public SampleDataSource()
        {
            String ITEM_CONTENT = String.Format("Item Content: {0}\n\n{0}\n\n{0}\n\n{0}\n\n{0}\n\n{0}\n\n{0}",
                        "Curabitur class aliquam vestibulum nam curae maecenas sed integer cras phasellus suspendisse quisque donec dis praesent accumsan bibendum pellentesque condimentum adipiscing etiam consequat vivamus dictumst aliquam duis convallis scelerisque est parturient ullamcorper aliquet fusce suspendisse nunc hac eleifend amet blandit facilisi condimentum commodo scelerisque faucibus aenean ullamcorper ante mauris dignissim consectetuer nullam lorem vestibulum habitant conubia elementum pellentesque morbi facilisis arcu sollicitudin diam cubilia aptent vestibulum auctor eget dapibus pellentesque inceptos leo egestas interdum nulla consectetuer suspendisse adipiscing pellentesque proin lobortis sollicitudin augue elit mus congue fermentum parturient fringilla euismod feugiat");

            var group1 = new SampleDataGroup(
                    "Group-1",
                    "Flowers and Plants",
                    "Beautiful floral patterns from Mother Nature.",
                    "Assets/FlowerGroup.jpg",
                    "Group Description: Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vivamus tempor scelerisque lorem in vehicula. Aliquam tincidunt, lacus ut sagittis tristique, turpis massa volutpat augue, eu rutrum ligula ante a ante");
            group1.Items.Add(new SampleDataItem("Group-1-Item-1",
                    "Lily",
                    "A little lily of the valley.",
                    "Assets/Flower02.jpg",
                    "Item Description: Pellentesque porta, mauris quis interdum vehicula, urna sapien ultrices velit, nec venenatis dui odio in augue. Cras posuere, enim a cursus convallis, neque turpis malesuada erat, ut adipiscing neque tortor ac erat.",
                    ITEM_CONTENT,
                    group1));
            group1.Items.Add(new SampleDataItem("Group-1-Item-2",
                    "Rose",
                    "Show your love.",
                    "Assets/Flower03.jpg",
                    "Item Description: Pellentesque porta, mauris quis interdum vehicula, urna sapien ultrices velit, nec venenatis dui odio in augue. Cras posuere, enim a cursus convallis, neque turpis malesuada erat, ut adipiscing neque tortor ac erat.",
                    ITEM_CONTENT,
                    group1));
            group1.Items.Add(new SampleDataItem("Group-1-Item-3",
                    "Daisy",
                    "Keep it daisy.",
                    "Assets/Flower04.jpg",
                    "Item Description: Pellentesque porta, mauris quis interdum vehicula, urna sapien ultrices velit, nec venenatis dui odio in augue. Cras posuere, enim a cursus convallis, neque turpis malesuada erat, ut adipiscing neque tortor ac erat.",
                    ITEM_CONTENT,
                    group1));
            group1.Items.Add(new SampleDataItem("Group-1-Item-4",
                    "Lotus",
                    "Zen as a lotus flower.",
                    "Assets/Flower05.jpg",
                    "Item Description: Pellentesque porta, mauris quis interdum vehicula, urna sapien ultrices velit, nec venenatis dui odio in augue. Cras posuere, enim a cursus convallis, neque turpis malesuada erat, ut adipiscing neque tortor ac erat.",
                    ITEM_CONTENT,
                    group1));
            group1.Items.Add(new SampleDataItem("Group-1-Item-5",
                    "Kusudama",
                    "A taste of exotism.",
                    "Assets/Flower06.jpg",
                    "Item Description: Pellentesque porta, mauris quis interdum vehicula, urna sapien ultrices velit, nec venenatis dui odio in augue. Cras posuere, enim a cursus convallis, neque turpis malesuada erat, ut adipiscing neque tortor ac erat.",
                    ITEM_CONTENT,
                    group1));
            this.AllGroups.Add(group1);

