A Powerful Suite of C# .NET UI Controls
Complete your .NET applications faster and with more features using our trusted toolkit of .NET controls. Expand your toolbox with access to 400+ .NET UI controls, including:
- FlexGrid - The Industry's Best .NET Datagrid
- FlexChart - Over 80 Fast & Flexible .NET Charts
- FlexPivot - Powerful Pivot Grids & Charts
- FlexReport - .NET Report Engine & Designer
Explore Popular .NET Platforms
ComponentOne is a complete suite of fast, flexible and feature-rich .NET UI components and controls including grids, charts, input, reporting, layout and more. Written in C# and VB.NET, our powerful tools support the entire .NET stack.
Popular Cross-Platform .NET Controls
Our popular "Flex" controls are supported across WinForms, WPF, ASP.NET Core, Blazor, WinUI & MAUI.
First Class Support - Let Us Help You
We’re here to help you achieve your .NET project goals, big or small.
24-Hour Response Time
Get timely responses to your technical questions from our support team within 24-hours with Platinum Support.
Full Access to Online Resources
Access our online resources at any time including documentation, videos and samples.
Six Updates Per Year
With six updates per year (2 major and 4 maintenance releases), rest assured you won’t wait as long for addressed issues to be fixed.
Enterprise Support
Got a large team or urgent requirements? Ask about our new Enterprise Support option for the most complete support coverage.
Search Our Knowledge Base
Our all-in-one search tool provides results across all online resources plus our community forums, knowledgebase and blogs.
Online Ticket System
Submit technical questions or issues quickly and easily through our online support ticket system.
Why Choose ComponentOne .NET Controls?
400+ .NET UI Controls
Complete your toolbox with hundreds of more advanced C# .NET UI controls and data management components for desktop, web and mobile applications.
Quick and Easy-to-Use
Our C# .NET UI controls speed up development time with easy-to-use designers, more built-in features, time-saving samples, and rich, flexible APIs.
The Best .NET Datagrid
Get FlexGrid, the industry's longest supported and most trusted WinForms datagrid. Now supported across every .NET platform.
Trust Our 20+ Years of Experience
Though sold under different companies, ComponentOne controls have been developed since .NET 1.0 and trusted by over 250,000 developers.
.NET 9 and NuGet Support
Build apps that target the latest version of .NET with seamless Visual Studio 2022 integration and NuGet package distribution for easy maintenance.
Royalty-Free, Unlimited Distribution
Our simple licensing model makes distribution and deployment a breeze because the components never expire.
First-Class Support
Let us help you accomplish your .NET project goals. Get timely responses to your technical issues from our dedicated support team.
JavaScript UI Wijmo Controls
ComponentOne Studio Enterprise includes access to Wijmo, 100+ JavaScript UI controls with Angular, React and Vue support.
What’s New in ComponentOne 2025 v1
Our first major release for 2025 is now available! This release delivers several exciting enhancements and features throughout its .NET UI components and controls, including:
- Redesigned FlexGrid Column Filter UI for WinForms
- Right-Side Column Freezing in FlexGrid for WPF, Blazor, and ASP.NET Core
- Conditional Formatting Rules Manager UI for WPF
- Production Ready FlexReport for .NET Standard and FlexViewer for WinUI
- New Windrose and Axis Break features in FlexChart
- And More!
Schedule a demo with the ComponentOne product manager to help get you started
Easy Licensing and Distribution
Manage your licenses through your MESCIUS account.
Licensing FAQ
ComponentOne is licensed per developer. Once you purchase a license, you can build and publish your .NET applications using ComponentOne controls. Licensing is perpetual and royalty-free.
Become an OEM Partner
To create your own commercially licensed SDK or web application builder, choose the Commercial OEM license. Commercial OEM and SaaS licenses are customized per customer.
End-User Licensing Agreement
Our End-User License Agreement (EULA) includes information on ComponentOne's licensing, legal agreement, and the terms and conditions that govern software usage.
Featured Blogs, Videos, and Other Resources
Explore All .NET Platforms and Editions
For development platforms new and old, ComponentOne has you covered.
Cross-Platform
* Unsupported (Licensing still available)
ComponentOne Customer Feedback and Awards
"Prompt responses, quality feedback, and help with code examples. Fantastic service!"
RICHARD HERBERT
"Excellent product with good support"
MIKE WEBSTER
"I am very appreciative of the effort your entire team gave to make this transaction happen. Thank you for your efforts!"
SAM COLE
"When I run into complex problems, I turn to my ComponentOne Studio Enterprise toolbox."
KEN SPENSER, MICROSOFT REGIONAL DIRECTOR - FRAMEWORK MASTERS
"I love to use C1 components! I can be confident that if I need to do a particular task, ComponentOne will have the control to do the job."
SILV SORDELLO, SOFTWARE DEVELOPER
"As an ISV, I need tools that allow me to be competitive. Therefore, it's a must to use reliable and stable tools for customized solutions...ComponentOne provides all that to me and even more!"
DENNIS WALLENTIN, MICROSOFT MVP (EXCEL)
"Easier to use right off the bat. I liked using the Scheduler for drag-and-drop capability."
MICHELLE GIBSON, SOFTWARE ENGINEER