.NETのニュース

BlazorスプレッドシートにExcel風の自動入力を追加

12月 24, 2025

Syncfusion Essential Studio Spreadsheet Editor SDKは、数字、日付、カスタムリストの系列埋め込みを追加し、ユーザーのデータの拡張をさらに高速化

Syncfusion Essential Studio Spreadsheet Editor SDK is a library that lets developers embed spreadsheet functionality into web and desktop applications without requiring Microsoft Excel. It supports editing, formatting, and data analysis features such as cross sheet formula calculation, data binding to local and remote sources including JSON and REST, conditional cell styling, charts, data validation, worksheet protection, and workbook permissions. Available across frameworks including Blazor, React, Angular, Vue, JavaScript, ASP.NET Core and MVC, WPF, WinForms, and UWP, it helps teams deliver a familiar spreadsheet experience for use cases like reporting, budgeting, forecasting, and operational data entry directly within their applications.

The Syncfusion Essential Studio Spreadsheet Editor SDK 2025 Volume 4 update adds Blazor Autofill series support, allowing users to quickly extend numeric, date-based, and custom list patterns across cells in a predictable manner. This capability preserves existing cell formatting where applicable and provides flexible behavior for copying values versus generating sequences, reducing the need for custom implementation logic. As a result, developers can deliver more intuitive, Excel-like spreadsheet experiences with improved data consistency, reduced input errors, and faster interaction for end users.

To see a full list of what's new in Syncfusion Essential Studio Spreadsheet Editor SDK 2025 Volume 4 (32.1.19), see our release notes.

Syncfusion Essential Studio Spreadsheet Editor SDK is licensed per developer on a one year timed subscription basis, with runtime royalty free redistribution included when the subscription is current, and includes one year of unlimited technical support and updates. See our Syncfusion Essential Studio Spreadsheet Editor SDK licensing page for full details.

Learn more on our Syncfusion Essential Studio Spreadsheet Editor SDK product page.

非同期ロードで待ち時間を短縮

12月 23, 2025

Syncfusion Essential Studio DOCX Editor SDKは非同期ドキュメント読み込み機能を追加し、リモートデータアクセス時の操作をよりスムーズに

The Syncfusion DOCX Editor SDK provides a Microsoft Word inspired WYSIWYG editor that lets developers add Word document drafting, editing, and report generation to web and .NET desktop applications. It supports rich formatting with styles, tables, images, lists, and track changes, helping users create consistent, professional documents. With import and export support and a familiar interface, it reduces development effort and improves productivity for use cases like reporting, proposals, contracts, and document processes in business applications.

The Syncfusion Essential Studio DOCX Editor SDK 2025 Volume 4 update introduces asynchronous document loading for the Blazor DOCX Editor. This improves application responsiveness by preventing the user interface from blocking while documents are fetched and opened. By allowing document loading to occur in the background, developers can ensure the main thread remains available for user interactions, resulting in smoother navigation and more predictable behavior during network or file access delays. This enhancement helps create more responsive, user friendly applications, particularly when working with large documents or remote data sources.

To see a full list of what's new in Syncfusion Essential Studio DOCX Editor SDK 2025 Volume 4 (32.1.19), see our release notes.

Syncfusion Essential Studio DOCX Editor SDK is licensed per developer as a timed one year subscription that must be renewed to continue using the software. It is runtime royalty free for redistribution with a current subscription and includes one year of unlimited updates and 24/5 support with one business day responses. See our Syncfusion Essential Studio DOCX Editor SDK licensing page for full details.

Learn more on our Syncfusion Essential Studio DOCX Editor SDK product page.

WPFアプリに高度な表現編集を導入

12月 23, 2025

ComponentOne Studio Enterprise 2025 v2は、最新の.NET 10 WPF式エディターを提供し、ユーザーが正確なランタイム式を簡単に作成可能

ComponentOne Studio Enterprise is a comprehensive suite of .NET UI controls developed by MESCIUS (formerly GrapeCity) designed for building rich, interactive desktop, web, and mobile applications. It provides developers with a broad range of tools and components-including data grids, charts, reports, input controls, and advanced data visualization features-for platforms such as WinForms, WPF, ASP.NET Core, Blazor, WinUI, and .NET MAUI. The suite emphasizes performance, flexibility, and ease of integration, helping teams create consistent, feature-rich user experiences across multiple application types while maintaining a unified development approach.

