.NET 新聞

用滑動控制項微調值輸入

11月 27, 2025
為使用者提供直觀的軌跡欄資料編輯器，其可提高數位輸入，保持有效範圍，並提供視覺回饋。

A trackbar in data editors provides a sliding control that allows users to adjust numeric values within a defined range through an interactive visual interface. It reduces the need for manual text entry, prevents invalid inputs by enforcing minimums, maximums and step increments, and offers immediate feedback as values change. Trackbars are especially useful in scenarios where users need to fine tune settings such as selecting volume levels, adjusting brightness, setting filter thresholds or choosing time or price ranges, making them ideal for applications that benefit from quick, intuitive and precise value selection.

Several .NET WinForms components offer Trackbar Data Editors including:

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

Compare .NET WinForms Data Editors

使用 WPF 導入和匯出 Excel XLSX 檔

11月 27, 2025
使用 Spread.NET 在您的 WPF 應用中輕鬆導入和匯出 Excel 表格。

Spread.NET helps you create spreadsheets, grids, dashboards, and forms. It includes a powerful calculation engine with 450+ functions and the ability to import and export Excel spreadsheets. You can develop in Visual Studio using VB or C# for WinForms, ASP.NET, and WPF.

In this blog post, MESCIUS Product Marketing Specialist Mackenzie Albitz guides you through four essential steps for importing and exporting Excel spreadsheets in your WPF applications:

  • Create a C#/VB WPF Spreadsheet Application
  • Define the User Interface for a WPF Spreadsheet App
  • Add Excel XLSX Import Code - OpenExcel Method
  • Add Excel XLSX Export Code - SaveAs Method

Detailed sample code is included and you can even download a finished sample project to follow along.

Read the complete blog post to learn the steps for integrating this powerful Excel functionality into your WPF applications.

Spread.NET is licensed per developer and is available as a Perpetual License with a 12 month support and maintenance subscription. We can supply any Spread.NET license including new licenses, maintenance renewals, and upgrade licenses. See our Spread.NET licensing page for full details.

For more information, visit our Spread.NET product page.

在 Web 應用中將手寫筆記添加到 PDF

11月 26, 2025
帶有自由繪圖和墨蹟注釋的 ASP.NET Core PDF 控制項允許使用者將簽名、草稿和筆記直接添加到文件。

Freehand Draw, also known as Ink Annotation, in ASP.NET Core PDF Viewer controls allows users to add freeform, hand-drawn annotations directly onto PDF documents. This feature mimics natural handwriting or sketching by enabling input through mouse, touch, or stylus, making it especially useful for scenarios requiring personal notes, signatures, or diagrammatic feedback. The annotations are embedded as part of the PDF, ensuring they remain accessible and visible across different platforms and viewers. It is commonly used in applications where document review or digital signing is required, enhancing interactivity and collaboration within PDF-based processes.

Several ASP.NET Core Assembly PDF Viewer components offer support for Freehand Draw/Ink Annotation including:

  • Document Solutions for PDF by MESCIUS allows you to draw free‑hand ink annotations that capture user‑stroke paths and embed them as editable vector markup within a PDF.
  • ImageGear .NET by Accusoft enables freehand and polyline annotation so developers can capture scribbles, arrows or curves and save them as PDF annotation objects.
  • Syncfusion ASP.NET Core PDF (part of Syncfusion Essential Studio Enterprise) supports ink annotation within its viewer, enabling users to draw and add signatures to PDFs.

For an in-depth analysis of features and price, visit our comparison of ASP.NET Core Assembly PDF Viewer Components.

Compare ASP.NET Core Assembly PDF Viewer Components

用強大的 Elsa 工具構建視覺化工作流程

11月 26, 2025
ABP Platform 10.0 添加 Elsa 工作流程模組，使開發人員能夠直接在其應用中設計、執行和管理視覺化工作流程。

ABP Platform is a comprehensive framework designed to accelerate the development of enterprise software solutions by offering an opinionated architecture built on best practices for .NET and ASP.NET Core. It equips developers with the essential infrastructure, production-ready startup templates, pre-built application modules, and modern UI themes needed to build robust, scalable, and maintainable applications. With powerful tooling, detailed guides, and extensive documentation, ABP Platform improvs implementation, reduces repetitive tasks, and ensures consistency across projects. Ideal for organizations seeking to enhance productivity and maintain high-quality standards, it enables teams to focus on delivering business value while the platform handles architectural complexity and automation.

The ABP Platform 10.0 update introduces the Elsa Workflow module, giving developers a fully integrated way to design and execute visual, event-driven processes within both monolithic and microservice architectures. With built-in support for Elsa Studio, developers can model and manage behavior through a hybrid UI while relying on ABP to handle execution, state management, and service interactions, resulting in a more consistent and maintainable approach to orchestrating application processes.

To see a full list of what's new in version 10.0.0, see our release notes.

The ABP Platform is available as a Team, Business or Enterprise license, which entitles developers to use the platform's Pro features and provides software updates and technical support for 1 year. See our ABP Platform licensing page for full details.

For more information, visit our ABP publisher page.

無須離開網格即可探索資料層

11月 26, 2025
網格中的向下鑽取功能允許使用者從摘要切換到詳細的現場記錄，提升清晰度和資料理解。

Drill-down capability within a grid control enables users to move from summary data to increasingly detailed records within the same interface, creating a smooth and focused exploration experience. It improves productivity by reducing screen changes and extra queries, helps users spot patterns and exceptions more quickly, and keeps complex information clearly organized. Typical use cases include reviewing sales by region, then by city and customer, analyzing financial summaries that open into individual transactions, or exploring product inventories from category to specific item.

Several .NET WinForms grid controls offer drill-down capability including:

  • DevExpress WinForms Data Grid (part of DevExpress WinForms) lets you drill into hierarchical records, revealing insights quickly, within a responsive grid interface.
  • FlexGrid for WinForms (part of ComponentOne Studio WinForms by MESCIUS) allows you to drill through layered data, exposing meaningful details.
  • Infragistics WinDataGrid (part of Infragistics Ultimate UI for Windows Forms) facilitates drill down navigation, enabling users to uncover granular information while maintaining clarity.

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

Compare .NET WinForms Grid Controls