Hi,

This is a basic question but nevertheless...

I would like some clarification/explanation on the differences or relation between FileCodeModel and CodeModel interfaces.

Do they complement each other or does one have an advantage over the other?

Just how are the related?

FileCodeModel belongs to a file (EnvDTE.ProjectItem) and it allows you to examine the code elements of a file.

CodeModel belongs to a project (EnvDTE.Project) and it allows you to examine all the code elements of your project.

Depending on the needs of your add-in, you may want to use one or the other... for example, to populate the comboboxes on top of the code editor window you would use FileCodeModel, but to populate the Class View toolwindow you would use CodeModel.

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MZ-Tools: Productivity add-ins for Visual Studio: http://www.mztools.com. My blog about VS extensibility: http://msmvps.com/blogs/carlosq/