Advanced diagram editor for Flowcharts, Class Diagrams, DFDs, ERDs, Pie charts, Bar charts and etc. It's been developed in WPF , C#

A custom composite control using pure AJAX and Javascript to provide real-time diagram and flowcharting to your asp.net 2.0 pages. Unlike most commercial products that I've seen, EasyDiagram.NET offers a smooth real-time redrawing of node hierarchy. Please visit www.EasyDiagram.net for examples. EasyDiagram.NET can be imported into your toolbox for use on your webforms. Currently, the page that uses EasyDiagram.NET must have div { position: absolute } in its header in order for the diagramming to render correctly. The component is 100% C# and implements ICallBackEventHandler for AJAX processing. The amazing real-time line drawing is done in Javascript and I give all the credit to this developer with this great idea: http://www.p01.org/articles/DHTML_techniques/Drawing_lines_in_JavaScript/ Please note that this project is in the early stage of development, and as such there are plenty of bugs yet to work out and features to be added. Note to Developers I would be happy for you to join me in making EasyDiagram.NET even better, so if you'd like to know more, please email me at timheckel@gmail.com. Thanks.

A flow chart view and design component for the WinForms (.Net) platform.

Flowpad is a light, fast and easy to use flow diagram editor. It helps you quickly pour your algorithms from your mind to 'paper'. It is written using WPF/C# 3.5.

Flowton is a open source flowcharting application based on open source shape library NShape available at http://code.google.com/p/nshape. For now, it is primitive with inbuilt shapes and would want to expand its capability to more stencils. Developed in VB.NET Express 2010. and works on Windowos XP with SP3/Vista and .NET Framework 4.0

NShape is a diagram designing framework for .NET WinForms. NShape is open source and has a dual license.

Open Diagram is the definitive open source .net diagramming component library for the .Net framework winforms environment. Use Open Diagram to add interactive data visualizations to your .net applications.

A simple and powerfull workflow engine on SharePoint. It provider a flowchart flowcontainer to make the development of complex sharepoint workflow more easy. It's based on WF3.5 not WF4.