[Expand]General Information
[Collapse]WinForms Controls
  Prerequisites
 [Expand]What's Installed
 [Expand]Build an Application
 [Collapse]Controls and Libraries
  [Expand]Forms and User Controls
  [Expand]Messages, Notifications, and Dialogs
  [Expand]Editors and Simple Controls
  [Expand]Ribbon, Bars and Menu
  [Expand]Application UI Manager
  [Expand]Docking Library
  [Collapse]Data Grid
   [Expand]Get Started With Data Grid and Views
   [Expand]Data Binding
    Unbound Columns
   [Expand]Views
   [Expand]Data Editing and Validation
   [Expand]Grouping
   [Expand]Sorting
   [Expand]Filter and Search
   [Expand]Summaries
   [Expand]Focus and Selection Handling
    Format Cell Values
   [Expand]Master-Detail Relationships
   [Expand]Asynchronous Image Load
   [Expand]Export and Printing
   [Expand]Appearance and Conditional Formatting
    Split Presentation
    Row Preview Sections
   [Expand]Scrolling
   [Expand]Batch Modifications
    Hit Information
    Hints
    Popup Menus
   [Expand]Save and Restore Layout
   [Collapse]Visual Elements
    [Expand]Grid Control Elements
    [Expand]View Common Elements
    [Collapse]Grid View Elements
      Auto Filter Row
      Column
      Column Header
      Column Header Context Menu
      Column Header Image
      Column Header Panel
      Customization Form
      Data Row
      Empty Space
      Filter Button
      Fixed Panel Divider
      Footer Cell
      Footer Context Menu
      Group Expand Button
      Group Footer
      Group Panel
      Group Panel Context Menu
      Group Row
      Group Row Check Box Selector
      Header Panel Button
      Preview Section
      Row Cell
      Row Indicator Panel
      Row Separator
      Sort Glyph
      View Footer
    [Expand]Card View Elements
    [Expand]Layout View Elements
    [Expand]Banded Grid View Elements
    [Expand]Master-Detail Mode Related Elements
   [Expand]Design-Time Features
   [Expand]Examples
   [Expand]End-User Capabilities
    Included Components
  [Expand]Vertical Grid
  [Expand]Property Grid
  [Expand]Pivot Grid
  [Expand]Member Tables
  [Expand]Tree List
  [Expand]Chart Control
  [Expand]Diagrams
  [Expand]Gauges
  [Expand]Map Control
  [Expand]Scheduler
  [Expand]Spreadsheet
  [Expand]Rich Text Editor
  [Expand]Spell Checker
  [Expand]Form Layout Managers
  [Expand]Navigation Controls
  [Expand]Printing-Exporting
  [Expand]PDF Viewer
   Reporting
  [Expand]Snap
  [Expand]TreeMap Control
  [Expand]Sunburst Control
 [Expand]Common Features
  Get More Help
 [Expand]API Reference
[Expand]ASP.NET Controls and MVC Extensions
[Expand]ASP.NET Bootstrap Controls
[Expand]ASP.NET Core Bootstrap Controls
[Expand]WPF Controls
[Expand]Xamarin Controls
[Expand]Windows 10 App Controls
[Expand]Office File API
[Expand]Reporting
[Expand]Report and Dashboard Server
[Expand]Dashboard
[Expand]eXpressApp Framework
[Expand]eXpress Persistent Objects
[Expand]CodeRush
[Expand]CodeRush Classic
[Expand]Cross-Platform Core Libraries
[Expand]Tools and Utilities
 End-User Documentation
WinForms Controls > Controls and Libraries > Data Grid > Visual Elements > Grid View Elements > Group Expand Button
View this topic on docs.devexpress.com (Learn more)

Group Expand Button

Group expand buttons enable end-users to expand or collapse group rows.

 

 

The table below lists the main properties affecting element appearance.

Appearance

The GridViewAppearances.GroupButton property.

Note: the appearance settings are not in effect if the View is painted using a Windows XP theme (see the BaseView.PaintStyleName property).

Visibility

The GridOptionsView.ShowGroupExpandCollapseButtons property.

Custom Draw Event

The GridView.CustomDrawGroupRow event.

Expanded See Also

Grouping
Working with Groups in Code
Working with Groups in Code
Custom Painting Basics
Elements that Can Be Custom Painted
Custom Painting Scenarios
Is this topic helpful?​​​​​​​
Copyright (c) 1998-2019 Developer Express Inc. All rights reserved.