Thank you for contacting us.
You can handle the Opening event of the context menu. In the event arguments there is the FocusedElement property which will give you the DataBoundListBoxItem instance that triggered the event. You can store this reference and use it upon the Tapped event of each item.
Something like this:
sender, ContextMenuOpeningEventArgs e)
.openItem = e.FocusedElement
I hope this helps. Let me know whether I can assist you in some other way.
the Telerik team
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