); 1517ContextMenuStrip? oldValue = Properties.AddOrRemoveValue(s_contextMenuStripProperty, value); 1716internal bool IsAccessibilityObjectCreated => Properties.ContainsKey(s_accessibilityProperty); 1744if (Properties.TryGetValue(s_cursorProperty, out Cursor? cursor)) 1757Cursor? localCursor = Properties.GetValueOrDefault<Cursor>(s_cursorProperty); 1761Properties.AddOrRemoveValue(s_cursorProperty, value); 1809if (!Properties.TryGetValue(s_bindingsProperty, out ControlBindingsCollection? bindings)) 1811bindings = Properties.AddValue(s_bindingsProperty, new ControlBindingsCollection(this)); 1942if (Properties.TryGetValue(s_fontHandleWrapperProperty, out FontHandleWrapper? fontHandle)) 1945Properties.RemoveValue(s_fontHandleWrapperProperty); 2088Font? previous = Properties.GetValueOrDefault<Font>(s_fontProperty); 2097Properties.AddOrRemoveValue(s_fontProperty, value); 2122if (Properties.ContainsKey(s_fontHeightProperty)) 2124Properties.AddValue(s_fontHeightProperty, (value is null) ? -1 : value.Height); 2197if (!Properties.TryGetValue(s_fontHandleWrapperProperty, out FontHandleWrapper? fontHandle)) 2199fontHandle = Properties.AddValue(s_fontHandleWrapperProperty, new FontHandleWrapper(font)); 2214if (Properties.TryGetValue(s_currentAmbientFontProperty, out Font? currentAmbient) && currentAmbient == ambientFont) 2216fontHandle = Properties.GetValueOrDefault<FontHandleWrapper?>(s_fontHandleWrapperProperty); 2220Properties.AddValue(s_currentAmbientFontProperty, ambientFont); 2223fontHandle ??= Properties.AddValue(s_fontHandleWrapperProperty, new FontHandleWrapper(ambientFont)); 2237if (Properties.TryGetValue(s_fontHeightProperty, out int fontHeight) && fontHeight != -1) 2244return Properties.AddValue(s_fontHeightProperty, font.Height); 2259Properties.AddValue(s_fontHeightProperty, localFontHeight); 2264set => Properties.AddValue(s_fontHeightProperty, value); 2277Properties.TryGetValue(s_foreColorProperty, out Color color); 2307Properties.AddOrRemoveValue(s_foreColorProperty, value); 2871string? name = Properties.GetValueOrDefault<string>(s_namePropertyProperty); 2879set => Properties.AddOrRemoveString(s_namePropertyProperty, value); 2941internal Color RawBackColor => Properties.GetValueOrDefault<Color>(s_backColorProperty); 2991get => Properties.GetValueOrDefault<Region>(s_regionProperty); 3005Region? oldRegion = Properties.AddOrRemoveValue(s_regionProperty, region); 3131if (!Properties.TryGetValue(s_rightToLeftProperty, out RightToLeft rightToLeft) 3146if (Properties.ContainsKey(s_rightToLeftProperty) || value != RightToLeft.Inherit) 3148Properties.AddValue(s_rightToLeftProperty, value); 3195if (Properties.ContainsKey(s_fontHeightProperty)) 3197Properties.AddValue(s_fontHeightProperty, (value is null) ? -1 : value.Height); 3219bool checkFont = !Properties.ContainsKey(s_fontProperty); 3220bool checkBackColor = !Properties.ContainsKey(s_backColorProperty); 3221bool checkForeColor = !Properties.ContainsKey(s_foreColorProperty); 3222bool checkCursor = !Properties.ContainsKey(s_cursorProperty); 3249Properties.AddValue(s_ambientPropertiesServiceProperty, newAmbients); 3385get => Properties.GetValueOrDefault<object>(s_userDataProperty); 3386set => Properties.AddOrRemoveValue(s_userDataProperty, value); 3422if (control.IsActiveX && control.Properties.TryGetValue(s_activeXImplProperty, out ActiveXImpl? activeX)) 3664get => Properties.TryGetValue(s_useCompatibleTextRenderingProperty, out bool value) 3671Properties.AddValue(s_useCompatibleTextRenderingProperty, value); 3695if (!Properties.TryGetValue(s_controlVersionInfoProperty, out ControlVersionInfo? info)) 3698Properties.AddValue(s_controlVersionInfoProperty, info); 4519if (!Properties.ContainsKey(s_bindingManagerProperty) && Created) 4602int updateCount = Properties.GetValueOrDefault(s_updateCountProperty, 0); 4608Properties.AddOrRemoveValue( 4855if (!Properties.ContainsKey(s_bindingManagerProperty) && ParentInternal is not null && !controlIsAlreadyCreated) 4998if (Properties.TryGetValue(s_backBrushProperty, out HBRUSH backBrush)) 5005Properties.RemoveValue(s_backBrushProperty); 5010if (Properties?.TryGetValue(s_contextMenuStripProperty, out ContextMenuStrip? menu) == true) 5036Properties?.RemoveValue(s_ncAccessibilityProperty); 