This value is used for Grouping. Until the row is grouped, the value is null. This property is needed to remember the Original group the row is inserted. The value is used to find the row view model in the items view.

public Object GroupedByValue { get; internal set; }

Public Property GroupedByValue As Object
	Get
	Friend Set

function get GroupedByValue () : Object
internal function set GroupedByValue (value : Object)