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   [Expand]Collection Class
   [Expand]CollectionItemEventArgs Class
    CollectionItemEventHandler Delegate
   [Expand]ComponentCollectionItem Class
   [Expand]ICollectionItem Interface
    LinkSelectionModeType Enumeration
   [Expand]NavBarAppearances Class
   [Expand]NavBarCalcGroupClientHeightEventArgs Class
    NavBarCalcGroupClientHeightEventHandler Delegate
   [Expand]NavBarCalcHintSizeEventArgs Class
    NavBarCalcHintSizeEventHandler Delegate
   [Expand]NavBarControl Class
   [Expand]NavBarCustomDrawHintEventArgs Class
    NavBarCustomDrawHintEventHandler Delegate
   [Expand]NavBarCustomHintEventArgs Class
    NavBarDragDrop Enumeration
   [Expand]NavBarGetHintEventArgs Class
    NavBarGetHintEventHandler Delegate
   [Collapse]NavBarGroup Class
     NavBarGroup Members
    [Expand]NavBarGroup Constructor
    [Expand]NavBarGroup Properties
    [Expand]NavBarGroup Events
    [Expand]NavBarGroup Methods
   [Expand]NavBarGroupControlContainer Class
   [Expand]NavBarGroupEventArgs Class
    NavBarGroupEventHandler Delegate
    NavBarGroupStyle Enumeration
   [Expand]NavBarHitInfo Class
    NavBarHitTest Enumeration
    NavBarImage Enumeration
   [Expand]NavBarItem Class
   [Expand]NavBarItemLink Class
   [Expand]NavBarLayoutOptions Class
   [Expand]NavBarLinkEventArgs Class
    NavBarLinkEventHandler Delegate
    NavBarState Enumeration
    NavBarStringId Enumeration
    NavBarViewKind Enumeration
   [Expand]NavElement Class
   [Expand]NavGroupCollection Class
   [Expand]NavItemCollection Class
   [Expand]NavLinkCollection Class
    NavPaneState Enumeration
   [Expand]NavReadOnlyLinkCollection Class
   [Expand]OptionsNavPane Class
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 End-User Documentation

NavBarGroup Class

A group within a NavBarControl control.

Namespace:DevExpress.XtraNavBar
Assembly:DevExpress.XtraNavBar.v17.1.dll

Expanded Syntax

Expanded Remarks

A NavBarControl consists of one or more NavBarGroup objects which visually represent command containers. The following image shows a NavBarControl consisting of two groups (Local and News):

To add a command to a group, a specific NavBarItem must be added to the ItemLinks collection. When an item is added to a group, a NavBarItemLink is automatically created that refers to the current item. The created link is added to the group instead of the item itself. This approach allows you to have links to the same NavBar item within multiple groups.

Links within a group can be displayed using large or small images, with or without text. Use the GroupStyle property to customize the link display mode.

You can display a custom control within a group. To do this, set the GroupStyle property to ControlContainer. This automatically creates a NavBarGroupControlContainer control and displays it within the specified group. Then, you can place any controls onto the container and these will be displayed when the group is expanded. See NavBarGroupControlContainer to learn more.

To access and modify the collection of groups within a NavBarControl, use the NavBarControl.Groups property. Properties provided by the NavBarGroup object give you the ability to control the behavior of the group and its associated links.

A group can be either expanded or collapsed. Specific paint views allow only a single group to be expanded at one time, while in other paint styles, it's possible to have multiple expanded groups simultaneously. To control the expansion status, use the Expanded property.

Expanded Example

Show Me

A complete sample project is available in the DevExpress Code Examples database at http://www.devexpress.com/example=E5096.

This example shows how to create a NavBarControl in code.

The NavBarControl will have two groups ('Charts' and 'Settings') with items. Item link selection is enabled by setting the LinkSelectionMode property to LinkSelectionModeType.OneInGroupAndAllowAutoSelect. To respond to a link selection, the SelectedLinkChanged event is handled.



In the OneInGroupAndAllowAutoSelect mode, each group can have a single selected link independent of other groups. When a group is activated and it has no selected link, the first link is auto-selected. At runtime, you will see that the SelectedLinkChanged event fires on group activation, while the LinkClicked event does not.



The example demonstrates two methods of assigning images to navbar items:

1) explicit assignment of Image objects to items (see the 'Charts' navbar group item initialization);

2) implicit assignment, using image indexes (see the 'Settings' navbar group item initialization).

Expanded Inheritance Hierarchy

System.Object
    System.MarshalByRefObject
       System.ComponentModel.Component
          ComponentCollectionItem
             NavElement
                NavBarGroup

Expanded See Also

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