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What’s New in Syncfusion ASP.NET Core UI Controls

ESSENTIAL STUDIO® 2025 VOLUME 1

What’s New in Syncfusion® ASP.NET Core UI Controls

With 2025 Volume 1, you can take advantage of a new SpeechToText control, real-time streaming responses in the AI AssistView, and enhanced PDF accessibility and compliance.

What’s New seaprator What’s New in Syncfusion® ASP.NET Core UI Controls

Common

New control

The SpeechToText control has been added to ASP.NET Core.

.NET 10 Preview 1 compatibility

Syncfusion ASP.NET Core controls are now compatible with .NET 10 Preview 1. This release includes support for the latest features and improvements in .NET 10 Preview 1, ensuring that our controls work seamlessly with the preview version.

Discontinued support for .NET 6 and .NET 7

The Syncfusion ASP.NET Core controls library no longer supports .NET 6 and .NET 7. This decision is in alignment with Microsoft’s .NET support policy. For further details, please refer to the .NET support policy.

SpeechToText (preview)

The ASP.NET Core SpeechToText control provides seamless voice-to-text conversion in web applications. It features real-time transcription with interim results, multilingual recognition, customizable buttons and tooltips, and error handling, ensuring intuitive and accessible speech recognition.

Key features

  • Real-time transcription: Instantly captures spoken input and converts it into text, ensuring smooth speech recognition.
  • Interim results: Provides partial transcriptions as the user speaks, offering dynamic real-time experience before finalizing the text.
  • Multilingual recognition: Supports multiple languages allowing users to transcribe speech in their preferred language.
  • Tooltips: Tooltips display information about start and stop actions, guiding users throughout the speech recognition process.
  • Appearance: Supports predefined styles and allows customization of content and icons to meet the application’s design and user preferences.

ASP.NET Core Speech To Text control

AI AssistView

Real-time streaming

The ASP.NET Core AI AssistView now supports streaming, enabling dynamic updates of the prompt responses as chunks. Users can receive the response once generated, reducing delays.

ASP.NET Core AI AssistView

Charts

Tooltip based on closest point

This feature allows users to display a tooltip that provides information about the data point closest to the cursor.

ASP.NET Core Chart Closest Tooltip

Total stacked values

This feature allows users to display the cumulative total for stacked chart data directly through data labels, improving the clarity and readability of stacked charts.

ASP.NET Core Chart Closest Tooltip

Scrollbar position

Users can now place horizontal and vertical scrollbars at the top, bottom, left, or right of the chart.

ASP.NET Core Chart scrollbar position

Highlighting data range with crosshair

When the crosshair is displayed, users can highlight the entire range of the corresponding category’s data points for better visibility.

ASP.NET Core Chart crosshair highlight

Corner radius for individual data points

Users can now customize the corner radius of individual data points in a rectangle-shaped series using an event triggered when rendering the points, improving the chart’s appearance.

ASP.NET Core Chart Corner radius

Vertical axis label wrap

Users can now wrap the vertical axis label based on the maximum label width for better readability.

ASP.NET Core Chart Corner radius

Funnel mode

Chart now supports the trapezoidal funnel chart, where each stage is represented as a trapezoid instead of a triangle.

ASP.NET Core Chart vertical axis label wrap

Customizing the exported Excel document

Users can now customize the exported Excel document using an event triggered before the chart data is exported to an Excel file.

Chat UI

Improved navigation to messages and focus methods

The ASP.NET Core Chat UI control now offers improved message navigation and interaction features for a more efficient user experience. Users can quickly locate specific messages using their unique IDs, effortlessly scroll to relevant conversations, and set focus on the dynamic input.

ASP.NET Core Chat UI

Chips

Drag and drop

This feature enables easy reordering of chips by dragging and dropping them within the same container or across different containers.

ASP.NET Core Chips drag and drop

DateTime Picker

Flexible date and time format parsing

The Syncfusion® ASP.NET Core DatePicker and DateTime Picker now support multiple input formats, simplifying date and time entry. This enhancement helps prioritize user-defined formats and ensure accurate parsing.

Flexible date and time format parsing in ASP.NET Core DateTime Picker

Diagram

Enhanced connector routing algorithm

This feature ensures that connectors adjust dynamically to avoid overlapping with neighboring connectors, maintaining a clear and organized diagram. By automatically updating the connector geometry, it eliminates visual clutter and enhances the readability of connection paths, resulting in a more structured and comprehensible diagram.

Creating a 16-bit adder circuit using the Avoid Connector Overlapping option to prevent connectors from overlapping with each other

Word Processor

Preserve hidden text

This feature ensures that hidden text in Word documents is preserved, maintaining its integrity when a document is opened and saved using the Word Processor component.

API for batch editing operations

The Word Processor has new API support for beginning and ending batch editing operations. This enhancement enables editing tasks to be executed programmatically without pagination throughout the batch process. Pagination is only applied once the batch editing is finalized, resulting in improved performance.

Excel Library

Excel-to-PDF and image conversion enhancement

The Excel-to-PDF and image conversion processes now accurately preserve EMF+ and EMF Dual images, ensuring high-quality output. These vector-based images are retained with clarity, making them ideal for use in manuals, reports, and other professional documentation.

Excel-to-PDF and image conversion enhancement

Performance improvements

The Syncfusion® Excel Library is now significantly faster when creating, reading, and saving Excel workbooks. The latest optimizations have improved processing speed across various data types, making operations on large datasets more efficient.

