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I am looking for a professional tool that will enable me to implement an excel like formula engine.
I require support for custom functions, an editor (in winforms or WPF) which gives a descent user experience (Intellisense , auto complete, partial evaluation of the formula etc...)
All I could find so far are just back-end projects such as:
http://www.codeproject.com/Articles/17853/Implementing-an-Excel-like-formula-engine
http://www.codeproject.com/Articles/57264/Eval3-wrapper
And those do not provide any client side , only backend engine.
There are some Excel-formula-engines out there (mostly commercial) - but since you need a frontend too the only one I know of is SpreadsheetGear. Hope this helps...
Spreadsheetgear is one of the more established products. According to their site Microsoft also use their product?? It's expensive though.
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I'm looking to start doing dark launches and ramp ups in our production site (ASP.Net Webforms / MVC). Are there any existing libraries or frameworks for .Net that help with this or do I just need to roll my own?
Clarification:
I want to build a feature and push it to production without users seeing it then have the ability to turn that feature on or off for a particular user, group of users, customer, etc.
EDIT
There are libraries / frameworks available in other languages for this.
Examples:
Ruby: https://github.com/jamesgolick/rollout
Python: https://github.com/asenchi/proclaim
I'm about to start building one but want to make sure I'm not re-inventing the wheel.
My question is: Are there any similar libraries for frameworks for .Net?
Looks like the term to search for is not "dark launch" but instead "feature flipper". I have now found a couple of libraries that do this in .Net:
Flipper by Michael Sarchet: https://github.com/msarchet/flipper
FlipIt by Tim Scott: https://github.com/timscott/flipit
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So I asked a similar question here but it was considered a duplicate: https://stackoverflow.com/q/6181191/319862
This time I will be a little bit more specific...
Are there any open source projects that can control the pwm frequency of a motherboard fan header. Please share links. The only software I can find is Speedfan and it does not seem to make the source available.
The next best thing I found was openhardwaremonitor, but it does not control fan speeds yet according to the issues list on google code.
-- edit --
I am mainly interested in Windows at this time, although a cross platform project would be great.
lm-sensors provides a fancontrol tool that can change the speed of your fans, along with some nice calibration tools to help you maintain reasonable temperatures with minimum energy and noise. Excellent tools.
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I have an app that my users use to build objects. For example, they will create a "user" object and add properties (name, address, etc).
I would like to use an environment like the one Visual Studio uses on its class designer or entity designer.
Is there a library out there that will help me with this?
Thanks for any suggestions.
Look at the Visualization and Modeling SDK. This helps you build a graphical DSL. Among other things, it comes with a template for a "class designer" DSL. You can start from there, and modify as needed.
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I am on a project where I have multiple users of a portal and they are connected to other users of the portal. Now we are asked to draw a “Social Network” relationship graph to see the relationships. The constraint is that this graph has to be seen in the web browser.
The graph has to be something like:
Is there any C# library or component to draw this type of graphs? We have already checked these:
http://flare.prefuse.org/
http://www.yworks.com/en/products_yfiles_practicalinfo_gallery.html
.NET graph library around?
http://quickgraph.codeplex.com/
https://graphsharp.codeplex.com/
http://research.microsoft.com/en-us/downloads/f1303e46-965f-401a-87c3-34e1331d32c5/default.aspx
http://sourceforge.net/projects/zedgraph/
But I want to check if you already used some other and your feedback.
I've used Northwoods Go.NET for many years and it has been great.
I've used Microsoft chart it's fine and free !
Maybe you can take a look to graphviz too : http://www.graphviz.org/
It can be expensive but Tom Sawyer Visualization, ActiveX edition is a solution to the problem.
Another great product I just stumbled across with HTML5 (canvas/SVG) support:
http://www.mindfusion.eu/features-netdiagram.html
They also have a pure client-side JavaScript library also with HTML5 support:
http://www.mindfusion.eu/jsdiagram.html
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I'm looking for an open source (GPL, LGPL etc) graph layout library for .net framework, preferably fully managed code. Im not worried about the visualisation aspect of things.
I can find lots of them for Java, but none for .net...
Thanks!
http://graphsharp.codeplex.com/ (Nice "visualisation aspect of things" :)
(...and for the "oldie" GraphViz, you can get no less than 3 language bindings for C#)
http://satsumagraph.sourceforge.net
Has force-directed graph layout (charged particles & springs model).
http://zedgraph.org/wiki/index.php?title=Main_Page
Tried it before...works great.