.NET 9 WinFormsのニュース

クリック可能な詳細ビューでデータをすばやく検索

10月 31, 2025
DevExpress Reportingは、サマリーデータから詳細レポートまでシームレスなドリルスルーを可能にし、ナビゲーションを改善し、より迅速な分析をサポート

DevExpress Reporting is a comprehensive suite of reporting tools that help developers create visually stunning and highly customizable reports for various applications. With its rich feature set, including data binding, layout design, printing, and exporting capabilities, DevExpress Reporting enables the efficient creation of reports that meet the most demanding business requirements.

DevExpress Reporting enhances data analysis by enabling drill-through reports, allowing developers to create interactive report designs that link summary-level data to detailed information. This feature provides a streamlined way for users to explore data hierarchies without leaving the main report, improving usability and workflow efficiency. By clicking on data points, users can view related details in a connected report, ensuring a cohesive and intuitive data exploration experience. This capability helps developers deliver more dynamic, context-rich reporting solutions that support faster and more informed decision-making.

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

DevExpress Reporting is available to buy in the following products:

柔軟なズームウィンドウを使用してチャートを移動

10月 29, 2025
LightningChart .NET v12.4.1ではLiteZoomBarが追加され、ユーザは重要な領域に焦点を当てながらデータセット全体を表示して、複雑なデータのパターンを明らかに

LightningChart .NET is a high-performance data visualization library designed for .NET developers working with WPF, WinForms, and UWP applications. It offers GPU-accelerated rendering for smooth real-time visualization of massive datasets, exceeding billions of data points. This library supports a wide variety of chart types, including 2D, 3D, polar, and geographic maps, along with extensive customization options for each. LightningChart .NET is a powerful tool for developers creating demanding data visualization applications requiring exceptional performance.

The LightningChart .NET v12.4.1 update enhances data visualization and navigation, allowing developers to display an overview of the entire dataset alongside a zoomed-in chart view - improving context awareness when analyzing large or complex data. The new LiteZoomBar offers a lightweight, memory-efficient alternative for applications requiring optimized performance. This tool provides greater control and efficiency in exploring and interpreting chart data.

To see a full list of what's new in v12.4.1, see our release notes.

LightningChart .NET is available per developer in packages for either WPF, WinForms, UWP or all 3. Each package comes as a subscription license (with 1 or 2 years of limited support), or a perpetual license (with 1 or 2 years of Standard or Premium support). Floating licenses and site licenses are available upon request. See our LightningChart .NET licensing page for full details.

Learn more on our LightningChart .NET product page.

グループ化とフィルタリングでスプレッドシートを整理

10月 23, 2025
スプレッドシートに折りたたみ可能なアウトラインを作成する直感的なグループ化およびフィルタリングツールを使用して、データを簡単に整理、検索、分析可能

Grouping and filtering are key spreadsheet tools that make data easier to manage and analyze. Grouping combines related rows or columns into collapsible sections for clearer summaries. Filtering displays only the information that meets specific conditions, helping focus on what matters most. Together, these features improve data management, reduce visual clutter, and enhance analytical clarity.

Several .NET WinForms spreadsheet controls contain data filtering and grouping controls including:

  • DevExpress WinForms Spreadsheet (part of DevExpress WinForms) lets you efficiently organize and analyze large datasets by grouping and filtering data.
  • Spread.NET WinForms (part of Spread.NET by MESCIUS) allows you to manage complex spreadsheets with intuitive grouping and advanced filtering for focused data analysis.
  • Infragistics WinForms Spreadsheet (part of Infragistics Ultimate UI for Windows Forms) facilitates data exploration through grouping and precise filtering.
  • MindFusion.Spreadsheet for WinForms enables streamlined data management with collapsible grouping and targeted filtering to simplify data review.

For an in-depth analysis of features and price, visit our comparison of .NET WinForms spreadsheet controls.

Compare .NET WinForms Spreadsheet Controls

組み込みPDF編集機能でフォームを簡単に完成

10月 21, 2025
ユーザーがPDFドキュメント内で直接フォームフィールドに入力、検証、送信できるようにして、より高速で正確なデジタルワークフローを実現

Filling out PDF form fields allows users to enter information directly into interactive elements within a PDF document such as text boxes, checkboxes, dropdowns, and signature fields. This functionality transforms static PDFs into dynamic fillable forms that can be completed digitally, reducing the need for printing or manual data entry. The ability to fill, validate, and submit forms directly within a PDF viewer improves efficiency, accuracy, and user experience while supporting accessibility and cross-platform use. Common use cases include completing applications, registration forms, surveys, contracts, and approval documents, making it an essential feature for businesses looking to streamline document-driven workflows.

Several .NET WinForms PDF Viewers feature support for form filling, including:

  • DevExpress WinForms PDF Viewer (part of DevExpress WinForms) lets you complete and submit interactive PDF forms directly within applications.
  • Telerik UI PDF for WinForms (part of Telerik UI for WinForms) enables users to enter, validate, and manage form data seamlessly within PDFs.
  • PDFView4NET Windows Forms Edition allows you to fill, edit, and save PDF form fields with ease, supporting dynamic, data-driven document interaction.
  • Syncfusion Windows Forms PDF (part of Syncfusion Essential Studio Enterprise) facilitates efficient form filling, validation, and submission inside PDF documents.

For an in-depth analysis of features and price, visit our comparison of .NET WinForms PDF viewers.

Compare .NET WinForms PDF Viewers

処理パフォーマンス大幅改善

10月 21, 2025
数式・帳票テンプレート・ファイル操作の処理性能が飛躍的に向上し、開発効率と実行速度が改善されました。

このバージョンでは、Excel操作APIとして重要な数式処理・帳票テンプレート生成・ファイル操作の３領域において、処理パフォーマンスの大幅な改善が実現されています。具体的には、VLOOKUP、XLOOKUP、HLOOKUP、LOOKUP、MATCH、XMATCH、UNIQUE など幅広い検索・計算系関数に対し、大規模な範囲に対する文字列検索性能が強化されました。また、AVERAGEIF の条件付き平均や POISSON.DIST、COMBIN といった関数でも、大きな引数を扱う場面での実行速度が改善されています。

帳票テンプレートの分野では、ITableDataSource を利用して大規模データを処理する際のメモリ使用量が削減され、長大な帳票を生成する際のシステム負荷が軽減されています。また、ワークブックの開閉や保存時に DefinedNames が多数含まれている場合でも、処理が速くなっており、ファイル操作の効率性も上がっています。

Excel帳票・計算処理を伴う業務アプリケーション開発において、特に大量データを扱ったり複雑な数式やテンプレートを頻用している開発現場では、V8J SP2の性能改善は即効的な効果が期待されます。

V8J SP2の新機能については、リリースノートをご覧ください。

DioDocs（日本語版）シリーズの製品や販売情報の詳細は下記のリンクをご参考ください。