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Application Security — Documents Are Untrusted Input

A .docx is a ZIP file Open a .docx file in a hex editor and the first two bytes are PK . Every modern Office format - .docx , .xlsx , .pptx - is a ZIP archive of XML parts and embedded resources. PDF is not a ZIP file, but just like Office formats it...

Oliver Sturm (DevExpress)

29 May 2026

.NET .net core Architecture ASP.NET Blazor Office File API Reporting security WinForms WPF XAF

Application Security — Stronger Hashes and Safer Passwords

Every application that stores passwords makes an implicit bet: that the hashing algorithm it chose will remain strong enough to resist attacks for as long as those hashes exist. It’s worth revisiting that bet regularly. This post walks through the reasoning...

Oliver Sturm (DevExpress)

17 April 2026

.NET .net core Architecture ASP.NET Blazor Dashboard Data Access Office File API Reporting security WinForms WPF XAF

What's coming in v25.1

As we look ahead to the DevExpress v25.1 release anticipated early June, there is a lot to get excited about across our product line-up. From UI enhancements and performance boosts to serious AI integration and accessibility upgrades, the focus this cycle...

Paul Usher (DevExpress)

13 April 2025

ai Blazor Dashboard DevExtreme News Office File API prerelease Reporting v25.1 VCL WinForms WPF XAF

Spreadsheet Control for WinForms and WPF – Sort and Filter by Color via the User Interface

In a recent minor update (v24.1.4), we introduced new UI elements for both our WinForms and WPF Spreadsheet component libraries. These enhancements allow users to sort and filter spreadsheet data by color. The following video showcases this new capability...

Polina Fedorova (DevExpress)

14 October 2024

Filter Filter by Color Office File API Sort Sort by Color Spreadsheet UI User Interface v24.1 WinForms WPF

PDF Document API — Using Layers (Optional Content Groups) to Control Visibility of PDF Graphics Objects (v24.1)

Complex PDF documents such as CAD drawings, technical construction plans, layered artwork, maps, or multi-language documents are full of visual information. PDF layers are often used to simplify these documents and improve overall readability (layers...

Margarita (DevExpress)

28 August 2024

2024 Facade API Office Office File API PDF PDF Document API v24.1 WinForms WPF

DevExpress AI — Sneak Peek of New Smart Functions Coming Soon to Blazor, DevExtreme, WinForms, and WPF UI Components

I hope this post finds you well - as always, thank you for your continued support and commitment to DevExpress development tools. Should you have any questions about this post or if you'd like to discuss AI-related requirements with us, feel free to submit...

Ray Navasarkian (DevExpress)

31 July 2024

ai ASP.NET Core Blazor DevExtreme EAP JS ML net netcore Office File API ONNX OpenAI prerelease Reporting smartcomponents WinForms WPF

Word Processing Document API, Rich Text Editors (WinForms and WPF) — Content Controls (v23.2)

As you know, content controls are interactive UI elements (text fields, drop-down lists, date pickers) designed to enter and manage information on-screen. Content controls are often used within templates/forms to standardize document formatting and streamline...

Polina Fedorova (DevExpress)

28 February 2024

Content Controls Office Office File API Rich Text Editor WinForms Word Processing WPF

Spreadsheet Document API, Spreadsheet Controls (Win and WPF) — Form Controls (v23.2)

As you know, form controls represent interactive elements (buttons, checkboxes, and drop-down lists) and are used in worksheets to deliver a more refined user experience. In our last major release (v23.2), we implemented form control support in our Spreadsheet...

Polina Fedorova (DevExpress)

21 February 2024

Form Control Form Controls Office Office File API Spreadsheet v23.2 WinForms WPF

Spreadsheet Document API, Spreadsheet Controls (Win and WPF) — Chart Enhancements (v23.2)

WinForms and WPF Spreadsheet Chart API enhancements introduced in our last major release (v23.2) ...

Margarita (DevExpress)

2 February 2024

2023 API Chart Charts Office File API Spreadsheet spreadsheet document api v23.2 WinForms WPF

Spreadsheet Document API, Spreadsheet Controls (WinForms and WPF) — Chart Enhancements (v23.1)

We recently introduced a series of chart-related enhancements to our Spreadsheet product line (v23.1). In this blog post, I’ll summarize new features/capabilities you can incorporate in your next DevExpress-powered app/solution. Trendlines In a previous...

Polina Fedorova (DevExpress)

7 August 2023

2023 Charts Office File API Spreadsheet v23.1 WinForms WPF