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Data Grid
- Overview
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Data Binding
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Paging and Scrolling
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Editing
-
Grouping
-
Filtering and Sorting
- Focused Row
-
Row Drag & Drop
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Selection
-
Columns
- State Persistence
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Appearance
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Templates
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Data Summaries
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Master-Detail
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Export to PDF
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Export to Excel
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Adaptability
- Keyboard Navigation
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Pivot Grid
- Overview
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Data Binding
-
Field Chooser
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Features
-
Export to Excel
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Tree List
- Overview
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Data Binding
- Sorting
- Paging
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Editing
- Node Drag & Drop
- Focused Row
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Selection
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Filtering
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Column Customization
- State Persistence
- Adaptability
- Keyboard Navigation
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Scheduler
- Overview
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Data Binding
-
Views
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Features
- Virtual Scrolling
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Grouping
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Customization
- Adaptability
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Html Editor
-
Chat
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Diagram
- Overview
-
Data Binding
-
Featured Shapes
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Custom Shapes
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Document Capabilities
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User Interaction
- UI Customization
- Adaptability
-
Charts
- Overview
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Data Binding
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Area Charts
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Bar Charts
- Bullet Charts
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Doughnut Charts
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Financial Charts
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Line Charts
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Pie Charts
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Point Charts
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Polar and Radar Charts
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Range Charts
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Sparkline Charts
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Tree Map
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Funnel and Pyramid Charts
- Sankey Chart
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Combinations
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More Features
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Export
-
Selection
-
Tooltips
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Zooming
-
-
Gantt
- Overview
-
Data
-
UI Customization
- Strip Lines
- Export to PDF
- Sorting
-
Filtering
-
Gauges
- Overview
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Data Binding
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Bar Gauge
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Circular Gauge
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Linear Gauge
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Navigation
- Overview
- Accordion
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Menu
- Multi View
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Drawer
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Tab Panel
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Tabs
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Toolbar
- Pagination
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Tree View
- Right-to-Left Support
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Layout
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Editors
- Overview
- Autocomplete
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Calendar
- Check Box
- Color Box
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Date Box
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Date Range Box
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Drop Down Box
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Number Box
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Select Box
- Switch
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Tag Box
- Text Area
- Text Box
- Validation
- Custom Text Editor Buttons
- Right-to-Left Support
- Editor Appearance Variants
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Forms and Multi-Purpose
- Overview
- Button Group
- Field Set
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Filter Builder
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Form
- Radio Group
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Range Selector
- Numeric Scale (Lightweight)
- Numeric Scale
- Date-Time Scale (Lightweight)
- Date-Time Scale
- Logarithmic Scale
- Discrete scale
- Custom Formatting
- Use Range Selection for Calculation
- Use Range Selection for Filtering
- Image on Background
- Chart on Background
- Customized Chart on Background
- Chart on Background with Series Template
- Range Slider
- Slider
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Sortable
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File Management
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File Manager
- Overview
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File System Types
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Customization
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File Uploader
-
-
Actions and Lists
- Overview
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Action Sheet
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Button
- Floating Action Button
- Drop Down Button
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Context Menu
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List
-
Lookup
-
Maps
- Overview
-
Map
-
Vector Map
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Dialogs and Notifications
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Localization
JavaScript/jQuery Select Box - Grouped Items
Data items in the JavaScript SelectBox's drop-down list can be organized in groups.
If the data source contains ungrouped data items, use the DataSource's group property to specify the data field to group by. This case is illustrated in this demo's first and third SelectBoxes.
If you have technical questions, please create a support ticket in the DevExpress Support Center.
The JavaScript SelectBox can also work with initially grouped data items. In this case, the data array should contain objects with the key and items fields:
let dataSource = [{
key: "Group 1", // Group caption
items: [ // Items in Group 1
{ /* ... */ },
{ /* ... */ }
]
}, {
key: "Group 2",
items: [
{ /* ... */ },
{ /* ... */ }
]
}];
If data objects are grouped but use other field names, implement the DataSource's map function to create key and items field mappings as in this demo's second JavaScript SelectBox.
Only one-level grouping is supported.
Regardless of the data source structure, enable the grouped property.
If the data source contains objects, specify the following JavaScript SelectBox properties:
-
valueExpr
A data field that contains unique values used to identify items. -
displayExpr
A data field whose values should be displayed in the drop-down list.
If you need to specify a custom template for group captions, use the groupTemplate property. In this demo, each caption contains an icon and a text string.