Stacked Area 100% Charts
RadChart has been deprecated since Q3 2014 and is marked as obsolete as of the 2026 Q2 SP1 (v2026.2.708) release. This is the last release that includes the RadChart component — its source code will be removed from the assembly in the next release. We strongly recommend using RadHtmlChart, Telerik's modern client-side charting component. To transition from RadChart to RadHtmlChart, refer to the following migration articles:
Explore the RadHtmlChart documentation and online demos to determine how it fits your development needs.
Stacked Areas 100% charts are a variation of Stacked Area charts that present values for trends as percentages, totaling to 100% for each category
To create a Vertical Stacked Area 100% Chart set the SeriesOrientationproperty to Vertical. Set the RadChart DefaultType property or ChartSeries.Type to StackedArea100.
To create a Horizontal Stacked Area 100% Chart set the SeriesOrientationproperty to Horizontal. Set the RadChart DefaultType property or ChartSeries.Type to StackedArea100.
To display the label values as percentages, change the DefaultLabelValue for each chart series from "#Y" (the numeric value for each data point) to "#%" (the percentage of each data point to the category).