RulesDescription.md
September 14, 2024 ยท View on GitHub
Rules in Axe.Windows
| Name | Severity | Description | Standard referenced |
|---|---|---|---|
| BoundingRectangleNotAllZeros | Error | The BoundingRectangle property must not be defined as [0,0,0,0] | Section 508 502.3.1 ObjectInformation |
| BoundingRectangleNotNull | Error | An on-screen element must not have a null BoundingRectangle property. | Section 508 502.3.1 ObjectInformation |
| BoundingRectangleNotValidButOffScreen | NeedsReview | The BoundingRectangle property is not valid, but the element is off-screen. | Section 508 502.3.1 ObjectInformation |
| BoundingRectangleDataFormatCorrect | Error | The BoundingRectangle property must return a valid rectangle. | Section 508 502.3.1 ObjectInformation |
| BoundingRectangleCompletelyObscuresContainer | Error | An element's BoundingRectangle must not obscure its container element. | Section 508 502.3.1 ObjectInformation |
| BoundingRectangleContainedInParent | Warning | An element's BoundingRectangle must be contained within its parent element. | Section 508 502.3.1 ObjectInformation |
| BoundingRectangleSizeReasonable | Error | The BoundingRectangle property must represent an area of at least 25 pixels. | Section 508 502.3.1 ObjectInformation |
| BoundingRectangleNotNullListViewXAML | Error | An on-screen element must not have a null BoundingRectangle property. | Section 508 502.3.1 ObjectInformation |
| BoundingRectangleNotNullTextBlockXAML | Error | An on-screen element must not have a null BoundingRectangle property. | Section 508 502.3.1 ObjectInformation |
| SplitButtonInvokeAndTogglePatterns | Error | A split button must support exactly one of the Invoke or Toggle patterns. | WCAG 4.1.2 NameRoleValue |
| ButtonShouldHavePatterns | Error | A button must support one of these patterns: Invoke, Toggle, or ExpandCollapse. | WCAG 4.1.2 NameRoleValue |
| ButtonInvokeAndTogglePatterns | Error | A button must not support both the Invoke and Toggle patterns. | WCAG 4.1.2 NameRoleValue |
| ButtonInvokeAndExpandCollapsePatterns | Warning | A button may have the Invoke and ExpandCollapse patterns together, but it is not recommended. If possible, please have only one of them. | WCAG 1.3.1 InfoAndRelationships |
| ButtonToggleAndExpandCollapsePatterns | Error | A button must not support both the Toggle and ExpandCollapse patterns. | WCAG 4.1.2 NameRoleValue |
| SiblingUniqueAndFocusable | Error | Focusable sibling elements must not have the same Name and LocalizedControlType. | WCAG 4.1.2 NameRoleValue |
| SiblingUniqueAndFocusableWin32 | NeedsReview | Focusable sibling elements must not have the same Name and LocalizedControlType. | WCAG 4.1.2 NameRoleValue |
| SiblingUniqueAndNotFocusable | NeedsReview | The given element has siblings with the same Name and LocalizedControlType. | WCAG 4.1.2 NameRoleValue |
| ChildrenNotAllowedInContentView | Error | A separator must not have any children with IsContentElement set to true. | Section 508 502.3.1 ObjectInformation |
| ContentViewButtonStructure | NeedsReview | The given element is expected to have the following structure: Button and NoChild(IsContentElement). | WCAG 1.3.1 InfoAndRelationships |
| ContentViewCalendarStructure | NeedsReview | The given element is expected to have the following structure: Calendar and (NoChild(IsContentElement) or AllChildren(not(IsContentElement) or ListItem)). | WCAG 1.3.1 InfoAndRelationships |
| ContentViewCheckBoxStructure | NeedsReview | The given element is expected to have the following structure: CheckBox and NoChild(IsContentElement). | WCAG 1.3.1 InfoAndRelationships |
| ContentViewComboBoxStructure | NeedsReview | The given element is expected to have the following structure: ComboBox and (NoChild(IsContentElement) or AllChildren(not(IsContentElement) or ListItem)). | WCAG 1.3.1 InfoAndRelationships |
