It's crazy generic method time! Here is a method I created for fun that either returns a List<T> or a ObservableCollection<T>, depending on what you pass in via generic parameters. It creates a list of Product entity instances with some fake data.
The L stands for the type of ICollection you want to create and return. For example a List<T> or a ObservableColleciton<T>. The P stands for a Product class type. This could be replaced with any type of entity, just replace the condition of where : Product with the entity type of your choice.
You can call it using this code:
List<Product> productList = CreateProductList<List<Product>, Product>();
or
ObservableCollection<Product> productOC =
CreateProductList<ObservableCollection<Product>, Product>();
Its just for fun ... so enjoy.
1: private L CreateProductList<L, P>()
2: where P : Product, new()
3: where L : ICollection<P>, new()
4: {5: L products = new L
6: {7: new P
8: { 9: ProductId = 70,10: ProductName = "Outback Lager",
11: QuantityPerUnit = "24 - 355 ml bottles",
12: UnitsInStock = 15, 13: UnitPrice = 15, 14: UnitsOnOrder = 10, 15: ReorderLevel = 30,16: Discontinued = false
17: },18: new P
19: { 20: ProductId = 71,21: ProductName = "Flotemysost",
22: QuantityPerUnit = "10 - 500 g pkgs.",
23: UnitsInStock = 25,24: UnitPrice = (decimal)21.5,
25: UnitsOnOrder = 0, 26: ReorderLevel = 0,27: Discontinued = false
28: },29: new P
30: { 31: ProductId = 35,32: ProductName = "Steeleye Stout",
33: QuantityPerUnit = "24 - 12 oz bottles",
34: UnitsInStock = 20,35: UnitPrice = (decimal)18,
36: UnitsOnOrder = 0, 37: ReorderLevel = 15,38: Discontinued = false
39: },40: new P
41: { 42: ProductId = 53,43: ProductName = "Perth Pasties",
44: QuantityPerUnit = "48 pieces",
45: UnitsInStock = 0,46: UnitPrice = (decimal)32.80,
47: UnitsOnOrder = 0, 48: ReorderLevel = 0,49: Discontinued = true,
50: DiscontinuedDate = new DateTime(1996, 7, 4)
51: } 52: };53: return products;
54: }
