Customizations in .NET MAUI BadgeView

If you don't want to use a predefined Badge type and need to customize the text inside the Badge indicator, use the BadgeText(string) property.

<telerik:RadBadgeView BadgeText="Badge Text">
    <telerik:RadBadgeView.Content>
        <telerik:RadBorder WidthRequest="80"
                                     HeightRequest="80"
                                     BorderThickness="1"
                                     BorderColor="LightGray">
            <Label Text="Telerik Badge View for MAUI"
                   FontSize="14"
                   VerticalTextAlignment="Center"
                   HorizontalTextAlignment="Center"/>
        </telerik:RadBorder>
    </telerik:RadBadgeView.Content>
</telerik:RadBadgeView>

The following image shows the final result.

ControlTemplate

The BadgeView supports a default ControlTemplate which you can customize.

To override the default control template, you need to set an implicit style with TargetType="telerik:Badge".

Use the Default ControlTemplate

To use the default ControlTemplate:

1. Set the default ControlTemplate in the page resources:

<Style TargetType="telerik:Badge">
    <Setter Property="ControlTemplate">
        <Setter.Value>
            <ControlTemplate>
                <!-- you can change the control template in order to customize the bage default look  -->
                <telerik:RadBorder BorderThickness="{TemplateBinding BorderThickness}"
                                   BorderColor="{TemplateBinding BorderColor}"
                                   CornerRadius="{TemplateBinding CornerRadius}"
                                   BackgroundColor="{TemplateBinding BackgroundColor}"
                                   MinimumHeightRequest="{TemplateBinding MinimumHeightRequest}"
                                   MinimumWidthRequest="{TemplateBinding MinimumWidthRequest}">
                    <Label x:Name="PART_BadgeContent"
                           Text="{TemplateBinding Text}" 
                           TextColor="{TemplateBinding TextColor}"
                           Margin="{TemplateBinding TextMargin}"
                           FontSize="{TemplateBinding FontSize}"
                           FontFamily="{TemplateBinding FontFamily}"
                           FontAttributes="{TemplateBinding FontAttributes}"
                           HorizontalTextAlignment="Center"
                           VerticalTextAlignment="Center" />
                </telerik:RadBorder>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

2. The following snippet shows the BadgeView definition in XAML:

<telerik:RadBadgeView VerticalOptions="Start"
                                HorizontalOptions="Start">
    <telerik:RadBadgeView.Content>
        <BoxView BackgroundColor="LightGray"
                 VerticalOptions="Center"
                 WidthRequest="80"
                 HeightRequest="80"
                 HorizontalOptions="Center"/>
    </telerik:RadBadgeView.Content>
</telerik:RadBadgeView>

3. Add the telerik namespace:

xmlns:telerik="http://schemas.telerik.com/2022/xaml/maui"

The following image shows the final result.

Use a Custom ControlTemplate

To customize the ControlTemplate:

1. Define the custom ControlTemplate in the page resources:

<Style TargetType="telerik:Badge">
    <Setter Property="ControlTemplate">
        <Setter.Value>
            <ControlTemplate>
                <!-- you can change the control template in order to customize the bage default look  -->
                <telerik:RadBorder HeightRequest="30"
                                   WidthRequest="60"
                                   BackgroundColor="#0DA6FF"
                                   CornerRadius="15">
                    <Grid ColumnDefinitions="Auto, Auto" 
                          ColumnSpacing="0"
                          HorizontalOptions="Center">
                        <Label Text="&#xE809;"
                               TextColor="White"
                               VerticalOptions="Center"
                               FontFamily="TelerikFont"/>
                        <Label Text="234"
                               VerticalOptions="Center"
                               Grid.Column="1"
                               TextColor="White"/>
                    </Grid>
                </telerik:RadBorder>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

2. The following snippet shows the BadgeView definition in XAML:

<telerik:RadBadgeView VerticalOptions="Start"
                                HorizontalOptions="Start">
    <telerik:RadBadgeView.Content>
        <BoxView BackgroundColor="LightGray"
                 VerticalOptions="Center"
                 HorizontalOptions="Center"
                 WidthRequest="80"
                 HeightRequest="80"/>
    </telerik:RadBadgeView.Content>
</telerik:RadBadgeView>

3. Add the following namespace:

xmlns:telerik="http://schemas.telerik.com/2022/xaml/maui"

The following image shows the final result.

For a runnable example with the BadgeView ControlTemplate scenario, see the SDKBrowser Demo Application and go to BadgeView > Features.

See Also

• Badge Position and Alignment
• Badge Animation
• Badge Types