| ContentViewDataGridStructure | NeedsReview | The given element is expected to have the following structure: DataGrid and (NoChild(IsContentElement) or AllChildren(not(IsContentElement) or DataItem)). | WCAG 1.3.1 InfoAndRelationships |
| ContentViewEditStructure | NeedsReview | The given element is expected to have the following structure: Edit and NoChild(IsContentElement). | WCAG 1.3.1 InfoAndRelationships |
| ContentViewHyperlinkStructure | NeedsReview | The given element is expected to have the following structure: Hyperlink and NoChild(IsContentElement). | WCAG 1.3.1 InfoAndRelationships |
| ContentViewListStructure | NeedsReview | The given element is expected to have the following structure: List and (NoChild(IsContentElement) or AllChildren(not(IsContentElement) or (DataItem or ListItem or Group))). | WCAG 1.3.1 InfoAndRelationships |
| ContentViewListItemStructure | NeedsReview | The given element is expected to have the following structure: ListItem and NoChild(IsContentElement). | WCAG 1.3.1 InfoAndRelationships |
| ContentViewMenuStructure | NeedsReview | The given element is expected to have the following structure: Menu and AnyChild(IsContentElement) and AllChildren(not(IsContentElement) or MenuItem). | WCAG 1.3.1 InfoAndRelationships |
| ContentViewProgressBarStructure | NeedsReview | The given element is expected to have the following structure: ProgressBar and NoChild(IsContentElement). | WCAG 1.3.1 InfoAndRelationships |
| ContentViewRadioButtonStructure | NeedsReview | The given element is expected to have the following structure: RadioButton and NoChild(IsContentElement). | WCAG 1.3.1 InfoAndRelationships |
| ContentViewSliderStructure | NeedsReview | The given element is expected to have the following structure: Slider and (NoChild(IsContentElement) or AllChildren(not(IsContentElement) or ListItem)). | WCAG 1.3.1 InfoAndRelationships |
| ContentViewSpinnerStructure | NeedsReview | The given element is expected to have the following structure: Spinner and (NoChild(IsContentElement) or AllChildren(not(IsContentElement) or ListItem)). | WCAG 1.3.1 InfoAndRelationships |
| ContentViewSplitButtonStructure | NeedsReview | The given element is expected to have the following structure: SplitButton and (CountChildren(Button and AnyChild(IsContentElement) and AllChildren(not(IsContentElement) or MenuItem)) == 1 or CountChildren(Button and AnyChild(IsContentElement) and AllChildren(not(IsContentElement) or MenuItem)) == 2) and AllChildren(not(IsContentElement) or Button). | WCAG 1.3.1 InfoAndRelationships |
| ContentViewStatusBarStructure | NeedsReview | The given element is expected to have the following structure: StatusBar and (NoChild(IsContentElement) or AllChildren(not(IsContentElement) or (Button or Edit or Image or ProgressBar))). | WCAG 1.3.1 InfoAndRelationships |
| ContentViewTabStructure | NeedsReview | The given element is expected to have the following structure: Tab and AnyChild(IsContentElement) and AllChildren(not(IsContentElement) or (Group or TabItem)). | WCAG 1.3.1 InfoAndRelationships |
| ContentViewTreeStructure | NeedsReview | The given element is expected to have the following structure: Tree and (NoChild(IsContentElement) or AllChildren(not(IsContentElement) or (DataItem or TreeItem))). | WCAG 1.3.1 InfoAndRelationships |
| ContentViewTreeItemStructure | NeedsReview | The given element is expected to have the following structure: TreeItem and (NoChild(IsContentElement) or AllChildren(not(IsContentElement) or TreeItem)). | WCAG 1.3.1 InfoAndRelationships |
| ControlViewButtonStructure | NeedsReview | The given element is expected to have the following structure: Button and (NoChild(IsControlElement) or AllChildren(not(IsControlElement) or (Image or Text))). | WCAG 1.3.1 InfoAndRelationships |
| ControlViewCalendarStructure | NeedsReview | The given element is expected to have the following structure: Calendar / (DataGrid and NoChild(Header) or CountChildren(Header) == 1 and AnyChild(Header and (NoChild(HeaderItem) or CountChildren(HeaderItem) == 7)) and NoChild(Button) or CountChildren(Button) == 2 and (CountChildren(ListItem) > 0)). | WCAG 1.3.1 InfoAndRelationships |
