Rank 1
Iron
19 Jan to 26 Jan 2026: highlights of the new online resources that we published last week.
Article: https://www.telerik.com/products/wpf/documentation/controls/radbuttons/commands
Summary: Learn how to use WPF commanding with Telerik UI for WPF RadButtons: bind ICommand to RadButtonBase (RadButton, RadToggleButton, RadSplitButton), set CommandParameter and CommandTarget, and rely on CanExecute/CanExecuteChanged to control enabled state. You’ll see MVVM-friendly patterns for routed and custom commands and when each control invokes Command, so you can replace Click handlers and centralize execution logic.
Article: https://www.telerik.com/products/wpf/documentation/controls/radchat/message-status
Summary: This article shows how to display and update message delivery state in the WPF RadChat control, covering common states like Sending, Sent, Delivered, Read, and Failed via each message’s Status property and the built-in enum. It demonstrates updating the status from your async/MVVM workflow and customizing the status indicator (visibility, placement, and visuals) using styles, DataTemplates, or a template selector.
Article: https://www.telerik.com/products/wpf/documentation/controls/radbuttons/popup-animation
Summary: Configure the drop-down popup animation for Telerik UI for WPF RadButtons, specifically RadDropDownButton and RadSplitButton. The article shows how to enable or disable open/close animations and adjust settings like duration and easing in XAML, with options to apply them per control or across the application for consistent behavior and performance.
Article: https://www.telerik.com/products/wpf/documentation/controls/radbuttons/button-extensions
Summary: This article shows you how to use the Telerik WPF ButtonExtensions attached properties to extend ButtonBase-derived controls (such as RadButton and related buttons) with additional behavior and visuals without retemplating. It enumerates the available extensions, explains their effects and default values, notes which controls they apply to, and provides examples for configuring them in XAML in an MVVM-friendly way.
Article: https://www.telerik.com/products/wpf/documentation/controls/radbuttons/features/speech-to-text-button
Summary: Add a Speech-to-Text Button from RadButtons to your WPF app to start/stop microphone dictation and insert recognized text into a target TextBox or other input at the caret. Configure the target element and recognition culture, and handle listening, result, and error events to control the flow; the control uses the machine’s speech recognition engine and requires microphone access.
Article: https://www.telerik.com/products/wpf/documentation/controls/radpdfviewer/customization-and-extensibility/custom-ui-layer
Summary: This article shows you how to add a custom UI layer to the WPF RadPdfViewer to render overlays (e.g., highlights, adorners, interactive elements) above PDF pages without modifying the document. You implement and register a layer in the viewer’s UI layer pipeline so it stays synchronized with zoom and scrolling, position elements using document-to-view/page transforms, and control z-order, hit testing, and updates on layout/viewport changes.
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15 Dec to 22 Dec 2025: highlights of the new online resources that we published last week.
Article: https://www.telerik.com/products/wpf/documentation/knowledge-base/kb-pdfviewer-filenotfoundexeception-systemfontsmanager
Summary: This article explains why RadPdfViewer for WPF can throw a FileNotFoundException referencing SystemFontsManager at runtime and how to resolve it. It covers common root causes—missing or mismatched Telerik.Windows.Documents.* assemblies, PublishTrimmed/single-file publish removing types, or assemblies not copied to output—and provides fixes: reference the correct Telerik.Windows.Documents.Core/Fixed versions, ensure Copy Local, and either disable trimming or explicitly preserve the Telerik.Documents types so SystemFontsManager and related font support are included in the deployment.
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10 Nov to 17 Nov 2025: highlights of the new online resources that we published last week.
Summary: Learn how to use RadPdfViewer’s Find feature in WPF to search text in PDF documents, navigate next/previous matches, and highlight results. The article explains the built-in Find UI, commands and API for initiating searches, configuring options like match case and whole word, and handling events to react to search state changes, with code examples for integrating the search UI and driving it from code-behind or MVVM.
Article: https://www.telerik.com/products/wpf/documentation/controls/radpdfviewer/save-as
Summary: Use RadPdfViewer for WPF’s Save As to export the currently loaded PDF to a new file, preserving edits such as annotations and form fields. Invoke it from the UI or programmatically with RadPdfViewerCommands.SaveAs targeting your RadPdfViewer instance. The command is available regardless of whether the document was opened from a file path or a stream.