5039Properties?.GetValueOrDefault<ActiveXImpl>(s_activeXImplProperty)?.Dispose(); 5297int updateCount = Properties.GetValueOrDefault(s_updateCountProperty, 0); 5303Properties.AddOrRemoveValue( 5585=> Properties.GetValueOrDefault(s_updateCountProperty, 0) > 0; 6502internal bool IsFontSet() => Properties.ContainsKey(s_fontProperty); 6903if (Properties.TryGetValue(s_backBrushProperty, out HBRUSH backBrush)) 6913Properties.RemoveValue(s_backBrushProperty); 6975if (Properties.ContainsKey(s_bindingsProperty)) 7178int changeVersion = Properties.GetValueOrDefault(s_visualStylesModeChangeVersionProperty, 0) + 1; 7179Properties.AddValue(s_visualStylesModeChangeVersionProperty, changeVersion); 7278if (Properties.ContainsKey(s_fontHeightProperty)) 7280Properties.AddValue(s_fontHeightProperty, -1); 7376Color backColor = Properties.GetValueOrDefault<Color>(s_backColorProperty); 7392if (!Properties.ContainsKey(s_bindingManagerProperty)) 7401if (!Properties.ContainsKey(s_cursorProperty)) 7410if (Properties.ContainsKey(s_dataContextProperty)) 7412if (Equals(Properties.GetValueOrDefault<object>(s_dataContextProperty), Parent?.DataContext)) 7415Properties.RemoveValue(s_dataContextProperty); 7466if (Properties.ContainsKey(s_visualStylesModeProperty)) 7469|| Properties.GetValueOrDefault<VisualStylesMode>(s_visualStylesModeProperty) 7480Properties.RemoveValue(s_visualStylesModeProperty); 7573=> _state.Source.Properties.GetValueOrDefault(s_visualStylesModeChangeVersionProperty, 0) 7575&& Control.Properties.GetValueOrDefault(s_visualStylesModeChangeVersionProperty, 0) 7585control.Properties.GetValueOrDefault(s_visualStylesModeChangeVersionProperty, 0), 7604control.Properties.GetValueOrDefault(s_visualStylesModeChangeVersionProperty, 0), 7780Color foreColor = Properties.GetValueOrDefault<Color>(s_foreColorProperty); 7790if (!Properties.TryGetValue(s_rightToLeftProperty, out RightToLeft rightToLeft) || rightToLeft == RightToLeft.Inherit) 8032if (Properties.TryGetValue(s_accessibilityProperty, out ControlAccessibleObject? clientAccessibleObject)) 8039if (Properties.TryGetValue(s_ncAccessibilityProperty, out ControlAccessibleObject? nonClientAccessibleObject)) 8101Properties.AddOrRemoveValue(s_deviceDpiInternal, (int)PInvoke.GetDpiForWindow(this)); 8187if (Properties.TryGetValue(s_accessibilityProperty, out AccessibleObject? accObj) 8195if (Properties.TryGetValue(s_ncAccessibilityProperty, out AccessibleObject? ncAccObj) 8203if (!RecreatingHandle && GetState(States.OwnCtlBrush) && Properties.TryGetValue(s_backBrushProperty, out HBRUSH backBrush)) 8205Properties.RemoveValue(s_backBrushProperty); 8805Properties.AddOrRemoveValue(s_systemVisualSettingsProperty, e.NewSettings); 8829int changeVersion = Properties.GetValueOrDefault(s_visualStylesModeChangeVersionProperty, 0) + 1; 8830Properties.AddValue(s_visualStylesModeChangeVersionProperty, changeVersion); 8862|| Properties.GetValueOrDefault<bool>(s_systemVisualSettingsRefreshPendingProperty)) 8867Properties.AddOrRemoveValue(s_systemVisualSettingsRefreshPendingProperty, true, defaultValue: false); 8873Properties.AddOrRemoveValue(s_systemVisualSettingsRefreshPendingProperty, false, defaultValue: false); 8881SystemVisualSettings? oldSettings = Properties.GetValueOrDefault<SystemVisualSettings>(s_systemVisualSettingsProperty); 8897=> Properties.AddOrRemoveValue( 10245Properties.RemoveValue(s_accessibilityProperty); 10249Properties.TryGetValue(s_accessibilityProperty, out accessibleObject); 11361Color backColor = Properties.GetValueOrDefault<Color>(s_backColorProperty); 11369internal virtual bool ShouldSerializeCursor() => Properties.ContainsKey(s_cursorProperty); 11381internal virtual bool ShouldSerializeForeColor() => !Properties.GetValueOrDefault<Color>(s_foreColorProperty).IsEmpty; 11387internal virtual bool ShouldSerializeFont() => Properties.ContainsKey(s_fontProperty); 11394Properties.TryGetValue(s_rightToLeftProperty, out RightToLeft rightToLeft) 11580Properties.TryGetValue(s_fontProperty, out font); 11592Properties.AddOrRemoveValue(s_fontProperty, scaledFont); 11597if (Properties.ContainsKey(s_fontHeightProperty)) 11599Properties.AddValue(s_fontHeightProperty, scaledFont.Height); 11993if (!Properties.TryGetValue(s_contextMenuStripProperty, out ContextMenuStrip? contextMenuStrip)) 13514get { return Properties; }