| ControlViewComboBoxStructure | NeedsReview | The given element is expected to have the following structure: ComboBox and CountChildren(Button) == 1 and CountChildren(Edit) <= 1 and CountChildren(List) <= 1 and AllChildren(not(IsControlElement) or (Button or Edit or List)). | WCAG 1.3.1 InfoAndRelationships |
| ControlViewCheckBoxStructure | NeedsReview | The given element is expected to have the following structure: CheckBox and NoChild(IsControlElement). | WCAG 1.3.1 InfoAndRelationships |
| ControlViewDataGridStructure | NeedsReview | The given element is expected to have the following structure: DataGrid and CountChildren(Header) <= 2 and (NoChild(IsControlElement) or AllChildren(not(IsControlElement) or (Header or DataItem))). | WCAG 1.3.1 InfoAndRelationships |
| ControlViewEditStructure | NeedsReview | The given element is expected to have the following structure: Edit and NoChild(IsControlElement). | WCAG 1.3.1 InfoAndRelationships |
| ControlViewHeaderStructure | NeedsReview | The given element is expected to have the following structure: Header and AnyChild(IsControlElement) and AllChildren(not(IsControlElement) or HeaderItem). | WCAG 1.3.1 InfoAndRelationships |
| ControlViewHeaderItemStructure | NeedsReview | The given element is expected to have the following structure: HeaderItem and NoChild(IsControlElement). | WCAG 1.3.1 InfoAndRelationships |
| ControlViewHyperlinkStructure | NeedsReview | The given element is expected to have the following structure: Hyperlink and NoChild(IsControlElement). | WCAG 1.3.1 InfoAndRelationships |
| ControlViewImageStructure | NeedsReview | The given element is expected to have the following structure: Image and NoChild(IsControlElement). | WCAG 1.3.1 InfoAndRelationships |
| ControlViewListStructure | NeedsReview | The given element is expected to have the following structure: List and (NoChild(IsControlElement) or AllChildren(not(IsControlElement) or (DataItem or ListItem or Group or ScrollBar))). | WCAG 1.3.1 InfoAndRelationships |
| ControlViewListItemStructure | NeedsReview | The given element is expected to have the following structure: ListItem and (NoChild(IsControlElement) or AllChildren(not(IsControlElement) or (Edit or Image or Text))). | WCAG 1.3.1 InfoAndRelationships |
| ControlViewMenuStructure | NeedsReview | The given element is expected to have the following structure: Menu and AnyChild(IsControlElement) and AllChildren(not(IsControlElement) or MenuItem). | WCAG 1.3.1 InfoAndRelationships |
| ControlViewProgressBarStructure | NeedsReview | The given element is expected to have the following structure: ProgressBar and NoChild(IsControlElement). | WCAG 1.3.1 InfoAndRelationships |
| ControlViewRadioButtonStructure | NeedsReview | The given element is expected to have the following structure: RadioButton and NoChild(IsControlElement). | WCAG 1.3.1 InfoAndRelationships |
| ControlViewScrollbarStructure | NeedsReview | The given element is expected to have the following structure: ScrollBar and (CountChildren(Button) == 0 or CountChildren(Button) == 2 or CountChildren(Button) == 4) and CountChildren(Thumb) == 0 or CountChildren(Thumb) == 1. | WCAG 1.3.1 InfoAndRelationships |
| ControlViewSemanticZoomStructure | NeedsReview | The given element is expected to have the following structure: SemanticZoom and (NoChild(IsControlElement) or AllChildren(not(IsControlElement) or (List or ListItem))). | WCAG 1.3.1 InfoAndRelationships |
| ControlViewSeparatorStructure | NeedsReview | The given element is expected to have the following structure: Separator and NoChild(IsControlElement). | WCAG 1.3.1 InfoAndRelationships |
