AllowSummariesResolved returns the resolved value based on FieldSettings' FieldSettings.AllowSummaries property settings. FieldSettings object is exposed on Field (FieldSettings), FieldLayout (FieldLayout.FieldSettings) and Field (Settings).
To actually set whether summaries are allowed, use the FieldSettings' FieldSettings.AllowSummaries and FieldSettings.SummaryUIType properties.
To specify summary calculations to perform, use the FieldLayout's property.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2