How can I create a common post build event used by multiple csproj projects

Question

I have several Visual Studio 2010 C# projects. I'd like to have them all have the same post build event. Basically I want them to copy their output somewhere. I think I can do this using an <import> statement in each csproj file, but I can't seem to figure out the properties/targets and such that I need in the imported file. Do you have any suggestions?

EDIT: I've tried the following but can't get it to work. This is what the Imports.props file looks like:

<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
    <Target Name="AfterBuild">
        <Message Text="Here I come to save the day!" />
    </Target>
</Project>

I then Include it in the csproj files:

<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
    <Import Project="Imports.props" />
    ...

I've also tried this as Imports.props:

<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
    <PropertyGroup>
        <PostBuildEvent>echo Here I come to save the day!</PostBuildEvent>
    </PropertyGroup>
</Project>

Answer 1

Make sure that you import your targets file after the Microsoft.Common.targets import, as that file defines an empty AfterBuild target, which would override the definition in your targets file.

Answer 2

<import> in each projectfile and a <AfterBuild> target in your common build file.

CommonTargets http://msdn.microsoft.com/en-us/library/ms171464.aspx

TargetOrder http://msdn.microsoft.com/en-us/library/ms171462.aspx