38if (!Properties.TryGetValue(s_imeModeProperty, out ImeMode cachedImeMode)) 63Properties.AddValue(s_imeModeProperty, value); 110int val = Properties.GetValueOrDefault<int>(s_disableImeModeChangedCountProperty); 114set => Properties.AddValue(s_disableImeModeChangedCountProperty, value); 231get => Properties.GetValueOrDefault<int>(s_imeWmCharsToIgnoreProperty); 238Properties.AddValue(s_imeWmCharsToIgnoreProperty, value); 250get => Properties.GetValueOrDefault(s_lastCanEnableImeProperty, true); 251set => Properties.AddOrRemoveValue(s_lastCanEnableImeProperty, value, defaultValue: true); 501return Properties.TryGetValue(s_imeModeProperty, out ImeMode imeMode) && imeMode != DefaultImeMode; 627Properties.AddValue(s_imeWmCharsToIgnoreProperty, ImeCharsToIgnoreEnabled);

57=> Properties.ContainsKey(s_recursiveInvalidateAfterSuspendPaintingProperty); 60=> Properties.GetValueOrDefault(s_suspendPaintingCountProperty, 0); 63=> Properties.AddValue(s_recursiveInvalidateAfterSuspendPaintingProperty, true); 67int suspendPaintingCount = Properties.GetValueOrDefault( 71Properties.AddOrRemoveValue( 81int suspendPaintingCount = Properties.GetValueOrDefault( 90Properties.AddOrRemoveValue( 119if (Properties.GetValueOrDefault(s_suspendPaintingCountProperty, 0) != 0 120|| !Properties.ContainsKey(s_recursiveInvalidateAfterSuspendPaintingProperty)) 125Properties.RemoveValue(s_recursiveInvalidateAfterSuspendPaintingProperty);

