.NET 新闻

在 WinForms 应用中启用 PDF 注释

12月 19, 2025
带有内置注释工具的 PDF 查看器让用户在不修改原始内容的情况下审查、评论和协作文档。

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.

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

Explore WinForms PDF Annotation Features

将基于规则的格式化添加到数据网格

12月 19, 2025
ComponentOne Studio Enterprise 2025 v2 通过条件格式化、验证、数据栏和自动换行，增强了 FlexGrid for WinUI。

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 adds a conditional formatting rules engine to FlexGrid for WinUI. This enables validation-driven formatting and data bars, allowing developers to highlight invalid values, enforce input consistency, and make comparisons directly within the grid. The update also introduces word-wrapped column headers, improving readability for longer labels and supporting more compact, maintainable layouts.

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.

直接在 WPF 数据应用中轻松编辑图片

12月 19, 2025
在应用内启用 WPF 图片编辑功能，带有注释、裁剪、变换、缩放、撤销和重做，以及简单的导入和导出功能。

Image editing in a data editor component helps users work with images alongside other data fields. This includes basic functions like cropping, rotating, resizing, and adding annotations. It's useful for tasks such as cleaning up user-uploaded files, adjusting product photos, or marking up visual references—all without switching to another application. This keeps image handling part of the same process as your data updates.

Several .NET data editor collections provide an image editor, including:

  • DevExpress WPF Data Editors (part of DevExpress WPF) lets you embed image editing within forms, enabling cropping, annotation and validation.
  • Telerik UI for WPF Data Editors (part of Telerik UI for WPF) allows you to integrate image modification tools into business apps, supporting annotations and transformations.
  • Syncfusion WPF Data Editors (part of Syncfusion Essential Studio Enterprise) facilitates image editing in data driven interfaces, enabling adjustments and visual annotations.

For an in-depth analysis of features and price, visit our .NET data editors comparison.

Compare .NET Data Editors

庆祝与 combit 合作 15 周年

12月 15, 2025
ComponentSource与combit 已经合作了 15 年，通过可信赖的报表工具赋能开发人员提供数据驱动应用。

ComponentSource and combit have partnered for 15 years, providing developers worldwide with powerful reporting, reporting designers, and data visualization tools to build professional, data-driven applications.

combit is a leading provider of reporting components for software developers, best known for List & Label – a multiple award-winning reporting tool used by development teams around the globe. Their components make it easier to design and integrate customized reports, dashboards, lists, and labels into business applications. Through ComponentSource, customers can conveniently license, and maintain these combit products, confident they’re choosing proven technology backed by professional support and ongoing innovation.

Together, ComponentSource and combit help development teams deliver applications faster, with flexible licensing options, reliable updates, and expert assistance. As demand for advanced reporting and analytics continues to grow, this long-standing collaboration ensures customers can rely on a trusted combination of combit’s technology and ComponentSource’s global distribution and customer service for many years to come.

Learn more about combit.

用 2D 等高线图为 WPF 可视化 3D 数据

12月 12, 2025
ComponentOne Studio Enterprise 2025 v2 通过高性能轮廓映射和渐变可视化功能提升了您的 WPF 应用。

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 2D Contour Charts in FlexChart for WPF, allowing developers to represent three-dimensional data on a two-dimensional surface through contour lines or shaded bands that highlight areas of equal value. This capability delivers a clear visual understanding of gradients, surface characteristics, and other continuous data patterns. With support for multiple contour types, customizable contour levels, and flexible gradient color palettes, developers gain precise control over how value transitions are presented. These enhancements make the WPF contour chart well suited for scientific and engineering analysis, elevation and surface mapping, and any application that requires accurate comparison of value distribution across two variables.

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.