Essential Studio® for Chart SDK - v35.1.37 Release Notes

v35.1.37
September 29, 2026
Test Results: 52051 Success , 0 Failure

Web 3D Charts

Features

Applies To: React, Angular, JavaScript, TypeScript, Vue, ASP.NET Core, and ASP.NET MVC.

  • #I796801 - Smart Label support: Added smart label support for StackingColumn and StackingBar series in the 3D Chart control. This feature automatically relocates overlapping data labels and supports smart label customization through the smartLabelSettings property, including background, border, connector line, pointer shape, and offset settings.
Platform API
React Link
Angular Link
JavaScript Link
TypeScript Link
Vue Link
ASP.NET Core Link
ASP.NET MVC Link
  • #I862185 - Added support for accessing the underlying data object of a specific series point through the tooltipRender event arguments using the rawData property.
Platform tooltipRender API rawData API
React Link Link
Angular Link Link
JavaScript Link Link
TypeScript Link Link
Vue Link Link

Web 3D Circular Charts

Features

Applies To: React, Angular, JavaScript, TypeScript, Vue, ASP.NET Core, and ASP.NET MVC.

  • #I862185 - Added support for accessing the underlying data object of a specific series point through the tooltipRender event arguments using the rawData property.
Platform tooltipRender API rawData API
React Link Link
Angular Link Link
JavaScript Link Link
TypeScript Link Link
Vue Link Link

Blazor Accumulation Charts

Features

  • Nested doughnut: Added support for multiple pie series, enabling nested doughnut charts with concentric rings. This enhancement allows you to represent hierarchical or grouped data more effectively and compare multiple datasets within a single visualization. Explore demo

Web Accumulation Charts

Features

Applies To: React, Angular, JavaScript, TypeScript, Vue, ASP.NET Core, and ASP.NET MVC.

  • #I862185 - Added support for accessing the underlying data object of a specific series point through the tooltipRender event arguments using the rawData property.
Platform tooltipRender API rawData API
React Link Link
Angular Link Link
JavaScript Link Link
TypeScript Link Link
Vue Link Link

Web Charts

Features

Applies To: React, Angular, JavaScript, TypeScript, Vue, ASP.NET Core, and ASP.NET MVC.

  • Web Model Context Protocol (WebMCP): Added support for WebMCP, enabling AI models and agents to interact with files and folders through built-in tools. The beforeWebMcpToolExecute event allows users to inspect, modify, or cancel tool execution before it runs.
Platform API
React Link
Angular Link
JavaScript Link
TypeScript Link
Vue Link
ASP.NET Core Link
ASP.NET MVC Link
  • #I822390 - Smart Label support: Added smart label support for StackingColumn, StackingBar, StackingColumn100, and StackingBar100 series in the Chart control. This feature automatically relocates overlapping data labels and provides customization options through the smartLabelSettings property, including background, border, connector line, pointer shape, and offset settings.
Platform API
React Link
Angular Link
JavaScript Link
TypeScript Link
Vue Link
ASP.NET Core Link
ASP.NET MVC Link
  • #I862341 - LegendRender event: Enhanced the legendRender event by including the associated series in the event arguments. This improvement enables users to access the corresponding series directly from the legend item during rendering. It facilitates advanced customization scenarios such as modifying legend text, styling legend items based on series properties, and implementing custom rendering logic.
Platform API
React Link
Angular Link
JavaScript Link
TypeScript Link
Vue Link
ASP.NET Core Link
ASP.NET MVC Link
  • #I862185 - Added support for accessing the underlying data object of a specific series point through the tooltipRender event arguments using the rawData property.
Platform tooltipRender API rawData API
React Link Link
Angular Link Link
JavaScript Link Link
TypeScript Link Link
Vue Link Link

Bug Fixes

Applies To: React, Angular, JavaScript, TypeScript, Vue, ASP.NET Core, and ASP.NET MVC.

