Radzen Blazor Chart pie series
A pie chart splits a whole into slices, with each slice sized by its share of the total. It works best for a few categories where you want to show proportion at a glance.
Showcase link
A real-world revenue breakdown that combines a custom color palette, gradient fills, rounded corners and a subtle segment gap.
Basic pie link
Bind a collection and set CategoryProperty and ValueProperty. Each value is converted to its share of the whole automatically.
Various radius link
Use the RadiusProperty to assign different radius values to each segment based on a data property. This provides visual differentiation through size variation.
Segment gap link
Set SegmentGap to separate adjacent segments by a uniform-width space that runs from the rim to the center, regardless of segment size.
Rounded corners link
Set CornerRadius to round the corners of each segment for a softer look.
Semi-circle link
Combine StartAngle and TotalAngle to draw a half pie - useful for gauge-style visuals.
Explode on hover link
Set ExplodeOffset to make segments move outward from the center when hovered, or use ExplodedProperty to keep a segment permanently exploded.
Custom colors link
Provide your own palette with Fills (and Strokes). Combine with FillMode to switch between solid and gradient fills.
Labels and legend link
Add RadzenSeriesDataLabels to print values on the segments and position the RadzenLegend. Set ShowTooltipOnLegend to surface tooltips from the legend too.
Playground link
Combine the settings above and see how they interact - fill mode, segment gap, corner radius, semi-circle, data labels and legend.
Frequently asked questions
When should I use a pie chart?
When you are showing parts of a single whole and there are only a few of them. With many slices, or when precise comparison matters, a bar or column chart is easier to read.
What data does a pie chart need?
One value per category; the chart converts each to its share of the total automatically. Bind your collection and set the value and category properties of the pie series.
Pie or donut?
They show the same thing. A donut leaves a hole in the middle, which gives you space for a total or label and can look cleaner with more slices.
Radzen Blazor Components, © 2018-2026 Radzen.
Source Code licensed under
MIT