# Category | WPF Controls | DevExpress Documentation

Category rows do not display any data. They are used to group other rows that display the values of related fields. The PropertyGrid can display **categories** in the following ways:

- expandable/collapsible category rows;
- category tabs;

If the [PropertyGridControl.ShowCategories](/WPF/DevExpress.Xpf.PropertyGrid.PropertyGridControl.ShowCategories) property is set to **Tabbed**, you can display a custom glyph in the category header.

![PropertyGrid Visual Elements Catagories](/WPF/images/propertygrid-visual-elements-categories123544.png)

Refer to the following help topic for more information: [Property Categories](/WPF/117082/controls-and-libraries/property-grid/property-categories).

The table below lists the main properties affecting element behavior and appearance.

| Characteristics | Members |
| --- | --- |
| Visibility and Show Mode | [PropertyGridControl.ShowCategories](/WPF/DevExpress.Xpf.PropertyGrid.PropertyGridControl.ShowCategories) |
| Glyph Visibility and Appearance | [CategoryDefinition.Glyph](/WPF/DevExpress.Xpf.PropertyGrid.CategoryDefinition.Glyph), [CategoryDefinition.ColorizeGlyph](/WPF/DevExpress.Xpf.PropertyGrid.CategoryDefinition.ColorizeGlyph) |
| Expand and Collapse | [PropertyGridControl.Expand](/WPF/DevExpress.Xpf.PropertyGrid.PropertyGridControl.Expand%28System.String%29), [PropertyGridControl.Collapse](/WPF/DevExpress.Xpf.PropertyGrid.PropertyGridControl.Collapse%28System.String%29) |
| Expand Button | [PropertyGridControl.ExpandButtonsVisibility](/WPF/DevExpress.Xpf.PropertyGrid.PropertyGridControl.ExpandButtonsVisibility) |
| Expand on Source Changes | [ExpandCategoriesWhenSelectedObjectChanged](/WPF/DevExpress.Xpf.PropertyGrid.PropertyGridControl.ExpandCategoriesWhenSelectedObjectChanged) |
| Process the Expand Operation | [PropertyGridControl.CustomExpand](/WPF/DevExpress.Xpf.PropertyGrid.PropertyGridControl.CustomExpand) |