New to Telerik UI for WPF? Start a free 30-day trial
Radiuses
Updated on Sep 15, 2025
RadCircularProgressBar allows you to change the radius of the track, the primary and the secondary progress indicator. To change the track's radius, set the TrackStartRadius and TrackEndRadius properties. To modify the radius of the progress indicators, set the IndicatorStartRadius and IndicatorEndRadius properties.
If you set the
IndicatorStartRadiusandIndicatorEndRadiusproperties, their values will modify the radius of both the primary and secondary progress indicator.
Changing the track and progress indicators radiuses
XAML
<telerik:RadCircularProgressBar Name="circularProgressBar"
Value="0.5"
SecondaryValue="0.75"
UseRoundedSegments="True"
IndicatorStartRadius="0.75"
IndicatorEndRadius="1"
TrackStartRadius="0.85"
TrackEndRadius="0.9"/>Changing the track and progress indicators radiuses in code
C#
RadCircularProgressBar radCircularProgressBar = new RadCircularProgressBar();
radCircularProgressBar.Value = 0.5;
radCircularProgressBar.SecondaryValue = 0.75;
radCircularProgressBar.UseRoundedSegments = true;
radCircularProgressBar.IndicatorStartRadius = 0.75;
radCircularProgressBar.IndicatorEndRadius = 1;
radCircularProgressBar.TrackStartRadius = 0.85;
radCircularProgressBar.TrackEndRadius = 0.9;