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.NET UI Components

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.

  • Enhance your application UI with powerful datagrids, charts, report viewers and more.

  • Accelerate your dev cycle with easy-to-use designers and hundreds of samples.

  • Write less C# .NET code with production-ready UI features, Web APIs and data source connectors.

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The 2024 v1 release is here!

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.NET UI controls are reusable design elements that help developers implement a wide variety of software features in less time. ComponentOne is a complete suite of fast, flexible and feature-rich C# .NET and VB.NET UI components including datagrids, charts, input, reporting, layout and more.

Why Choose ComponentOne .NET Controls?

Cross Platform Chart

400+ .NET UI Controls

Complete your toolbox with hundreds of more advanced .NET UI controls and data management components for desktop, web and mobile applications.

Quick, and Easy to Use .NET Controls

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

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

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 8, NuGet, and VS Support

.NET 8 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

Royalty-Free, Unlimited Distribution

Our simple licensing model makes distribution and deployment a breeze because the components never expire.

First-Class Support

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

JavaScript UI Wijmo Controls

ComponentOne Studio Enterprise includes access to Wijmo, 100+ JavaScript UI controls with Angular, React and Vue support.

Popular Cross-Platform .NET Controls

Our popular “Flex” controls are supported across WinForms, WPF, UWP, ASP.NET Core and Blazor.

.NET Datagrid

FlexGrid - The #1 .NET Datagrid

  • The industry's longest supported and most trusted C# .NET datagrid control.

  • Favorite features include subtotals, custom cells, and Excel-like filtering.

  • Optimized for performance and now supported across every .NET platform including .NET 8 and MAUI.

Learn More About FlexGrid
.NET Chart Controls

FlexChart - Fast, Flexible & Financial Charts

  • Design limit-less dashboards with 80+ chart types.

  • Develop with specialized components for Cartesian charts, radar, pie, sunburst, heatmap, treemap and more.

  • Our Studio Enterprise Financial Chart library adds advanced chart types and indicators including Heiken-Ashi, Kagi and Renko.

Learn More About FlexChart Learn More About Financial Chart
C# .NET Pivot Tables

FlexPivot - Powerful Pivot Tables & Charts

  • Deliver runtime report generation in the form of dynamic pivot tables and charts.

  • Allow end-users to build a summary view of their data without writing much code.

  • Persist views for quick access and export to Microsoft Excel.

Learn More
C# .NET Reporting

FlexReport - .NET Report Engine & Designer

  • Generate reports across any .NET platform with our lightning-fast .NET Core reporting engine.

  • Distribute your own .NET desktop report designer, with custom branding, so your users can design their own reports.

  • View and print reports and PDF documents with FlexViewer.

Learn More About FlexReport Learn More About FlexViewer

Explore All .NET Platforms and Editions

For development platforms new and old, ComponentOne has you covered.

What's New in ComponentOne 2024 v1

Our first major release for 2024 is now available! Release highlights:

  • Microsoft Office 365 Themes for WinForms (beta)
  • FlexGrid for WinForms transposed view
  • Configure TreeGrid views for WPF, WinUI, Blazor and .NET MAUI
  • View documents and reports in Blazor with our new FlexViewer for Blazor
  • FlexGrid for Blazor enhancements
  • New FlexChart for .NET 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.

See support plans

Search Our Knowledge Base

Our all-in-one search tool provides results across all online resources plus our community forums, knowledgebase and blogs.

Search online resources

Online Ticket System

Submit technical questions or issues quickly and easily through our online support ticket system.

Submit a ticket

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.

Learn more about licensing

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. 

Contact Us to Learn More

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. 

Read the EULA

ComponentOne Customer Feedback and Awards

Five Star Rating

"Prompt responses, quality feedback, and help with code examples. Fantastic service!"


Five Star Rating

"Excellent product with good support"


Five Star Rating

"I am very appreciative of the effort your entire team gave to make this transaction happen. Thank you for your efforts!"


ComponentSource Award 2023 #2 Publisher ComponentSource Award 2024 Top 25 Product

"When I run into complex problems, I turn to my ComponentOne Studio Enterprise toolbox."


"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."



"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!"


"Easier to use right off the bat. I liked using the Scheduler for drag-and-drop capability."


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