  • #I871749 - Resolved an exception that occurred when disabling the legend dynamically after rendering an empty chart and refreshing the series.
  • #I870812 - The scrollbar now renders correctly when enableRtl and enableZoom are enabled on the horizontal axis.
Platform enableRtl API enableZoom API
React Link Link
Angular Link Link
JavaScript Link Link
TypeScript Link Link
Vue Link Link
  • #I869843 - Added support for rendering stacking labels for zero values and null values treated as zero in StackingColumn charts.

.NET MAUI SfCartesianChart

Features

  • FB49487- Added Gradient support for line based series to apply smooth color transitions along series strokes using gradient brushes.

  • Provided Accessibility support to improve chart navigation and interaction through assistive technologies.

  • FB51124-Extended Trackball support to stacked column series with nearest point, group all points, and float all points display modes for flexible data inspection and comparison.

  • Added Legend title support to display a descriptive header for the chart legend using text or custom views, providing additional context for legend items.

  • FB59269- Introduced Annotation Z-order support through the ZIndex property, enabling precise control over annotation layering relative to chart series and other annotations.

  • Enabled Axis Range Style support to apply custom styling to labels, grid lines, and tick lines within specific axis ranges, helping emphasize important data regions and thresholds.

.NET MAUI SfCircularChart

Features

  • Provided Accessibility support to improve chart navigation and interaction through assistive technologies.

  • Added Legend title support to display a descriptive header for the chart legend using text or custom views, providing additional context for legend items.

.NET MAUI SfFunnelChart

Features

  • Provided Accessibility support to improve chart navigation and interaction through assistive technologies.

  • Added Legend title support to display a descriptive header for the chart legend using text or custom views, providing additional context for legend items.

.NET MAUI SfPolarChart

Features

  • Provided Accessibility support to improve chart navigation and interaction through assistive technologies.

  • Added Legend title support to display a descriptive header for the chart legend using text or custom views, providing additional context for legend items.

  • Enabled Axis Range Style support to apply custom styling to labels, grid lines, and tick lines within specific axis ranges, helping emphasize important data regions and thresholds.

.NET MAUI SfPyramidChart

Features

  • Provided Accessibility support to improve chart navigation and interaction through assistive technologies.

  • Added Legend title support to display a descriptive header for the chart legend using text or custom views, providing additional context for legend items.

Web StockChart

Features

Applies To: React, Angular, JavaScript, TypeScript, Vue, ASP.NET Core, and ASP.NET MVC.

  • Live Data Point: Added live update support in the Stock Chart control using the addPoint and setData methods. This feature allows users to add new data points in real time and update existing points dynamically, ensuring smooth visualization of continuously changing stock market data with improved performance and responsiveness.
Platform addPoint API setData API
React Link Link
Angular Link Link
JavaScript Link Link
TypeScript Link Link
Vue Link Link
ASP.NET Core Link Link
ASP.NET MVC Link Link
  • Performance for StockChart: Improved the initial rendering performance of the Stock Chart control for large data sets. Optimizations in series processing, point rendering, and chart initialization have reduced the rendering time for 500,000 data points from ~20 seconds to 3–4 seconds. This enhancement significantly improves chart loading speed, reduces UI latency, and ensures a more responsive experience when visualizing large-scale financial data.

Blazor Sunburst Chart preview

Features

The Sunburst Chart component visualizes multilevel hierarchical data as concentric rings, where the arc length of each segment encodes its value. Users can click a slice to drill down into its underlying levels, and built-in highlight and selection interactions make individual slices easy to emphasize.

Key features

  • Multilevel visualization: Hierarchical data is rendered as concentric rings, with arc length encoding each value.
  • Drill down: Click a slice to drill down into its underlying levels.
  • Highlight and selection: Built-in highlight and selection support.
  • Theming: Data labels, multilevel tooltips, title, subtitle, legend, and borders fully support themes.
  • Smart tooltip fill: The tooltip fill automatically follows the active theme, with a dark fallback when no theme is applied.

