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Entity Framework 4.1: Expert's Cookbook by Tim Rayburn, Devlin Liles

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Implementing optimistic concurrency

In this recipe, we are going to set up the Entity Framework to use a column for optimistic concurrency, so that multiple contexts do not over run each other without us knowing about it.

Getting ready

We will be using the NuGet Package Manager to install the Entity Framework 4.1 assemblies.

The package installer can be found at http://nuget.org.

We will also be using a database for connecting to the data and updating it.

Open the Improving Optimistic Concurrency solution in the included source code examples.

How to do it...

  1. We start by defining a new C# Test class named ConcurrencyTests in the test project by which we will set up our scope of changes, and make sure that we get the expected results. We are going to set ...

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