If you’re comparing two lists, you should use test using collection constraints. Assert.That(actual, Is.EquivalentTo(expected)); Also, in your classes, you will need to override the Equals method, otherwise like gleng stated, the items in the list are still going to be compared based on reference. Simple override example: public class Example { public int ID { … Read more
(I assume here that Bar and Baz are both subtypes of Foo.) List<? extends Foo> means a list of elements of some type, which is a subtype of Foo, but we don’t know which type. Examples of such lists would be a ArrayList<Foo>, a LinkedList<Bar> and a ArrayList<Baz>. As we don’t know which subtype is … Read more
Try List.ofSeq in the Microsoft.FSharp.Collections namespace. # List.ofSeq : seq<‘T> -> ‘T list It’s not specifically for System.Collections.Generic.List<T>, but for IEnumerable<T> (seq<‘T> in F#) types in general, so it should still work. (It’s also not strictly built into the F# language, but neither is List<T> built into C# or VB.NET. Those are all part of … Read more
AllDogs.First(d => d.Id == “2”).Name = “some value”; However, a safer version of that might be this: var dog = AllDogs.FirstOrDefault(d => d.Id == “2”); if (dog != null) { dog.Name = “some value”; }
You have to replace the item, not the value of customListItem2. Just replace following: customListItem2 = customListItems.Where(i=> i.name == “Item 2”).First(); customListItem2 = newCustomListItem; With this: customListItem2 = customListItems.Where(i=> i.name == “Item 2”).First(); var index = customListItems.IndexOf(customListItem2); if(index != -1) customListItems[index] = newCustomListItem; Edit: As Roman R. stated in a comment, you can replace the … Read more
Try the following var list = arrayList.Cast<int>().ToList(); This will only work though using the C# 3.5 compiler because it takes advantage of certain extension methods defined in the 3.5 framework.
The easiest way to get a new list would be: List<long> unique = longs.Distinct().ToList(); Is that good enough for you, or do you need to mutate the existing list? The latter is significantly more long-winded. Note that Distinct() isn’t guaranteed to preserve the original order, but in the current implementation it will – and that’s … Read more
Give this a try: foreach (PropertyInfo propertyInfo in obj.GetType().GetProperties()) { // do stuff here } Also please note that Type.GetProperties() has an overload which accepts a set of binding flags so you can filter out properties on a different criteria like accessibility level, see MSDN for more details: Type.GetProperties Method (BindingFlags) Last but not least … Read more
Use Enum‘s static method, GetNames. It returns a string[], like so: Enum.GetNames(typeof(DataSourceTypes)) If you want to create a method that does only this for only one type of enum, and also converts that array to a List, you can write something like this: public List<string> GetDataSourceTypes() { return Enum.GetNames(typeof(DataSourceTypes)).ToList(); } You will need Using System.Linq; … Read more
I would suggest writing an extension method for this: public static IEnumerable<T> Select<T>(this IDataReader reader, Func<IDataReader, T> projection) { while (reader.Read()) { yield return projection(reader); } } You can then use LINQ’s ToList() method to convert that into a List<T> if you want, like this: using (IDataReader reader = …) { List<Customer> customers = reader.Select(r … Read more