RibbonGalleryItemThemePaletteSelectorBehavior Class
Populates the associated RibbonGalleryBarItem with the available palettes and allows you to choose the application theme’s palette.
Namespace: DevExpress.Xpf.Ribbon
Assembly: DevExpress.Xpf.Ribbon.v23.2.dll
NuGet Package: DevExpress.Wpf.Ribbon
Declaration
[TargetType(typeof(RibbonGalleryBarItem))]
public class RibbonGalleryItemThemePaletteSelectorBehavior :
RibbonGalleryItemThemeSelectorBehaviorRemarks
Attach the RibbonGalleryItemThemePaletteSelectorBehavior to a RibbonGalleryBarItem in a RibbonControl to use it.
<dx:ThemedWindow
x:Class="ThemeHelperWPF.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:dx="http://schemas.devexpress.com/winfx/2008/xaml/core"
xmlns:dxr="http://schemas.devexpress.com/winfx/2008/xaml/ribbon"
xmlns:dxmvvm="http://schemas.devexpress.com/winfx/2008/xaml/mvvm"
Title="MainWindow" Height="350" Width="525"
WindowKind="Ribbon" >
<Grid>
<dxr:RibbonControl x:Name="RibbonControl" DockPanel.Dock="Top">
<dxr:RibbonDefaultPageCategory>
<dxr:RibbonPage Caption="Home"/>
<dxr:RibbonPage Caption="Settings" IsSelected="True">
<dxr:RibbonPageGroup Caption="Themes">
<dxr:RibbonGalleryBarItem>
<dxmvvm:Interaction.Behaviors>
<dxr:RibbonGalleryItemThemeSelectorBehavior ShowTouchThemes="False"/>
</dxmvvm:Interaction.Behaviors>
</dxr:RibbonGalleryBarItem>
<dxr:RibbonGalleryBarItem>
<dxmvvm:Interaction.Behaviors>
<dxr:RibbonGalleryItemThemePaletteSelectorBehavior />
</dxmvvm:Interaction.Behaviors>
</dxr:RibbonGalleryBarItem>
</dxr:RibbonPageGroup>
</dxr:RibbonPage>
</dxr:RibbonDefaultPageCategory>
</dxr:RibbonControl>
</Grid>
</dx:ThemedWindow>
Persist Theme Selection between Application Runs
You can save the application’s theme and palette to the configuration file and restore them on the next application run.
To save an applied theme and palette, use the static ApplicationThemeHelper.SaveApplicationThemeName method to save the theme name specified in the static ApplicationThemeHelper.ApplicationThemeName property:
private void Application_Exit(object sender, StartupEventArgs e) {
ApplicationThemeHelper.SaveApplicationThemeName();
}
Call the static ApplicationThemeHelper.UpdateApplicationThemeName method to retrieve the theme name from the configuration file and apply it to your application:
private void Application_Startup(object sender, ExitEventArgs e) {
ApplicationThemeHelper.UpdateApplicationThemeName();
}
Related GitHub Examples
The following code snippet (auto-collected from DevExpress Examples) contains a reference to the RibbonGalleryItemThemePaletteSelectorBehavior class.
Note
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