| ControlViewSliderStructure | NeedsReview | The given element is expected to have the following structure: Slider and (CountChildren(Button) == 2 or CountChildren(Button) == 4) and CountChildren(Thumb) == 1 and AllChildren(not(IsControlElement) or (Button or Thumb or ListItem)). | WCAG 1.3.1 InfoAndRelationships |
| ControlViewSpinnerStructure | NeedsReview | The given element is expected to have the following structure: Spinner and CountChildren(Button) == 2 and CountChildren(Edit) <= 1 and AllChildren(not(IsControlElement) or (Button or Edit or ListItem)). | WCAG 1.3.1 InfoAndRelationships |
| ControlViewSplitButtonStructure | NeedsReview | The given element is expected to have the following structure: SplitButton and (CountChildren(Button and NoChild(IsControlElement) or CountChildren(MenuItem) == 1 and AllChildren(not(IsControlElement) or MenuItem)) == 1 or CountChildren(Button and NoChild(IsControlElement) or CountChildren(MenuItem) == 1 and AllChildren(not(IsControlElement) or MenuItem)) == 2) and CountChildren(Image) <= 1 and CountChildren(Text) <= 1 and AllChildren(not(IsControlElement) or (Button or Image or Text)). | WCAG 1.3.1 InfoAndRelationships |
| ControlViewStatusBarStructure | NeedsReview | The given element is expected to have the following structure: StatusBar and (NoChild(IsControlElement) or AllChildren(not(IsControlElement) or (Button or Edit or Image or ProgressBar))). | WCAG 1.3.1 InfoAndRelationships |
| ControlViewTabStructure | NeedsReview | The given element is expected to have the following structure: Tab and AnyChild(IsControlElement) and AllChildren(not(IsControlElement) or (Group or ScrollBar or TabItem)). | WCAG 1.3.1 InfoAndRelationships |
| ControlViewThumbStructure | NeedsReview | The given element is expected to have the following structure: Thumb and NoChild(IsControlElement). | WCAG 1.3.1 InfoAndRelationships |
| ControlViewToolTipStructure | NeedsReview | The given element is expected to have the following structure: ToolTip and (NoChild(IsControlElement) or AllChildren(not(IsControlElement) or (Image or Text))). | WCAG 1.3.1 InfoAndRelationships |
| ControlViewTreeStructure | NeedsReview | The given element is expected to have the following structure: Tree and (NoChild(IsControlElement) or AllChildren(not(IsControlElement) or (DataItem or ScrollBar or TreeItem))). | WCAG 1.3.1 InfoAndRelationships |
| ControlViewTreeItemStructure | NeedsReview | The given element is expected to have the following structure: TreeItem and (NoChild(IsControlElement) or AllChildren(not(IsControlElement) or (Button or CheckBox or Image or TreeItem))). | WCAG 1.3.1 InfoAndRelationships |
| ComboBoxShouldNotSupportScrollPattern | Warning | A combo box should not support the Scroll pattern. This rule may be reported as a warning because some platforms have combo boxes that support the Scroll pattern by default, which app developers can't easily fix. | Section 508 502.3.10 AvailableActions |
| ControlShouldNotSupportInvokePattern | Error | An element of the given ControlType must not support the Invoke pattern. | Section 508 502.3.10 AvailableActions |
| ControlShouldNotSupportScrollPattern | Error | An element of the given ControlType must not support the Scroll pattern. | Section 508 502.3.10 AvailableActions |
| ControlShouldNotSupportValuePattern | Warning | An element of the given type should not support the Value pattern. | Section 508 502.3.10 AvailableActions |
| ControlShouldNotSupportWindowPattern | Warning | An element of the given type should not support the Window pattern. | Section 508 502.3.10 AvailableActions |
| ControlShouldSupportExpandCollapsePattern | Error | An element of the given ControlType must support the ExpandCollapse pattern. | Section 508 502.3.10 AvailableActions |
| ControlShouldSupportGridItemPattern | Error | An element whose parent supports the Grid pattern must support the GridItem pattern. | Section 508 502.3.10 AvailableActions |
| ControlShouldSupportGridPattern | Error | An element of the given ControlType must support the Grid pattern. | Section 508 502.3.10 AvailableActions |
