Managing A Debug and Release Connection String

Question

What is a good approach to managing a debug and release connection string in a .NET / SQLServer application?

I have two SQL Servers, a production and a build/debug and I

Answer 1

When you open a web project you'll get 2 extra files of the Web.Config out of the box - Web.Debug.config & Web.Release.config.

1.Add your desired connection string to those files with XSLT attributes xdt:Transform="SetAttributes" xdt:Locator="Match(name)"

  
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2.Edit your csproj and add a TransformXml target:

The second step will make the transform on each build (according to your active configuration) and not only on publish, giving you a better debug experience. I learnt it from this post.