Custom Content

RadCircularProgressBar supports setting a complex structure of elements to the ContentTemplate property to represent the value set for the Content property. The Content property is of type object and can hold a value of any type.

Setting the Content and ContentTemplate properties

• XAML

<telerik:RadCircularProgressBar Name="circularProgressBar"  
                                Value="75" 
                                Maximum="100" 
                                Content="{Binding ElementName=circularProgressBar, Path=Value}"> 
    <telerik:RadCircularProgressBar.ContentTemplate> 
        <DataTemplate> 
            <StackPanel Orientation="Vertical"> 
                <TextBlock Text="{Binding Path=., StringFormat={}{0}%}" 
                   TextAlignment="Center" 
                   FontSize="16" 
                   FontWeight="SemiBold"  
                   Foreground="{Binding ElementName=circularProgressBar, Path=IndicatorFill}"/> 
                <TextBlock Text="Completed"  
                   FontSize="16" 
                   FontWeight="SemiBold"  
                   Foreground="{Binding ElementName=circularProgressBar, Path=IndicatorFill}"/> 
            </StackPanel> 
        </DataTemplate> 
    </telerik:RadCircularProgressBar.ContentTemplate> 
</telerik:RadCircularProgressBar> 

Custom content with indeterminate state

• XAML

<telerik:RadCircularProgressBar Name="circularProgressBar"  
                                Value="75" 
                                Maximum="100" 
                                IsIndeterminate="True" 
                                Content="In Progress"> 
    <telerik:RadCircularProgressBar.ContentTemplate> 
        <DataTemplate> 
            <TextBlock Text="{Binding}" 
                       FontSize="16"  
                       FontWeight="SemiBold" 
                       Foreground="{Binding ElementName=circularProgressBar, Path=IndicatorFill}"/> 
        </DataTemplate> 
    </telerik:RadCircularProgressBar.ContentTemplate> 
</telerik:RadCircularProgressBar> 

ContentStringFormat

RadCircularProgressBar allows you to set a string format to the ContentStringFormat property. This format will be applied to the Content property.

Custom ContentStringFormat

• XAML

<telerik:RadCircularProgressBar Name="circularProgressBar"  
                                Value="0.75" 
                                Content="{Binding ElementName=circularProgressBar, Path=Value}"  
                                ContentStringFormat="p2"/> 

Check this article for more information on the supported formats.