431get => Properties.GetValueOrDefault(s_propDrawMode, DrawMode.Normal); 439Properties.AddOrRemoveValue(s_propDrawMode, value, defaultValue: DrawMode.Normal); 452get => Properties.TryGetValue(s_propDropDownWidth, out int dropDownWidth) 460if (Properties.GetValueOrDefault<int>(s_propDropDownWidth) != value) 462Properties.AddValue(s_propDropDownWidth, value); 482get => Properties.TryGetValue(s_propDropDownHeight, out int dropDownHeight) 490if (Properties.GetValueOrDefault<int>(s_propDropDownHeight) != value) 492Properties.AddValue(s_propDropDownHeight, value); 649return Properties.TryGetValue(s_propItemHeight, out int itemHeight) ? itemHeight : FontHeight + 2; 664if (Properties.GetValueOrDefault<int>(s_propItemHeight) != value) 666Properties.AddValue(s_propItemHeight, value); 698get => Properties.GetStringOrEmptyString(s_propMatchingText); 699set => Properties.AddOrRemoveString(s_propMatchingText, value); 749return Properties.GetValueOrDefault<int>(s_propMaxLength); 760Properties.AddValue(s_propMaxLength, value); 1138get => Properties.GetValueOrDefault(s_propStyle, ComboBoxStyle.DropDown); 1158Properties.AddOrRemoveValue(s_propStyle, value, defaultValue: ComboBoxStyle.DropDown); 2392if (Properties.TryGetValue(s_propDropDownWidth, out int dropDownWidth)) 2397if (Properties.ContainsKey(s_propItemHeight)) 3206Properties.RemoveValue(s_propDropDownWidth); 3211Properties.RemoveValue(s_propItemHeight); 3435internal bool ShouldSerializeDropDownWidth() => Properties.ContainsKey(s_propDropDownWidth); 3440internal bool ShouldSerializeItemHeight() => Properties.ContainsKey(s_propItemHeight); 4192if (!Properties.TryGetValue(s_propFlatComboAdapter, out FlatComboAdapter? comboAdapter) || !comboAdapter.IsValid(this)) 4195Properties.AddValue(s_propFlatComboAdapter, comboAdapter);

52=> Properties.RemoveValue(s_propFlatComboAdapter);

2962if (!Properties.TryGetValue(s_propToolTip, out ToolTip? toolTip)) 2964toolTip = Properties.AddValue(

5636if (Properties.TryGetValue(s_propToolTip, out ToolTip? keyboardToolTip))

370Image? image = Properties.GetValueOrDefault<Image>(s_propImage); 390Properties.AddOrRemoveValue(s_propImage, value); 443Properties.RemoveValue(s_propImage); 473Properties.RemoveValue(s_propImage); 485if (!Properties.TryGetValue(s_propImageIndex, out LabelImageIndexer? imageIndexer)) 493set => Properties.AddOrRemoveValue(s_propImageIndex, value); 505get => Properties.GetValueOrDefault<ImageList>(s_propImageList); 525Properties.RemoveValue(s_propImage); 528Properties.AddOrRemoveValue(s_propImageList, value); 550get => Properties.GetValueOrDefault(s_propImageAlign, ContentAlignment.MiddleCenter); 557Properties.AddOrRemoveValue(s_propImageAlign, value, defaultValue: ContentAlignment.MiddleCenter); 694get => Properties.GetValueOrDefault(s_propTextAlign, ContentAlignment.TopLeft); 701Properties.AddOrRemoveValue(s_propTextAlign, value, defaultValue: ContentAlignment.TopLeft); 854if (animate == currentlyAnimating || !Properties.TryGetValue(s_propImage, out Image? image)) 951Properties.RemoveValue(s_propImageList); 954Properties.RemoveValue(s_propImage); 1404private bool ShouldSerializeImage() => Properties.ContainsKey(s_propImage);

