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.NET Interface (C#)

This section assumes that you are already familiar with the C# programming language. If not, a variety of books and websites are available for learning the language (for example, the Microsoft online C# documentation).

While C# programs have historically only run on Windows machines, Microsoft has recently released an open-source, cross-platform .NET implementation (.NET Core) that allows you to run C# programs on Linux and Mac OS as well. You will find the Gurobi library that supports .NET Core 2 in <installdir>/lib/gurobi80.netstandard20.dll. For more information on how to obtain and use .NET Core, please refer to the .NET Tutorial.

We will work through a simple C# example in order to illustrate the use of the Gurobi .NET interface. The example builds a model, optimizes it, and outputs the optimal objective value.

Our example optimizes the following model:

maximize	x	+	y	+	2 z
subject to	x	+	2 y	+	3 z		4
	x	+	y				1
	x, y, z binary

• Example mip1_cs.cs
• Example details
• Creating the environment
• Creating the model
• Adding variables to the model
• Setting the objective
• Adding constraints to the model
• Optimizing the model
• Reporting results - attributes
• Cleaning up
• Error handling
• Building and running the example

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Next: Example mip1_cs.cs Up: Gurobi Optimizer Quick Start Previous: Building and running the