How to access custom project properties from a T4 template?

Question

In VS 2010, is it possible to access a custom project property from a T4 template, e.g. in an Assembly directive?

I can't manage to access such properties, e.g. defined in a <PropertyGroup> in my .csproj file. Accessing predefined VS macros (like $(SolutionDir) or $(ConfigurationName)) works though.

Thanks and best regards, Oliver

Answer 1

I solved the problem by creating a file containing the Assembly directive as a pre-build step (which can access the environment variables). In all my T4 templates I can then include this auto-generated file which loads the assembly.

Answer 2

Sure you can have the msbuild file set an environment variable which can then be pulled in via T4.

Also Use MSBuild Properties in T4 Templates there's a command-line way to do it.