| ControlShouldSupportInvokePattern | Error | An element of the given ControlType must support the Invoke pattern. | Section 508 502.3.10 AvailableActions |
| ControlShouldSupportScrollItemPattern | Error | An element whose parent supports the Scroll pattern must support the ScrollItem pattern. | Section 508 502.3.10 AvailableActions |
| ControlShouldSupportSelectionItemPattern | Error | An element of the given ControlType must support the SelectionItem pattern. | Section 508 502.3.10 AvailableActions |
| ControlShouldSupportSelectionPattern | Error | An element of the given ControlType must support the Selection pattern. | Section 508 502.3.10 AvailableActions |
| ControlShouldSupportSetInfoWPF | Error | The element's ControlType requires valid values for SizeOfSet and PositionInSet. | Section 508 502.3.1 ObjectInformation |
| ControlShouldSupportSetInfoXAML | Error | The element's ControlType requires valid values for SizeOfSet and PositionInSet. | Section 508 502.3.1 ObjectInformation |
| ControlShouldSupportSpreadsheetItemPattern | Error | An element whose parent supports the Spreadsheet pattern must support the SpreadsheetItem pattern. | Section 508 502.3.10 AvailableActions |
| ControlShouldSupportTableItemPattern | Error | An element whose parent supports the Table pattern must support the TableItem pattern. | Section 508 502.3.10 AvailableActions |
| ControlShouldSupportTablePattern | Error | An element of the given ControlType must support the Table pattern. | Section 508 502.3.10 AvailableActions |
| ControlShouldSupportTogglePattern | Error | An element of the given ControlType must support the Toggle pattern. | Section 508 502.3.10 AvailableActions |
| ControlShouldSupportTransformPattern | Error | An element that can be resized must support the Transform pattern. | Section 508 502.3.10 AvailableActions |
| ControlShouldSupportTextPattern | Error | An element of the given ControlType must support the Text pattern. | Section 508 502.3.10 AvailableActions |
| ControlShouldSupportTextPatternEditWinform | Error | An element of the given ControlType must support the Text pattern. | Section 508 502.3.10 AvailableActions |
| EditSupportsIncorrectRangeValuePattern | Error | The RangeValue pattern of an edit control must have a null LargeChange property. | Section 508 502.3.10 AvailableActions |
| HeadingLevelDescendsWhenNested | Error | An element's HeadingLevel must be greater than or equal to that of its ancestors. | WCAG 1.3.1 InfoAndRelationships |
| LandmarkBannerIsTopLevel | Error | An element with LocalizedLandmarkType "banner" must not descend from another landmark. | WCAG 1.3.1 InfoAndRelationships |
| LandmarkComplementaryIsTopLevel | Error | An element with LocalizedLandmarkType "complementary" must not descend from another landmark. | WCAG 1.3.1 InfoAndRelationships |
| LandmarkContentInfoIsTopLevel | Error | An element with LocalizedLandmarkType "contentinfo" must not descend from another landmark. | WCAG 1.3.1 InfoAndRelationships |
| LandmarkMainIsTopLevel | Error | An element with LocalizedLandmarkType "main" must not descend from another landmark. | WCAG 1.3.1 InfoAndRelationships |
| LandmarkNoDuplicateBanner | Error | A page must not have multiple elements with LocalizedLandmarkType "banner". | WCAG 1.3.1 InfoAndRelationships |
| LandmarkNoDuplicateContentInfo | Error | A page must not have multiple elements with LocalizedLandmarkType "contentinfo". | WCAG 1.3.1 InfoAndRelationships |
| LocalizedLandmarkTypeExcludesPrivateUnicodeCharacters | Error | The LocalizedControlType property must not contain any characters in the private Unicode range. | WCAG 1.3.1 InfoAndRelationships |
| LocalizedLandmarkTypeIsReasonableLength | Error | The LocalizedLandmarkType property must not be longer than 64 characters. | WCAG 1.3.1 InfoAndRelationships |
| LocalizedLandmarkTypeNotCustom | Error | The LandmarkType and LocalizedLandmarkType must not both be set to "custom". | WCAG 1.3.1 InfoAndRelationships |
