public void CreateCats() { var query = _realmService.QueryAll <Cat>(); var anyCats = query.Any(); if (!anyCats) { // CREATE SOME CATS!!!!!! var cats = new List <Cat>(); var cat1 = new Cat { Id = "cat1", Name = "Mr. Tiddles", ImageUrl = "https://i.ytimg.com/vi/tntOCGkgt98/maxresdefault.jpg" }; var cat2 = new Cat { Id = "cat2", Name = "Fluff", ImageUrl = "https://img1.wsimg.com/fos/sales/cwh/8/images/cats-with-hats-shop-06.jpg" }; var cat3 = new Cat { Id = "cat3", Name = "Rusty", ImageUrl = "https://s-media-cache-ak0.pinimg.com/736x/07/c3/45/07c345d0eca11d0bc97c894751ba1b46.jpg" }; var cat4 = new Cat { Id = "cat4", Name = "Baubles", ImageUrl = "https://s-media-cache-ak0.pinimg.com/736x/92/9d/3d/929d3d9f76f406b5ac6020323d2d32dc.jpg" }; var cat5 = new Cat { Id = "cat5", Name = "Grumpy Cat", ImageUrl = "https://pbs.twimg.com/profile_images/378800000532546226/dbe5f0727b69487016ffd67a6689e75a.jpeg" }; var cat6 = new Cat { Id = "cat6", Name = "Bigglesworth", ImageUrl = "http://www.cats.org.uk/uploads/images/featurebox_sidebar_kids/shop6.jpg" }; var cat7 = new Cat { Id = "cat7", Name = "Snuffles", ImageUrl = "http://www.rd.com/wp-content/uploads/sites/2/2016/02/12-13-things-you-didnt-know-about-cats-no-chocolate.jpg" }; var cat8 = new Cat { Id = "cat8", Name = "Fatcat", ImageUrl = "https://s-media-cache-ak0.pinimg.com/736x/35/8c/57/358c57c204a2fec21fa50b917a0728aa.jpg" }; cats.Add(cat1); cats.Add(cat2); cats.Add(cat3); cats.Add(cat4); cats.Add(cat5); cats.Add(cat6); cats.Add(cat7); cats.Add(cat8); _realmService.AddOrUpdate(cats); } }