ESSENTIAL STUDIO® 2025 VOLUME 3
What’s New in Syncfusion® ASP.NET Core UI Controls
With 2025 Volume 3, you can take advantage of 3x faster task loading in the Gantt Chart, checklists and quick table row and column insertion for the RTE, and connector segment editing preservation in the Diagram.
Charts
No data template
When the data source is completely unavailable, users can display custom HTML content, such as images or messages, to represent the absence of data in a chart visually.

Chat UI
Tagging users in messages
The Chat UI supports mentioning users within chat messages. Users can tag specific individuals during conversations using the @ symbol trigger with a suggestion pop-up displayed for selection.

Diagram
Preserving connector segment changes
This feature ensures that any manual adjustments to connector segments are preserved when the source or target nodes are moved. Additionally, these changes are now fully integrated with the undo/redo stack, allowing users to seamlessly revert or reapply connector segment modifications. This improves precision while editing complex workflows or custom layouts.

Render HTML/SVG template nodes in symbol palette
Users can define and render custom nodes using an HTML or SVG template directly within the symbol palette. It enables rich visual representations, including styled shapes, icons, or interactive elements.

Disable the tooltip in symbol palettes
Users can disable tooltip for shapes and connectors displayed in the symbol palette. It provides a cleaner UI experience, especially when tooltips are unnecessary or may interfere with user interactions

Gantt Chart
Optimized task loading and scrolling performance
Task loading with predecessor validation has been optimized, resulting in up to 3X faster load times. Scrolling performance has also been improved, providing a smoother and more responsive experience when working with large datasets.
DataGrid
Built-in row and column spanning
The DataGrid now supports the automatic merging of adjacent cells with identical values, both vertically and horizontally. When the same value appears in consecutive rows or columns, those cells are combined to create a more streamlined and readable layout. This enhancement improves data clarity and presentation.

Kanban Board
Column rearrangement
The drag-and-drop functionality allows users to easily rearrange columns within the board, enhancing board customization and workflow flexibility.

Pivot Table
Hierarchical field list in server-side engine
The field list’s TreeView can now be rendered with a hierarchical (folder-like) structure when using the server-side engine. This enhancement aligns the behavior of the server-side Pivot Table with the client-side implementation, offering a more consistent and intuitive user experience across platforms. Explore this feature in this demo.

Query Builder
Performance improvements
The Query Builder component has received performance enhancements across multiple rendering and interaction scenarios. These optimizations reduce loading times for large datasets and complex configurations, benefiting developers building applications with extensive filtering requirements. For example, rendering 1,000 lock groups or rules is now 24.94x faster, enabling smoother query construction in data-intensive applications.
| Scenario | Performance improvement |
|---|---|
| Rendering 10 instances | 1.82x faster |
| Rendering 100 instances | 3.82x faster |
| Rendering with 100 rules | 3.31x faster |
| Rendering with 1,000 rules | 2.57x faster |
| Rendering with 100 lock groups or rules | 2.01x faster |
| Rendering with 500 lock groups or rules | 1.77x faster |
| Rendering with 1,000 lock groups or rules | 24.94x faster |
| Rendering with 100 clone groups or rules | 1.54x faster |
| Rendering with 500 clone groups or rules | 1.54x faster |
| Rendering with 1,000 clone groups or rules | 2.29x faster |
| Enabling drag & drop | 1.25x faster |
| 100 rules with separate connectors | 2.25x faster |
| 1,000 rules with separate connectors | 1.33x faster |
Rich Text Editor
Checklist
This feature allows users to create checklists (to-do lists) directly within the Rich Text Editor. Users can easily add interactive checkbox items to their content, enabling task tracking and action item management within documents.

Quick insert for table rows and columns
This feature allows users to insert rows and columns into a table quickly. When hovering the mouse near the table edges, a “+” icon appears, enabling users to add rows or columns with a single click.

Enhance table properties
This feature allows users to customize the table border width and color. Users can easily adjust the thickness and appearance of table borders to match their document styling needs.

Source code view restructured
This feature improves alignment and formatting in the Rich Text Editor’s source code view. By applying consistent indentation and structure, it enhances the readability of the underlying HTML content, making it easier for users to review and edit code directly within the editor.

Drag and drop media files
This feature enhances media handling by allowing users to directly drag and drop video and audio files into the editor. It streamlines the content creation process, making it easier to insert multimedia without navigating through upload dialogs.

Stock Chart
No data template
When the data source is completely unavailable, users can display custom HTML content, such as images or messages, to represent the absence of data in a stock chart visually.

TreeGrid
Customize empty record message
The TreeGrid now supports customizing the content displayed when no records are available. Instead of the default message, alternative text or an image can be shown to better align with the interface.

Column chooser layout customization
The layout of the column chooser can now be modified, including its header, content area, and footer. This allows for a more consistent and visually aligned experience across your TreeGrid component.