| LocalizedLandmarkTypeNotEmpty | Error | An element with LandmarkType set must not have an empty LocalizedLandmarkType. | WCAG 1.3.1 InfoAndRelationships |
| LocalizedLandmarkTypeNotNull | Error | An element with LandmarkType set must not have a null LocalizedLandmarkType. | WCAG 1.3.1 InfoAndRelationships |
| LocalizedLandmarkTypeNotWhiteSpace | Error | The LocalizedLandmarkType property must not contain only white space. | WCAG 1.3.1 InfoAndRelationships |
| HelpTextNotEqualToName | Warning | The HelpText property of an element must not be the same as the element's Name property. | Section 508 502.3.1 ObjectInformation |
| HyperlinkNameShouldBeUnique | Warning | Links with different purposes and destinations should have different names. | WCAG 4.1.2 NameRoleValue |
| IsControlElementPropertyExists | Error | The given ControlType must have a non-null IsControlElement property. | Section 508 502.3.1 ObjectInformation |
| IsContentElementPropertyExists | Error | The given ControlType must have a non-null IsContentElement property. | Section 508 502.3.1 ObjectInformation |
| IsContentElementFalseOptional | NeedsReview | The recommended value of the IsContentElement property for the given control type is false. Please consider if this is an element that should be reported to an assistive technology user as content. | Section 508 502.3.1 ObjectInformation |
| IsContentElementTrueOptional | NeedsReview | The recommended value of the IsContentElement property for the given control type is true. Please consider if this is an element that should be reported to an assistive technology user as content. | Section 508 502.3.1 ObjectInformation |
| IsControlElementTrueOptional | NeedsReview | The recommended value of the IsControlElement property for the given control type is true. Please consider if this is an element that should be reported to an assistive technology user as a control. Note that almost all controls are required to have the IsControl Property set to true. | Section 508 502.3.1 ObjectInformation |
| IsControlElementTrueRequired | Error | The given ControlType must have the IsControlElement property set to true. | Section 508 502.3.1 ObjectInformation |
| IsControlElementTrueRequiredButtonWPF | Error | The given ControlType must have the IsControlElement property set to true. | Section 508 502.3.1 ObjectInformation |
| IsControlElementTrueRequiredTextInEditXAML | Error | The given ControlType must have the IsControlElement property set to true. | Section 508 502.3.1 ObjectInformation |
| IsKeyboardFocusableShouldBeTrue | Warning | The IsKeyboardFocusable property for the given element should be true based on its ControlType. | WCAG 2.1.1 Keyboard |
| IsKeyboardFocusableFalseButDisabled | NeedsReview | The IsKeyboardFocusable property is false for an element where it would normally be true. However, the IsEnabled property on the element is also false, so the value of IsKeyboardFocusable may be acceptable. | WCAG 2.1.1 Keyboard |
| IsKeyboardFocusableForListItemShouldBeTrue | Warning | The IsKeyboardFocusable property for the given list item is false, but the element has children that are focusable. The element should probably be focusable instead of its children. | WCAG 2.1.1 Keyboard |
| IsKeyboardFocusableFalseButOffscreen | NeedsReview | The IsKeyboardFocusable property for the given element is false for an element where it would normally be true. However, the IsOffscreen property on the element is true, so the value of IsKeyboardFocusable may be acceptable. | WCAG 2.1.1 Keyboard |
| IsKeyboardFocusableForCustomShouldBeTrue | Warning | The IsKeyboardFocusable property for a Custom element should be true when the element supports actionable patterns. | WCAG 2.1.1 Keyboard |
