ArcGISPortalViewer.Model.SearchService.GenerateFavoriteQueryFromIDs C# (CSharp) Method

        private static string GenerateFavoriteQueryFromIDs(IList<string> favoriteItemIDs)
        {
            if (favoriteItemIDs == null || favoriteItemIDs.Count <= 0)
                return "";

            var queryString = "";
            for (var i = 0; i < favoriteItemIDs.Count; i++)
            {
                queryString = (i == 0) ?
                    String.Format("id: {0}" , favoriteItemIDs[i]) :
                    String.Format("{0} OR id: {1}", queryString, favoriteItemIDs[i]);
            }
            return queryString;
        }