migueldeicaza/MonoTouch.Dialog — pull request #162 by HermanSchoenfeld (2012-11-29 03:56:28+00:00)
Title: Added optional explicit summary to RootElement.

An explicit sumary may be useful for an application that may show a
derivative value (determined by a business rule) on the root element
summary as opposed to a direct binding to a child element value.

In my case I want to show an appointment by

[Customer name StartTime - ToTime >]

which requires the summary value be explicitly given to the root element.