| IsKeyboardFocusableDescendantTextPattern | NeedsReview | The IsKeyboardFocusable property may be false when the given element supports the Text pattern and is the descendant of an element that also supports the Text pattern. Please consider if the given element should or should not be focusable. | WCAG 2.1.1 Keyboard |
| IsKeyboardFocusableOnEmptyContainer | NeedsReview | The IsKeyboardFocusable property should be true when you want an empty container to be discoverable by assistive technology users. IsKeyboardFocusable may be false when you want an empty container not to be discoverable by assistive technology users. | WCAG 2.1.1 Keyboard |
| IsKeyboardFocusableShouldBeFalse | Warning | The IsKeyboardFocusable property for the given element is expected to be false because of the element's ControlType. | WCAG 2.1.1 Keyboard |
| IsKeyboardFocusableTopLevelTextPattern | Warning | The IsKeyboardFocusable property should be true for an element that supports the Text pattern, is not a descendant of an element that supports the Text pattern, and which supports text selection. | WCAG 2.1.1 Keyboard |
| ItemTypeRecommended | NeedsReview | The ItemType property for the given element has no content, and the element has a child image. Please consider including an ItemType so that assistive technology users can obtain the information provided by the image. If this information is already provided in another way, the ItemType may not be necessary. | Section 508 502.3.1 ObjectInformation |
| LocalizedControlTypeReasonable | Warning | The LocalizedControlType should be reasonable based on the element's ControlTypeId. | Section 508 502.3.1 ObjectInformation |
| NameNotEmpty | Error | The Name property of a focusable element must not be an empty string. | Section 508 502.3.1 ObjectInformation |
| NameExcludesControlType | Error | The Name property must not include the element's control type. | Section 508 502.3.1 ObjectInformation |
| NameExcludesLocalizedControlType | Error | The Name must not include the same text as the LocalizedControlType. | Section 508 502.3.1 ObjectInformation |
| NameReasonableLength | Error | The Name property must not be longer than 512 characters. | Section 508 502.3.1 ObjectInformation |
| OrientationPropertyExists | Error | Controls that can be horizontal or vertical must support the Orientation property. | Section 508 502.3.1 ObjectInformation |
| ProgressBarRangeValue | Error | The RangeValue pattern of a progress bar must have specific Minimum, Maximum, and IsReadOnly values. | Section 508 502.3.1 ObjectInformation |
| ItemStatusExists | NeedsReview | The ItemStatus property for the given element should exist. | Section 508 502.3.1 ObjectInformation |
| NameNotNull | Error | The Name property of a focusable element must not be null. | Section 508 502.3.1 ObjectInformation |
| NameNotWhiteSpace | Error | The Name property must not contain only whitespace. | Section 508 502.3.1 ObjectInformation |
| NameNullButElementNotKeyboardFocusable | NeedsReview | The Name property for the given element is null, but the element isn't focusable. Please consider whether or not the element should have a name. | Section 508 502.3.1 ObjectInformation |
| NameEmptyButElementNotKeyboardFocusable | NeedsReview | The Name property for the given element is empty, but the element isn't focusable. Please consider whether or not the element should have a name. | Section 508 502.3.1 ObjectInformation |
| NameWithValidBoundingRectangle | Warning | An interactive element with a valid Name property is usually expected to have a valid BoundingRectangle that is not null and has area. | Section 508 502.3.1 ObjectInformation |
| NameOnOptionalType | NeedsReview | The Name property for the given element type is optional. | Section 508 502.3.1 ObjectInformation |
| NameNoSiblingsOfSameType | NeedsReview | The Name property of the given element may be null or empty if the element has no siblings of the same type. | Section 508 502.3.1 ObjectInformation |
| NameOnCustomWithParentWPFDataItem | NeedsReview | The Name property of a custom control may be empty if the parent is a WPF DataItem. | Section 508 502.3.1 ObjectInformation |
