How do you display the relationships that connect ClassA to ClassX using NDepend?

Question

BACKGROUND

When driving through an unknown city, it is often preferable to have a map that can help guide you to your destination. Similarly, when looking at legacy code for the first time it is often preferable to have a diagram that can outline relationships within the application.

EXAMPLE

In this case, I have been asked to look at a legacy {data-centric} application to better understand how it manages it's database connections. Or more specifically, I am trying to generate a class diagram that outlines the relationships between Program and System.Data.Common.DbConnection.

THE PROBLEM

I am relatively new to NDepend, and am having difficulty writing the appropriate CQLinq statement. Unfortunately, the following only displays assemblies and their relationships to each other. How would I modify this query to display the relationships between two types?

Any insight you can provide would be greatly appreciated!

from t in Assemblies
where t.DepthOfIsUsedBy("MyCompany.MyProject.MyNamespace.Program") >=0 &&
t.DepthOfIsUsing("System.Data.Common.DbConnection") >=0
select new { t, t.NbLinesOfCode}

Answer 1

from t in Assemblies means that t is an assembly.

You should try from t in Application.Types:

// <Name>Display relationships between two types</Name>
from t in Application.Types
where t.DepthOfIsUsedBy("Company.Project.NamespaceA") >=0 &&
t.DepthOfIsUsing("Company.Project.NamespaceZ") >=0
select new { t, t.NbLinesOfCode}