Feature request: Add the ability to set the base series of RadzenAreaSeries #1746

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opened 2026-01-29 17:58:00 +00:00 by claunia · 0 comments
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Originally created by @coder-johnz on GitHub (Apr 30, 2025).

Is your feature request related to a problem? Please describe.
RadzenAreaSeries draw area between line path and CategoryAxis. However, if there are multi AreaSeries, the bottom area color will overlay.
Like the demo, the area color of 2023 is not the actual color of 2023, it overlay with the color of 2024. Maybe we can set the base series of 2024 to 2023, and then just draw area between 2023 and 2024, not between CategoryAxis and 2024.
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Describe the solution you'd like
Add new properity BaseSeries to RadzenAreaSeries. If BaseSeries set value, then draw the area between BaseSeries and this RadzenAreaSeries. Otherwise, draw the area between CategoryAxis and this RadzenAreaSeries. The area color will be like RadzenStackedAreaSeries, but the value not sum.

Originally created by @coder-johnz on GitHub (Apr 30, 2025). **Is your feature request related to a problem? Please describe.** RadzenAreaSeries draw area between line path and CategoryAxis. However, if there are multi AreaSeries, the bottom area color will overlay. Like the [demo](https://blazor.radzen.com/area-chart?theme=material3), the area color of 2023 is not the actual color of 2023, it overlay with the color of 2024. Maybe we can set the base series of 2024 to 2023, and then just draw area between 2023 and 2024, not between CategoryAxis and 2024. ![Image](https://github.com/user-attachments/assets/00efa7ab-e536-4182-87e4-66cb83547c95) **Describe the solution you'd like** Add new properity BaseSeries to RadzenAreaSeries. If BaseSeries set value, then draw the area between BaseSeries and this RadzenAreaSeries. Otherwise, draw the area between CategoryAxis and this RadzenAreaSeries. The area color will be like RadzenStackedAreaSeries, but the value not sum.
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Reference: starred/radzen-blazor#1746