Is VS what's the name of the dropdowns with classes, functions, etc under the tabs?

I am developing an extension, and I need to read the value of these two dropdowns, but I don't know what they are called. Any idea or guess?

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How to: Navigate and Search in Visual C# Express in MSDN Library (local) at ms-help://MS.VSCC.v90/MS.MSDNQTR.v90.en/dv_csexpresscon/html/02412643-f727-4960-bf25-7ef80bda8b25.htm

The Navigation bar consists of two combo boxes named Types and Members displayed at the top of the Code Editor...

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I don't know the names of the combos but the bar they're both in is called the Navigation Bar I think.