To browse .NET code dependencies, you can use the capabilities of the tool NDepend. The tool proposes:
For example such query can look like:
from m in Methods
let depth = m.DepthOfIsUsing("NHibernate.NHibernateUtil.Entity(Type)")
where depth >= 0 && m.IsUsing("System.IDisposable")
orderby depth
select new { m, depth }
And its result looks like: (notice the code metric depth, 1 is for direct callers, 2 for callers of direct callers...) (notice also the Export to Graph button to export the query result to a Call Graph)
The dependency graph looks like:
The dependency matrix looks like:
The dependency matrix is de-facto less intuitive than the graph, but it is more suited to browse complex sections of code like:
Disclaimer: I work for NDepend