Where the action should be grouped. Grouping is typically based on a priority, but can be a unique named group you define. If your action is a primary action for the element it is attacted to you should ensure the ActionGroupPriorty is set to PrimaryHigh. The lower priority, the lower in a menu list the action will appear.

public ActionGroup ActionGroup { get; set; }

Public Property ActionGroup As ActionGroup
	Get
	Set

public:
property ActionGroup^ ActionGroup {
	ActionGroup^ get ();
	void set (ActionGroup^ value);
}