Free or Open Source Diagramming Component for WinForms [closed]

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I need to be able to generate dependency diagrams programmatically. I'd like it to be able to generate a bunch of boxes with labels and connectors linking them, and ideally the component would position them automatically onto a design surface which could then be manually rearranged.

I'm using WinForms and C# 2.0 (VS2005).

EDIT: However, since it'll be an internal tool, I can probably use 3.5 SP1 and WPF if there any suggestions in that arena.

Must be free or open source.

Any recommendations?

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Too late for the questioner but perhaps interesting for researchers:

NShape

NShape is an Open Source diagram designing framework for .NET WinForms. Software developers use NShape to integrate diagramming capabilities into their applications. Using NShape, applications let users view, annotate, modify and create diagrams like flow charts, wiring schemes or project charts. NShape is open source and has a dual license which allows it to be employed for free in open source projects and for a license fee in commercial projects.

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Did you try the CodeProject article series by Sukram:

WPF Diagram Designer

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Here is some references which might be interesting for you:

Diagram.NET

Diagram.NET is a free open-source diagramming tools written entirely in C#. Put Diagram.NET WinForm Control into your form and, like Microsoft Visio®, the user can draw shapes and links. With some code you can control, change, add and delete these elements.

Microsoft Chart Controls

The samples environment for Microsoft Chart Controls for .NET Framework contains over 200 samples for both ASP.NET and Windows Forms. The samples cover every major feature in Chart Controls for .NET Framework. They enable you to see the Chart controls in action as well as use the code as templates for your own web and windows applications.

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You might want to take a look at GraphViz which is being distributed under CPL (i.e. free of charge). It is not exactly for .NET/WinForms but can be useful anyway. The library's main purpose is to visualize graphs (and dependency diagram is effectively a [directional] graph). You can use it to either get an image (graph layout) or an array of points (coordinates for you items).

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OpenDiagram

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.

I have tried it with WinForms, works very well.

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I have similar request as yours. Here's one open source solution for drawing diagrams. It's from Microsoft and samples written in C#.

https://github.com/Microsoft/automatic-graph-layout

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Here's one that renders to HTML5 (You can easily extend to Visio) from GridWizard/Github Source code: https://github.com/gridwizard/SimpleFlowDiagram Wordpress doc: https://gridwizard.wordpress.com/2015/03/25/simple-c-library-to-render-graph-to-flowchart/

Downside is, you need a viewer to display HTML5. Alternatively, SimpleFlowDiagramLib already calculate Node.x and Node.y - you can render it to Winform/WPF yourself (but then you need to code rendering yourself)

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Vote for NShape. More or less it's fine.