This sample demonstrates the grouping and icons supports of the ComboBox. Type a character in the ComboBox element or click on the drodown icon to choose an item from the categorized list/icons list.
The ComboBox allows to group the relevant items under a corresponding category by mapping the groupBy field, and allows to load the list items with icons.
The grouping sample illustrates how the vegetables are grouped based on its category.
The 2nd ComboBox is populated with icons that is rendered by mapping the iconCss field.
More information on the grouping feature configuration can be found in the documentation section.