            var group2 = new SampleDataGroup(
                    "Group-2",
                    "Animals",
                    "Wondrous creatures of the wild.",
                    "Assets/LightGray.png",
                    "Group Description: Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vivamus tempor scelerisque lorem in vehicula. Aliquam tincidunt, lacus ut sagittis tristique, turpis massa volutpat augue, eu rutrum ligula ante a ante");
            group2.Items.Add(new SampleDataItem("Group-2-Item-1",
                    "Anteater",
                    "Strange but efficient.",
                    "Assets/anteater.png",
                    "Item Description: Pellentesque porta, mauris quis interdum vehicula, urna sapien ultrices velit, nec venenatis dui odio in augue. Cras posuere, enim a cursus convallis, neque turpis malesuada erat, ut adipiscing neque tortor ac erat.",
                    ITEM_CONTENT,
                    group2));
            group2.Items.Add(new SampleDataItem("Group-2-Item-2",
                    "Horse",
                    "Gangnam style anyone?",
                    "Assets/horse.png",
                    "Item Description: Pellentesque porta, mauris quis interdum vehicula, urna sapien ultrices velit, nec venenatis dui odio in augue. Cras posuere, enim a cursus convallis, neque turpis malesuada erat, ut adipiscing neque tortor ac erat.",
                    ITEM_CONTENT,
                    group2));
            group2.Items.Add(new SampleDataItem("Group-2-Item-3",
                    "Deer",
                    "The king of the forest.",
                    "Assets/deer.png",
                    "Item Description: Pellentesque porta, mauris quis interdum vehicula, urna sapien ultrices velit, nec venenatis dui odio in augue. Cras posuere, enim a cursus convallis, neque turpis malesuada erat, ut adipiscing neque tortor ac erat.",
                    ITEM_CONTENT,
                    group2));
            group2.Items.Add(new SampleDataItem("Group-2-Item-3",
                    "Flamingo",
                    "Nice and elegant.",
                    "Assets/flamingo.png",
                    "Item Description: Pellentesque porta, mauris quis interdum vehicula, urna sapien ultrices velit, nec venenatis dui odio in augue. Cras posuere, enim a cursus convallis, neque turpis malesuada erat, ut adipiscing neque tortor ac erat.",
                    ITEM_CONTENT,
                    group2));
            group2.Items.Add(new SampleDataItem("Group-2-Item-3",
                    "llama",
                    "Beware of the spitting.",
                    "Assets/llama.png",
                    "Item Description: Pellentesque porta, mauris quis interdum vehicula, urna sapien ultrices velit, nec venenatis dui odio in augue. Cras posuere, enim a cursus convallis, neque turpis malesuada erat, ut adipiscing neque tortor ac erat.",
                    ITEM_CONTENT,
                    group2));
            group2.Items.Add(new SampleDataItem("Group-2-Item-3",
                    "Parrot",
                    "Colorful and joyful.",
                    "Assets/Animal06.png",
                    "Item Description: Pellentesque porta, mauris quis interdum vehicula, urna sapien ultrices velit, nec venenatis dui odio in augue. Cras posuere, enim a cursus convallis, neque turpis malesuada erat, ut adipiscing neque tortor ac erat.",
                    ITEM_CONTENT,
                    group2));
            group2.Items.Add(new SampleDataItem("Group-2-Item-3",
                    "Piguin",
                    "King of the ice.",
                    "Assets/Animal07.png",
                    "Item Description: Pellentesque porta, mauris quis interdum vehicula, urna sapien ultrices velit, nec venenatis dui odio in augue. Cras posuere, enim a cursus convallis, neque turpis malesuada erat, ut adipiscing neque tortor ac erat.",
                    ITEM_CONTENT,
                    group2));
            group2.Items.Add(new SampleDataItem("Group-2-Item-3",
                    "Seal",
                    "Ball player.",
                    "Assets/Animal08.png",
                    "Item Description: Pellentesque porta, mauris quis interdum vehicula, urna sapien ultrices velit, nec venenatis dui odio in augue. Cras posuere, enim a cursus convallis, neque turpis malesuada erat, ut adipiscing neque tortor ac erat.",
                    ITEM_CONTENT,
                    group2));

            this.AllGroups.Add(group2);

            var group3 = new SampleDataGroup(
                    "Group-3",
                    "Shapes",
                    "Simple shapes",
                    "Assets/MediumGray.png",
                    "Group Description: Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vivamus tempor scelerisque lorem in vehicula. Aliquam tincidunt, lacus ut sagittis tristique, turpis massa volutpat augue, eu rutrum ligula ante a ante");
            group3.Items.Add(new SampleDataItem("Group-3-Item-1",
                    "Rectangle",
                    "Rectangle is clean and neat.",
                    "Assets/Shape01.jpg",
                    "Item Description: Pellentesque porta, mauris quis interdum vehicula, urna sapien ultrices velit, nec venenatis dui odio in augue. Cras posuere, enim a cursus convallis, neque turpis malesuada erat, ut adipiscing neque tortor ac erat.",
                    ITEM_CONTENT,
                    group3));
            group3.Items.Add(new SampleDataItem("Group-3-Item-2",
                    "Square",
                    "Perfection in an origami.",
                    "Assets/Shape02.jpg",
                    "Item Description: Pellentesque porta, mauris quis interdum vehicula, urna sapien ultrices velit, nec venenatis dui odio in augue. Cras posuere, enim a cursus convallis, neque turpis malesuada erat, ut adipiscing neque tortor ac erat.",
                    ITEM_CONTENT,
                    group3));
            group3.Items.Add(new SampleDataItem("Group-3-Item-3",
                    "Hexagon",
                    "French touch.",
                    "Assets/Shape03.jpg",
                    "Item Description: Pellentesque porta, mauris quis interdum vehicula, urna sapien ultrices velit, nec venenatis dui odio in augue. Cras posuere, enim a cursus convallis, neque turpis malesuada erat, ut adipiscing neque tortor ac erat.",
                    ITEM_CONTENT,
                    group3));
            group3.Items.Add(new SampleDataItem(
                    "Group-3-Item-4",
                   "Complex",
                   "You must really love them!",
                   "Assets/Shape04.jpg",
                   "Item Description: Pellentesque porta, mauris quis interdum vehicula, urna sapien ultrices velit, nec venenatis dui odio in augue. Cras posuere, enim a cursus convallis, neque turpis malesuada erat, ut adipiscing neque tortor ac erat.",
                   ITEM_CONTENT,
                   group3));
            this.AllGroups.Add(group3);
        }
 public SampleDataItem(String uniqueId, String title, String subtitle, String imagePath, String description, String content, SampleDataGroup group)
     : base(uniqueId, title, subtitle, imagePath, description)
 {
     this._content = content;
     this._group = group;
 }