Explore demo

WPF SfChart

Features

  • Added Multi-level label rotation support, allowing multi-level axis labels to be rotated for improved readability and better space utilization.

  • Introduced XPS vector export support, enabling charts to be exported as high-quality vector documents for crisp printing and scalable viewing.

Test Results

Component Name Platform Test Cases Passed Failed Remarks
Charts Blazor 7716 7716 0 All Passed
Chart Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC) 8748 8748 0 All Passed
Charts WPF 2964 2964 0 All Passed
Chart Windows Forms 964 964 0 All Passed
3DChart Blazor 376 376 0 All Passed
3D Chart Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC) 326 326 0 All Passed
3D Circular Chart Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC) 466 466 0 All Passed
Circular Charts .NET MAUI 35 35 0 All Passed
Circular Chart Flutter 544 544 0 All Passed
StockChart Blazor 377 377 0 All Passed
Stock Chart Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC) 581 581 0 All Passed
Sunburst Chart WPF 185 185 0 All Passed
Sunburst Charts .NET MAUI 858 858 0 All Passed
Pivot Chart Windows Forms 124 124 0 All Passed
CircularGauge Blazor 1026 1026 0 All Passed
CircularGauge Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC) 532 532 0 All Passed
Circular Gauge WPF 305 305 0 All Passed
LinearGauge Blazor 802 802 0 All Passed
LinearGauge Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC) 428 428 0 All Passed
Linear Gauge WPF 27 27 0 All Passed
Linear Gauge WinUI 1184 1184 0 All Passed
Linear Gauge Windows Forms 58 58 0 All Passed
Lineaar Gauge .NET MAUI 668 668 0 All Passed
Linear gauge Flutter 1293 1293 0 All Passed
Radial Gauge WinUI 397 397 0 All Passed
Radial Gauge Windows Forms 89 89 0 All Passed
Radial Gauge .NET MAUI 583 583 0 All Passed
Radial Gauge Flutter 3124 3124 0 All Passed
Digital Gauge Windows Forms 7 7 0 All Passed
Digital Gauge .NET MAUI 108 108 0 All Passed
HeatMap Blazor 422 422 0 All Passed
HeatMap Chart Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC) 814 814 0 All Passed
Maps Blazor 1791 1791 0 All Passed
Maps Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC) 1399 1399 0 All Passed
Maps WPF 1679 1679 0 All Passed
Maps .NET MAUI 1835 1835 0 All Passed
Maps Flutter 427 427 0 All Passed
RangeNavigator Blazor 227 227 0 All Passed
RangeNavigator Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC) 140 140 0 All Passed
Range selector .NET MAUI 15 15 0 All Passed
Range selector Flutter 331 331 0 All Passed
SmithChart Blazor 263 263 0 All Passed
SmithChart Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC) 49 49 0 All Passed
Smith Chart WPF 976 976 0 All Passed
Sparkline Blazor 229 229 0 All Passed
Sparkline Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC) 58 58 0 All Passed
Spark Line Chart Flutter 128 128 0 All Passed
BarcodeGenerator Blazor 533 533 0 All Passed
Barcode WinUI 293 293 0 All Passed
Barcode Generator .NET MAUI 1763 1763 0 All Passed
Barcode Generator Flutter 522 522 0 All Passed
TreeMap Blazor 776 776 0 All Passed
Treemap Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC) 332 332 0 All Passed
TreeMap WPF 744 744 0 All Passed
TreeMap .NET MAUI 457 457 0 All Passed
Treemap Flutter 198 198 0 All Passed
Bulletchart Blazor 255 255 0 All Passed
Bullet Chart Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC) 169 169 0 All Passed
DashboardLayout Blazor 298 298 0 All Passed
Dashboard layout Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC) 33 33 0 All Passed