Article: https://www.telerik.com/products/wpf/documentation/controls/radpdfviewer/printing
Summary: Learn how to print PDFs from RadPdfViewer in a WPF application using the built-in Print command or programmatically from code-behind. The article shows how to invoke the WPF PrintDialog and configure print settings (for example, scaling and other output options) to control the printed result.
Article: https://www.telerik.com/products/wpf/documentation/controls/radpdfviewer/bookmarks
Summary: Learn how to enable and use the Bookmarks pane in RadPdfViewer for WPF to display a PDF’s hierarchical outline and navigate to bookmark destinations. The article shows how to toggle the pane in the built-in UI and how to access and traverse bookmarks programmatically so you can implement custom navigation or integrate bookmarks into your own controls.
Article: https://www.telerik.com/products/wpf/documentation/controls/radpdfviewer/scrolling
Summary: This article explains how to configure and control scrolling in RadPdfViewer for WPF, including vertical/horizontal scrollbars, continuous document scrolling, and how zoom and fit modes affect the viewport. It details user interactions (mouse wheel, touch, keyboard) and shows how to scroll programmatically to a page or offset and handle scroll changes through the viewer’s API.
Article: https://www.telerik.com/products/wpf/documentation/ai-assistant/mcp-server-as-a-nuget
Summary: This guide shows you how to install and self-host an MCP (Model Context Protocol) server via a NuGet package in a WPF app and connect it to RadAIAssistant. You will configure the server and register tools/resources so an LLM can invoke application capabilities through MCP.
Article: https://www.telerik.com/products/wpf/documentation/controls/radpdfviewer/ai-summarization
Summary: Learn how to enable AI summarization in the WPF RadPdfViewer so you can summarize the entire PDF or the current selection via built-in summarize commands. You configure an LLM provider, connect it to the viewer, invoke the commands, and optionally customize prompt text and output (length/format), with guidance on async execution, context/token limits, and error handling.
Article: https://www.telerik.com/products/wpf/documentation/controls/radpdfviewer/digital-signature
Summary: This article shows how to view and validate PDF digital signatures in RadPdfViewer for WPF, including displaying signature widgets, inspecting signer/certificate details, and reporting validity (trusted, expired, revoked, or document modified). It explains how to configure validation by providing trusted root certificates and enabling revocation checks (OCSP/CRL), handle user interactions with signatures, and notes that creating signature fields or signing PDFs is done with PdfProcessing.
Article: https://www.telerik.com/products/wpf/documentation/controls/radpdfviewer/interactive-forms
Summary: RadPdfViewer for WPF supports interactive PDF AcroForm forms, allowing you to display and fill fields such as text boxes, check boxes, radio buttons, list/combo boxes, and push buttons directly in the viewer. You can read and write field values, control focus and keyboard navigation, and handle standard form actions (submit/reset) through the API; XFA forms are not supported.
Article: https://www.telerik.com/products/wpf/documentation/controls/radpdfviewer/export-fixedpage-to-image
Summary: Learn how to export a WPF RadPdfViewer page (FixedPage) to an image (PNG/JPEG) by retrieving the FixedPage for a given PDF page, converting it to a bitmap, and saving it to a file or stream with control over size and DPI/scale. The article explains handling page virtualization and layout so you can export pages that aren’t currently visible and generate consistent thumbnails and previews from C# code.
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29 Oct to 05 Nov 2025: highlights of the new online resources that we published last week.
Summary: This article shows you how to use Telerik UI for WPF in .NET Core/.NET SDK-style WPF projects, outlining supported target frameworks and the Windows-only scope. You add the Telerik packages from your private NuGet feed, reference the controls and XAML namespaces, merge theme resource dictionaries, and account for Visual Studio design-time support and differences from .NET Framework.
Article: https://www.telerik.com/products/wpf/documentation/security/overview
Summary: This article outlines the Telerik UI for WPF security model: assemblies are strong-named and Authenticode-signed, and the controls are designed for full-trust desktop applications rather than partial-trust environments (e.g., XBAP or partial-trust ClickOnce). It provides guidance to reduce risk—avoid loading untrusted XAML or documents, gate clipboard/drag-and-drop/printing/file access, keep dependencies updated, and align your app with .NET/WPF security practices.
Feel free to check them out and share your thoughts!
The Telerik Team