Category News

効率的なLINQプロジェクションでデータアクセスを最適化

2月 17, 2026
AutoMapperは、規約と検証を用いてオブジェクトマッピングを改善し、ボイラープレートコードの削減と.NET開発の加速を実現

AutoMapper by Lucky Penny Software is a convention-based object-to-object mapping library designed for Microsoft .NET developers. It improves the process of transforming data between objects, particularly when mapping complex domain models to simpler Data Transfer Objects (DTOs), using intelligent conventions and configuration options to minimize manual coding.

By eliminating repetitive boilerplate mapping code, AutoMapper helps developers build cleaner, more maintainable applications. It enforces consistent naming conventions, validates mappings at runtime, and optimizes LINQ projections for efficient data querying. This makes it especially valuable in layered architectures, API development, and enterprise applications where data transformation is frequent and complex. From startups to large organizations, teams use AutoMapper to reduce errors, accelerate development cycles, and focus on delivering business value rather than managing tedious object-mapping logic.

AutoMapper is licensed on an annual subscription basis per development team, with Standard (1–10 developers), Professional (11–50 developers), and Enterprise (unlimited developers) tiers. See our AutoMapper licensing page for full details.

For more information, visit our AutoMapper product page.

JavaScriptアプリでコラボレーションスプレッドシートを構築

2月 16, 2026
MESCIUS CodeClinicのライブウェビナーに参加して、SpreadJSのコラボレーションサーバーアドオンの体験を

SpreadJS is a complete enterprise JavaScript spreadsheet solution used to create financial reports and dashboards, budgeting and forecasting models, scientific, engineering, healthcare, education, science lab notebooks, and other similar JavaScript business applications. It leverages a high-speed calculation engine with over 500 Excel built-in functions in 19 languages to deliver true Excel-like spreadsheet experiences with zero dependencies on Excel and full support for React, Vue, Angular, and TypeScript.

On Thursday, February 26th at 11:00 AM EST, MESCIUS (formerly GrapeCity) will be presenting a CodeClinic Live Webinar highlighting the new Collaboration Server as a production-ready solution for real-time, multi-user spreadsheet editing in enterprise JavaScript applications. During this webinar, SpreadJS Product Manager Chris Bannon and Product Marketing Manager Mackenzie Albitz will take you through the following key takeaways:

  • How the SpreadJS Collaboration Framework enables low-latency, conflict-free editing in JavaScript applications.
  • The architecture behind the Sheets Collaboration Optional Add-On and how it converts workbook changes into synchronized operations.
  • How real-time presence, selections, and multi-user awareness are implemented.
  • How collaborative undo/redo works in concurrent editing scenarios.
  • Permission models for balancing collaboration with control in enterprise apps.

Register for the Live Webinar today and mark your calendar for February 26th.

SpreadJS is licensed per developer and includes 1 Year Maintenance (major and minor version releases and unlimited support phone calls). SpreadJS requires an Annual or Perpetual Deployment License. The optional Add-ons are available at an additional cost, and require a SpreadJS license. See our SpreadJS licensing page for full details.

For more information, visit our SpreadJS product page.

JavaScriptレポートに構造化ナビゲーションを追加

2月 16, 2026
JavaScriptアプリでレポートを設計する際に目次を取り入れ、セクションの構造化を明確にし、より速く直感的なナビゲーションが可能

A table of contents in a report is a structured list of sections and subsections that provides an organized overview of the document's content. It typically reflects the report's hierarchy and allows readers to navigate quickly to specific sections, either through page references in printed formats or clickable links in digital formats. This functionality improves usability by reducing the time required to locate information, supporting clearer document structure, and making complex or lengthy reports easier to understand and manage. For organizations that distribute detailed analytical or operational reports, a table of contents contributes to a more professional presentation and a more efficient review process.

Several JavaScript reporting components allow you to add a table of contents, including:

  • DevExpress Reporting provides a built-in table of contents control that can be bound to report elements, automatically generating entries based on defined heading levels and supporting interactive navigation in exported formats such as PDF and web previews.
  • ActiveReportsJS by MESCIUS includes a table of contents component that integrates with its JavaScript-based reporting engine, enabling developers to define document map nodes and create interactive, hierarchical navigation within browser-based report viewers.
  • Stimulsoft Reports.JS enables developers to create a configurable TOC using report bands, components, and bookmark functionality, with support for nested structures and interactive links in exported documents to improve navigation across complex reports.

For an in-depth analysis of features and price, visit our comparison of JavaScript reporting components.

Compare JavaScript Report Components

ストリームからの安全なPDF読み込みを有効化

2月 16, 2026
ストリームからPDFを直接読み込みレンダリングし、クラウド、コンテナ、データベース駆動のASP.NETアプリケーションで安全かつファイルフリーに閲覧可能

Opening PDFs directly from streams in ASP.NET PDF Viewer components refers to the ability to load and render PDF documents from a .NET Stream object rather than from a physical file stored on the server. This means the PDF content can be retrieved dynamically from sources such as databases, cloud storage, web APIs, or generated in memory at runtime, and then passed directly to the viewer for display. By working with streams, applications can avoid temporary file storage, improve security by reducing file system exposure, and better support modern deployment scenarios such as containerized or cloud-based environments where local storage may be limited or transient.

Several ASP.NET Core PDF viewer components offer open PDFs from stream functionality including:

For an in-depth analysis of features and price, visit our comparison of ASP.NET Core PDF viewer components.

Compare ASP.NET Core PDF Viewer Components

PowerPointファイル内の表を簡単に管理可能

2月 13, 2026
DevExpress Office File APIはPowerPointテーブルのサポートを追加し、アプリケーションがプレゼンテーションファイル内の表データの読み書きや変更が可能

DevExpress Office File API is a robust library designed to simplify the creation, editing, and processing of popular office document formats, including Word, Excel, PowerPoint, and PDF. It allows developers to integrate advanced document management features into their applications without relying on external software like Microsoft Office. Key features include document generation, data import/export and template customization. The API supports advanced formatting, encryption, and digital signatures, ensuring secure and professional-grade output.

The DevExpress Office File API now includes full support for PowerPoint tables, allowing applications to upload and save presentations that contain tabular data and interact with that data through code. Developers can read existing tables, modify their structure and content, remove tables that are no longer needed, or create entirely new tables from scratch. This addition makes it easier to automate report generation, update presentation data, and integrate PowerPoint files into document processing workflows where tables play a central role.

DevExpress Office File API is licensed per developer and is available as a Perpetual License with a 12 month support and maintenance subscription. See our DevExpress Office File API licensing page for full details.

DevExpress Office File API is available individually or as part of DevExpress Universal.