Performance gains (150 rows × 10,000 columns)

  • Text: 60% faster
  • DateTime: 50% faster
  • Number: 60% faster
  • Boolean: 43% faster
  • Formula: 90% faster

DataGrid

Column chooser with template support

The column chooser now includes template support, allowing users to render customized views in its header, content, and footer. Users can thus design the column chooser’s appearance. Additionally, users can enable or disable the the column chooser’s default search functionality, giving them more control over their filtering experience.

ASP.NET Core DataGrid column chooser

Enhanced filtering with ‘in’ and ‘not in’ operators

The filtering functionality has been enhanced with support for the in and not in filter operators. These operators allow users to filter records based on multiple matching or non-matching values within the same column, providing more flexibility in data filtering.

ASP.NET Core DataGrid in and not in filtering

Mention

Leading space configuration

In the ASP.NET Core Mention component, users can now type the mention character continuously without needing a leading space to activate the mention pop-up.

Leading space configuration in ASP.NET Core Mention control

PDF Viewer

Text search improvement

We have enhanced the text search functionality in the PDF Viewer so that it delivers faster and more accurate search results within PDF documents. The search speed is 90% faster for documents of up to 1,000 pages and the upgraded accuracy significantly reduces errors, providing reliable and swift retrieval of critical information.

PDF Library

PDF/UA-2 accessibility standard

PDF documents can now be created in compliance with the PDF/UA-2 accessibility standard, ensuring they meet the latest accessibility requirements. This enhancement improves usability for assistive technologies, making PDFs more accessible to all users.

PDF/UA-2 accessibility standard

Well-tagged PDF for improved accessibility

Generated PDFs now feature well-structured and properly tagged content, enhancing accessibility and compliance with industry standards. This improves navigation and content interpretation for users relying on assistive technologies.

Well-tagged PDF

Support for ZUGFeRD 2.3.2

The PDF Library now supports the ZUGFeRD 2.3.2 standard, enabling seamless creation and processing of electronic invoices. This feature integrates both human-readable and machine-readable data, ensuring compatibility with e-invoicing systems and regulatory compliance.

ZUGFeRD 2.3.2

Custom role mapping for accessibility

Users can now define custom role mappings for tagged elements in PDFs, offering greater flexibility in document accessibility. This allows tag roles to be customized to better align with specific accessibility requirements and document structures.

Custom role-map support in PDF accessibility

Hatch brush support in PDF graphics

This functionality introduces hatch brush patterns in PDF graphics, allowing users to fill shapes, text, and other graphical elements with customizable hatch patterns. It enhances the visual presentation of PDF content and provides design flexibility.

Hatch brush support in PDF

Restrict HTTP requests when converting HTML to PDF

This security enhancement allows users to restrict HTTP requests during the HTML-to-PDF conversion process. By blocking external resource access, it ensures greater control over data security, preventing unauthorized content retrieval and enhancing privacy.

Pivot Table

Classic layout export

The pivot table now supports exporting data in the classic (tabular) layout format to PDF, Excel, and CSV files using the built-in client-side export functionality. This enhancement enables users to generate and export pivot table data in a structured, table-style format, enhancing readability for further analysis and sharing.

PowerPoint Library

PowerPoint-to-PDF and image conversion enhancements

Preserve shapes as PDF form fields

The PowerPoint Library now includes a setting to convert shapes into editable PDF text form fields during PowerPoint-to-PDF conversion. This allows users to generate interactive PDFs for surveys, applications, and feedback forms, enabling digital form-filling.

PowerPoint-to-PDF

EMF+ and EMF+ Dual preservation 

EMF+ and EMF+ Dual images are now accurately preserved during PowerPoint-to-PDF and image conversions. Presentation files with these vector-based images can be converted to PDFs while maintaining clarity, ensuring accurate representation in manuals and reports. 

Scheduler

Prevent overlapping appointments

The ASP.NET Core Scheduler component now includes a feature to prevent overlapping appointments, ensuring a conflict-free and efficient scheduling experience. This enhancement helps maintain a clear and organized calendar view. You can explore a demonstration of this feature here.

Prevent overlapping appointments in ASP.NET Core Scheduler component.

Word Library

Create, modify, and remove SmartArt graphics

The .NET Word Library now allows you to programmatically create, edit, and remove SmartArt graphics in Word documents, making it easy to generate process flows and structured documents.

  • Create – Programmatically insert 134 types of SmartArt, including hierarchical diagrams, process flows, cycle diagrams, and more, to visually represent information effectively.
  • Edit – Modify SmartArt by updating text, adding nodes, and applying formatting for better customization.
  • Remove – Remove specific nodes or entire SmartArt without affecting other document content, ensuring flexibility in automation.

SmartArt in Word document

Word-to-PDF and image conversion enhancements

SmartArt in Word-to-PDF and image conversion

With this feature, SmartArt graphics in Word documents are accurately converted to PDF or image formats while preserving their structure and appearance. This ensures clear communication in presentations and reports sharing across different devices.

SmartArt in Word to PDF

EMF+ and EMF+ Dual preservation 

The EMF+ and EMF+ Dual images are accurately preserved during Word-to-PDF and image conversions. Word documents with vector-based diagrams can be converted to PDFs while maintaining clarity, ensuring accurate representation in manuals and reports. 

Improved TXT to Word conversion

Improved the performance of converting large TXT files to Word documents, achieving 10x faster conversion for files with 100,000+ lines, enabling seamless processing of extensive text content.

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