2229if (Properties.TryGetValue(s_propDelayedUpdateItems, out List<ListViewItem>? newItems)) 2232Properties.RemoveValue(s_propDelayedUpdateItems); 2363if (_updateCounter++ == 0 && !Properties.ContainsKey(s_propDelayedUpdateItems)) 2365Properties.AddValue(s_propDelayedUpdateItems, new List<ListViewItem>()); 3167if (--_updateCounter == 0 && Properties.ContainsKey(s_propDelayedUpdateItems)) 4013if (_updateCounter > 0 && Properties.TryGetValue(s_propDelayedUpdateItems, out List<ListViewItem>? itemList))

387if (Properties.TryGetValue(s_propBindingContext, out BindingContext? context)) 403if (Properties.AddOrRemoveValue(s_propBindingContext, value) != value) 1401if (!IsDropDown && !IsDisposed && !Properties.TryGetValue(s_propToolStripPanelCell, out toolStripPanelCell)) 1403toolStripPanelCell = Properties.AddValue(s_propToolStripPanelCell, new ToolStripPanelCell(this)); 1676if (!Properties.TryGetValue(s_propToolTip, out ToolTip? toolTip)) 1678toolTip = Properties.AddValue(s_propToolTip, new ToolTip()); 1692ToolStripTextDirection textDirection = Properties.GetValueOrDefault(s_propTextDirection, ToolStripTextDirection.Horizontal); 1704Properties.AddOrRemoveValue(s_propTextDirection, value, defaultValue: ToolStripTextDirection.Horizontal); 1891if (Properties.TryGetValue(s_propToolStripPanelCell, out ToolStripPanelCell? toolStripPanelCell)) 1894Properties.RemoveValue(s_propToolStripPanelCell); 1901if (Properties.TryGetValue(s_propToolTip, out ToolTip? toolTip)) 1904Properties.RemoveValue(s_propToolTip);

85Properties.RemoveValue(s_propOpacity); 568get => Properties.GetValueOrDefault(s_propOpacity, 1.0d); 573Properties.AddOrRemoveValue(s_propOpacity, value, 1.0d); 753get => Properties.GetValueOrDefault<Control>(s_propSourceControl); 754set => Properties.AddOrRemoveValue(s_propSourceControl, value);

72get { return Properties; }

274if (!Properties.TryGetValue(s_propToolStripPanelRowCollection, out ToolStripPanelRowCollection? rowCollection)) 276rowCollection = Properties.AddValue(s_propToolStripPanelRowCollection, CreateToolStripPanelRowCollection());