| NameIsInformative | Error | The Name property of an element should not contain class names like 'Microsoft..' or 'Windows..' as these are not usually informative. | Section 508 502.3.1 ObjectInformation |
| LocalizedControlTypeNotWhiteSpace | Error | The LocalizedControlType property must not contain only white space. | Section 508 502.3.1 ObjectInformation |
| LocalizedControlTypeNotEmpty | Error | The LocalizedControlType property must not be an empty string. | Section 508 502.3.1 ObjectInformation |
| LocalizedControlTypeNotNull | Error | The LocalizedControlType property must not be null. | Section 508 502.3.1 ObjectInformation |
| LocalizedControlTypeNotCustom | Error | The ControlType and LocalizedControlType must not both be set to "custom." | Section 508 502.3.1 ObjectInformation |
| LocalizedControlTypeNotCustomWPFGridCell | Error | The ControlType and LocalizedControlType must not both be set to "custom." | Section 508 502.3.1 ObjectInformation |
| ParentChildShouldNotHaveSameNameAndLocalizedControlType | Error | An element must not have the same Name and LocalizedControlType as its parent. | Section 508 502.3.1 ObjectInformation |
| SelectionPatternSelectionRequired | Error | An element of the given ControlType must have the IsSelectionRequired property set to true. | Section 508 502.3.10 AvailableActions |
| SelectionPatternSingleSelection | Error | An element of the given ControlType must not support multiple selection. | Section 508 502.3.10 AvailableActions |
| SelectionItemPatternSingleSelection | Error | An element whose parent supports single selection must not have selected siblings. | Section 508 502.3.10 AvailableActions |
| ListItemSiblingsUnique | Warning | The Name property of sibling list items should be unique. | WCAG 4.1.2 NameRoleValue |
| NameExcludesPrivateUnicodeCharacters | Error | The Name property must not contain any characters in the private Unicode range. | Section 508 502.3.1 ObjectInformation |
| HelpTextExcludesPrivateUnicodeCharacters | Error | The HelpText property must not contain any characters in the private Unicode range. | Section 508 502.3.1 ObjectInformation |
| LocalizedControlTypeExcludesPrivateUnicodeCharacters | Error | The LocalizedControlType property must not contain any characters in the private Unicode range. | Section 508 502.3.1 ObjectInformation |
| ClickablePointOnScreen | Error | An element's IsOffScreen property must be false when its clickable point is on-screen. | Section 508 502.3.1 ObjectInformation |
| ClickablePointOnScreenWPF | Error | An element's IsOffScreen property must be false when its clickable point is on-screen. | Section 508 502.3.1 ObjectInformation |
| ClickablePointOffScreen | Warning | An element's IsOffScreen property must be true when its clickable point is off-screen. | Section 508 502.3.1 ObjectInformation |
| FrameworkDoesNotSupportUIAutomation | Error | The framework used to build this application does not support UI Automation. | Section 508 502.3.1 ObjectInformation |
| EdgeBrowserHasBeenDeprecated | Error | The non-Chromium version of Microsoft Edge has been deprecated. | Section 508 502.3.1 ObjectInformation |
| ChromiumComponentsShouldUseWebScanner | Error | Chromium components should be scanned with a web-based scanner. | WCAG 1.3.1 InfoAndRelationships |
Severity descriptions
Error
The given element did not meet the success criteria of the rule evaluation. The problem likely can be addressed by the developer and the impact to users is significant.
Warning
The given element did not meet the success criteria of the rule evaluation, but the cause is known to be difficult for developers to fix (as in issues caused by the platform itself) or impact to users has been determined to be low.
NeedsReview
The rule highlights possible accessibility issues that need to be reviewed and verified by a human.