ConfigureBasemapStyleParameters.xaml

<UserControl x:Class="ArcGIS.WinUI.Samples.ConfigureBasemapStyleParameters.ConfigureBasemapStyleParameters"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:esriUI="using:Esri.ArcGISRuntime.UI.Controls">
    <Grid>
        <esriUI:MapView x:Name="MyMapView" />
        <Border Style="{StaticResource BorderStyle}">
            <StackPanel Margin="5">
                <TextBlock FontWeight="Bold" Text="Set language strategy:" />
                <RadioButton x:Name="GlobalRadioButton" Content="Global" />
                <RadioButton x:Name="LocalRadioButton"
                             Content="Local"
                             IsChecked="True" />
                <TextBlock FontWeight="Bold" Text="Set specific language:" />
                <ComboBox x:Name="LanguagePicker" HorizontalAlignment="Stretch">
                    <ComboBoxItem Content="None" IsSelected="True" />
                    <ComboBoxItem Content="Bulgarian" />
                    <ComboBoxItem Content="Greek" />
                    <ComboBoxItem Content="Turkish" />
                </ComboBox>
            </StackPanel>
        </Border>
    </Grid>
</UserControl>