public void OnNavigatedTo(NavigationParameters parameters)
        {
            switch (new Random().Next() % 3)
            {
            case 0:
                Collection = OrderInfo.GenerateOrders();

                break;

            case 1:
                Collection = TwitterUser.GenerateUsers();

                break;

            case 2:
                Collection = Idol.GenerateIdols();
                break;
            }

            BindCollection?.Invoke(this, EventArgs.Empty);
        }
        public void OnNavigatedTo(NavigationParameters parameters)
        {
            var collection = new ObservableCollection <CustomTreeMapItem>
            {
                new CustomTreeMapItem()
                {
                    WeightValue = 10,
                    ImageSource = "https://pbs.twimg.com/profile_images/751091357825929216/RiXRpWA3.jpg",
                    Text        = "サンテア@三葉"
                },
                new CustomTreeMapItem()
                {
                    WeightValue = 15,
                    ImageSource = "https://pbs.twimg.com/profile_images/763183255528976385/k1LorAyM.jpg",
                    Text        = "くぅ@にゃー"
                },
                new CustomTreeMapItem()
                {
                    WeightValue = 30,
                    ImageSource = "https://pbs.twimg.com/profile_images/710273385708716032/Ikm3ox3k.jpg",
                    Text        = "masatoru@やせて調子いいです(再"
                },
                new CustomTreeMapItem()
                {
                    WeightValue = 25,
                    ImageSource = "https://pbs.twimg.com/profile_images/457720982090682368/hA3rh3Rf.png",
                    Text        = "クワーティ@求職中"
                },
                new CustomTreeMapItem()
                {
                    WeightValue = 40,
                    ImageSource = "https://pbs.twimg.com/profile_images/560648385292562432/ZILxrWU-.jpeg",
                    Text        = "三者三羊@オータガー"
                },
                new CustomTreeMapItem()
                {
                    WeightValue = 35,
                    ImageSource = "https://pbs.twimg.com/profile_images/728040828665405445/dRbYWha_.jpg",
                    Text        = "ゆうか@撤退準備中"
                },
                new CustomTreeMapItem()
                {
                    WeightValue = 40,
                    ImageSource = "https://pbs.twimg.com/profile_images/717249520220770305/t1GsZoIc.jpg",
                    Text        = "nuits.jp"
                },
                new CustomTreeMapItem()
                {
                    WeightValue = 60,
                    ImageSource = "https://pbs.twimg.com/profile_images/616293895261937664/heCywSfh.png",
                    Text        = "これがあめいの選択だよ"
                },
                new CustomTreeMapItem()
                {
                    WeightValue = 80,
                    ImageSource = "https://pbs.twimg.com/profile_images/633074634435379200/qJu6ECTX.jpg",
                    Text        = "Atsushi Eno"
                },
                new CustomTreeMapItem()
                {
                    WeightValue = 80,
                    ImageSource = "https://pbs.twimg.com/profile_images/747601253266395136/2HeCGdiG.jpg",
                    Text        = "田淵 義人@エクセルソフト"
                }
            };

            TreeMapItems = collection;

            BindCollection?.Invoke(this, EventArgs.Empty);
        }