Switching Themes at Design-time

The UI for WPF suite provides a mechanism that allows you to change the application theme at design-time with a few clicks.

This mechanism is available only when the implicit styles theming is used. In order to use it you will need to reference the NoXaml version of the Telerik assemblies.

The following example demonstrates how the feature works in few easy steps.

  1. Select a Rad-control in the Visual Studio designer at design-time. This will display the Theme button at the designer's top right corner.

  2. Click on the Theme button. This will open the Themes window where you can choose a theme.

  3. Select a theme and click OK.

This will automatically add the new theme dll in the references of the project and merge the required resource dictionaries in the App.xaml resources.

Figure 1: The added theme assembly reference

Example 1: The merged theme resources

<Application.Resources> 
    <ResourceDictionary> 
        <ResourceDictionary.MergedDictionaries> 
            <ResourceDictionary Source="/Telerik.Windows.Themes.Green;component/Themes/System.Windows.xaml" /> 
            <ResourceDictionary Source="/Telerik.Windows.Themes.Green;component/Themes/Telerik.Windows.Controls.xaml" /> 
        </ResourceDictionary.MergedDictionaries> 
    </ResourceDictionary> 
</Application.Resources> 

You can change the theme also by using the Project Configuration Wizard.

Switching Themes at Design-time per control

With the R2 2019 version we introduced the option to change the theme per control at design-time.

This option is available only when the StyleManager is used. In order to use it you will need to reference the Xaml version of the Telerik assemblies.

The following example demonstrates how the feature works in few easy steps.

  1. Select a Rad-control in the Visual Studio designer at design-time. This will display a button on the right side of the control.

    RadButton Change Theme at Design Time

  2. Click the button and under Appearance, you can select the theme that you want to apply to the control. The StyleManager.Theme attached property will be set to the chosen theme. The result is demonstrated in Example 2. RadButton with the Office2016 theme

Example 2: RadButton with Office2016 theme applied

<telerik:RadButton Content="Change theme from designer" telerik:StyleManager.Theme="Office2016"   /> 

See Also

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