Getting selected text for a combobox in iOS with C#

I am able to access the combobox and select text from the dropdown list.
In UI it displays selected text.
But programmatically, I am not able to access it via combobox.
If I try,TestAppSession.FindElementByAccessibilityId(“tbxPartnerCountry”).Click(), it returned no feedback.
Even in UI Dump View, it displays “tbxPartnerCountry” field with no elements.

How do I access it?

Many thanks