The ComponentOne Studio Enterprise 2025 v2 update introduces a modern WPF ExpressionEditor that enables developers to integrate a complete runtime formula-building experience directly into their applications. It allows end users to create, edit, and validate logical expressions using familiar Visual Studio–style code completion, syntax highlighting, and real-time error reporting, while also providing a set of built-in operators, constants, and aggregate, logical, mathematical, and conversion functions. By offering both a lightweight expression text box and a full-featured formula panel, the update reduces the need for custom expression editors, shortens development time, and improves the reliability and usability of data-driven application logic.

To see a full list of what's new in 2025 v2, see our release notes.

ComponentOne Studio Enterprise is licensed per developer on a perpetual basis and includes a 12 month subscription. Priority Support is also available. See our ComponentOne Studio Enterprise licensing page for full details.

Learn more on our ComponentOne Studio Enterprise product page.

ComponentSourceとClever Componentsとの提携15周年記念

12月 23, 2025

ComponentSourceとClever Componentsは、2010年以来、開発者が開発者が信頼性の高いインターネット対応アプリケーションをより早く構築するために協力

ComponentSource and Clever Components have worked together for 15 years, supporting developers with a range of reliable Internet, networking, and communication components. This long-standing partnership has helped bring powerful development tools to a global audience through ComponentSource's trusted distribution platform.

Clever Components was founded by a team of experienced developers dedicated to creating easy-to-use Internet development components. Since the release of the first version of Clever Internet Suite in 2002, the company has steadily expanded its product portfolio, including the launch of a .NET edition in 2004. Today, Clever Components delivers high-quality RAD components for C#, VB.NET, Delphi, and C++Builder, enabling developers to rapidly implement advanced Internet, email, FTP, and networking functionality within their applications. Clever Components' products closely align with ComponentSource’s mission to provide developers with trusted, productivity-enhancing solutions.

Together, ComponentSource and Clever Components continue to help developers accelerate internet-enabled application development while reducing complexity and risk. By combining Clever Components’ proven, feature-rich toolsets with ComponentSource's reach, licensing options, and customer support, the partnership remains well positioned to support developers' evolving needs and drive continued success in the years ahead.

Learn more about Clever Components.

WinFormsアプリでPDF注釈を有効化

12月 19, 2025

注釈ツール内蔵のPDFビューアにより、ユーザーは元の内容を改変せずに文書をレビュー、コメント、共同作業が可能

PDF annotation in .NET WinForms PDF viewer components refers to the ability to add visual and textual markup directly onto PDF documents without altering the original content. These tools allow users to draw shapes, highlight text, insert comments, and place notes within the viewing interface, supporting workflows such as document review, feedback, and approval. This functionality improves collaboration and clarity in document handling, making it well-suited for document processing tasks in WinForms applications.

Common features include:

Freehand Draw (Ink Annotation) allows users to sketch, underline, or handwrite directly on the page using a mouse, stylus, or touch input, making it ideal for markups and signatures.
Lines provide a simple way to connect points or emphasize linear elements within a document, often with configurable thickness, color, and opacity.
Rectangles enable users to highlight or frame areas of interest, supporting both outlined and filled styles for visual emphasis.
Ellipses offer a similar highlighting function to rectangles but with a rounded shape, useful for circling content or marking irregular regions.
Arrows are commonly used to direct attention to specific content, combining line styling with arrowheads to clearly indicate focus or flow.
Sticky Note annotations allow users to attach comments to precise locations in the document, typically displayed as icons that reveal text on interaction.
Free Text enables direct placement of typed text onto the page with control over font, size, color, and alignment, supporting clear, visible commentary without pop-ups.