221get => Properties.GetValueOrDefault<IButtonControl?>(s_propAcceptButton); 224if (Properties.AddOrRemoveValue(s_propAcceptButton, value) != value) 336get => Properties.GetValueOrDefault<Form>(s_propActiveMdiChild); 337set => Properties.AddOrRemoveValue(s_propActiveMdiChild, value); 344get => Properties.GetValueOrDefault<Form>(s_propFormerlyActiveMdiChild); 345set => Properties.AddOrRemoveValue(s_propFormerlyActiveMdiChild, value); 372Properties.RemoveValue(s_propOpacity); 374if (Properties.ContainsKey(s_propTransparencyKey)) 376Properties.AddValue(s_propTransparencyKey, Color.Empty); 713get => Properties.GetValueOrDefault<IButtonControl>(s_propCancelButton); 716Properties.AddOrRemoveValue(s_propCancelButton, value); 779if (Properties.TryGetValue(s_propDialogOwner, out IWin32Window? dialogOwner)) 803Form? formMdiParent = Properties.GetValueOrDefault<Form>(s_propFormMdiParent); 1070public bool IsMdiChild => Properties.ContainsKey(s_propFormMdiParent); 1076get => Properties.GetValueOrDefault<bool>(s_propMdiChildFocusable); 1077set => Properties.AddOrRemoveValue(s_propMdiChildFocusable, value); 1158get => Properties.GetValueOrDefault<Rectangle>(s_propMaximizedBounds); 1163Properties.AddValue(s_propMaximizedBounds, value); 1189get => Properties.TryGetValue(s_propMaxTrackSize, out Size maximumSize) ? maximumSize : Size.Empty; 1206Properties.AddValue(s_propMaxTrackSize, value); 1227Properties.AddValue(s_propMinTrackSize, minimumSize); 1260get => Properties.GetValueOrDefault<MenuStrip>(s_propMainMenuStrip); 1263Properties.AddOrRemoveValue(s_propMainMenuStrip, value); 1302get => Properties.TryGetValue(s_propMinTrackSize, out Size minimumSize) ? minimumSize : DefaultMinimumSize; 1323Properties.AddValue(s_propMinTrackSize, value); 1344Properties.AddValue(s_propMaxTrackSize, maximumSize); 1452get => Properties.GetValueOrDefault<Form>(s_propFormMdiParent); 1455Form? formMdiParent = Properties.GetValueOrDefault<Form>(s_propFormMdiParent); 1494Properties.AddOrRemoveValue(s_propFormMdiParent, value); 1524get => Properties.GetValueOrDefault<MdiWindowListStrip>(s_propMdiWindowListStrip); 1525set => Properties.AddOrRemoveValue(s_propMdiWindowListStrip, value); 1530get => Properties.GetValueOrDefault<MdiControlStrip>(s_propMdiControlStrip); 1531set => Properties.AddOrRemoveValue(s_propMdiControlStrip, value); 1569get => Properties.GetValueOrDefault(s_propOpacity, 1.0d); 1574Properties.AddOrRemoveValue(s_propOpacity, value, defaultValue: 1.0d); 1616public Form[] OwnedForms => Properties.TryGetValue(s_propOwnedForms, out List<Form>? ownedForms) ? ([.. ownedForms]) : ([]); 1644Properties.RemoveValue(s_propOwner); 1648Properties.AddOrRemoveValue(s_propOwner, value); 1656internal Form? OwnerInternal => Properties.GetValueOrDefault<Form?>(s_propOwner); 1761get => Properties.GetValueOrDefault(s_propFormScreenCaptureMode, ScreenCaptureMode.Allow); 1775Properties.AddOrRemoveValue(s_propFormScreenCaptureMode, value); 2086get => Properties.GetValueOrDefault(s_propTransparencyKey, Color.Empty); 2089Properties.AddOrRemoveValue(s_propTransparencyKey, value, defaultValue: Color.Empty); 2268get => Properties.GetValueOrDefault(s_propFormCornerPreference, FormCornerPreference.Default); 2285Properties.AddOrRemoveValue(s_propFormCornerPreference, value, defaultValue: FormCornerPreference.Default); 2356get => Properties.GetValueOrDefault(s_propFormBorderColor, Color.Empty); 2364Properties.AddOrRemoveValue(s_propFormBorderColor, value, defaultValue: Color.Empty); 2416get => Properties.GetValueOrDefault(s_propFormCaptionBackColor, Color.Empty); 2424Properties.AddOrRemoveValue(s_propFormCaptionBackColor, value, defaultValue: Color.Empty); 2477get => Properties.GetValueOrDefault(s_propFormCaptionTextColor, Color.Empty); 2485Properties.AddOrRemoveValue(s_propFormCaptionTextColor, value, defaultValue: Color.Empty); 2894if (!Properties.TryGetValue(s_propOwnedForms, out List<Form>? ownedForms)) 2897Properties.AddValue(s_propOwnedForms, ownedForms); 3161if (Properties.TryGetValue(s_propFormMdiParent, out Form? formMdiParent) && formMdiParent.MdiClient != value) 3163Properties.RemoveValue(s_propFormMdiParent); 3348Form? form = Properties.GetValueOrDefault<Form>(s_propFormMdiParent); 3523Properties.RemoveValue(s_propAcceptButton); 3524Properties.RemoveValue(s_propCancelButton); 3525Properties.RemoveValue(s_propDefaultButton); 3526Properties.RemoveValue(s_propActiveMdiChild); 3540if (Properties.TryGetValue(s_propOwner, out Form? owner)) 3543Properties.RemoveValue(s_propOwner); 3546Properties.RemoveValue(s_propDialogOwner); 3548if (Properties.TryGetValue(s_propOwnedForms, out List<Form>? ownedForms)) 3563if (Properties.TryGetValue(s_propDummyMdiMenu, out HMENU dummyMenu)) 3565Properties.RemoveValue(s_propDummyMdiMenu); 3712IWin32Window? dialogOwner = Properties.GetValueOrDefault<IWin32Window>(s_propDialogOwner); 4788if (Properties.TryGetValue(s_propDefaultButton, out IButtonControl? button)) 4801if (Properties.TryGetValue(s_propCancelButton, out button)) 4894if (Properties.TryGetValue(s_propOwnedForms, out List<Form>? ownedForms)) 4922if (Properties.TryGetValue(s_propOwnedForms, out List<Form>? ownedForms)) 5023if (Properties.TryGetValue(s_propFormBorderColor, out Color? formBorderColor)) 5028if (Properties.TryGetValue(s_propFormCaptionBackColor, out Color? formCaptionBackColor)) 5033if (Properties.TryGetValue(s_propFormCaptionTextColor, out Color? formCaptionTextColor)) 5038if (Properties.TryGetValue(s_propFormCornerPreference, out FormCornerPreference? cornerPreference)) 5073if (Properties.TryGetValue(s_propOwnedForms, out List<Form>? ownedForms)) 5404IButtonControl? existing = Properties.GetValueOrDefault<IButtonControl>(s_propDefaultButton); 5410Properties.AddOrRemoveValue(s_propDefaultButton, button); 5544Properties.AddOrRemoveValue(s_propDialogOwner, owner); 5819Properties.AddOrRemoveValue(s_propDialogOwner, owner); 5880Properties.RemoveValue(s_propDialogOwner); 6181if (Properties.TryGetValue(s_propOwner, out Form? owner)) 6257if (!Properties.TryGetValue(s_propDummyMdiMenu, out HMENU dummyMenu) || recreateMenu) 6262Properties.AddValue(s_propDummyMdiMenu, dummyMenu); 6801if (Properties.TryGetValue(s_propOwnedForms, out List<Form>? ownedForms)) 6870if (Properties.TryGetValue(s_propOwnedForms, out List<Form>? ownedForms)) 7004Debug.Assert(Properties.ContainsKey(s_propFormMdiParent), "how is formMdiParent null?"); 7007if (Properties.TryGetValue(s_propFormMdiParent, out Form? formMdiParent))

49if (!Properties.TryGetValue(s_propFormRevealMode, out FormRevealMode value) 65Properties.RemoveValue(s_propFormRevealMode); 69Properties.AddValue(s_propFormRevealMode, value); 97private bool ShouldSerializeFormRevealMode() => Properties.ContainsKey(s_propFormRevealMode); 99private void ResetFormRevealMode() => Properties.RemoveValue(s_propFormRevealMode); 103get => Properties.GetValueOrDefault(s_propFormAppearanceCloaked, false); 104set => Properties.AddOrRemoveValue(s_propFormAppearanceCloaked, value, defaultValue: false);

571private void AxContainerFormCreated() => Properties.GetValueOrDefault<AxHost.AxContainer>(s_propAxContainer)?.FormCreated(); 580if (!Properties.TryGetValue(s_propAxContainer, out AxHost.AxContainer? container)) 582container = Properties.AddValue(s_propAxContainer, new AxHost.AxContainer(this)); 838if (Properties.ContainsKey(s_propAxContainer))