You can see what I’m trying (but failing) to do with the following code: protected T GetObject() { return new T(); } Any help would be greatly appreciated. EDIT: The context was as follows. I was playing around with a custom controller class for all controllers to derive from, with standardised methods. So in context, … Read more
The class CancellationTokenSource is disposable. A quick look in Reflector proves usage of KernelEvent, a (very likely) unmanaged resource. Since CancellationTokenSource has no finalizer, if we do not dispose it, the GC won’t do it. On the other hand, if you look at the samples listed on the MSDN article Cancellation in Managed Threads, only … Read more
I wish to say: public void Problem(Guid optional = Guid.Empty) { } But the compiler complains that Guid.Empty is not a compile time constant. As I don’t wish to change the API I can’t use: Nullable<Guid> 5 Answers 5
I am writing an HTTP server in C#. When I try to execute the function HttpListener.Start() I get an HttpListenerException saying “Access Denied”. When I run the app in admin mode in windows 7 it works fine. Can I make it run without admin mode? if yes how? If not how can I make the … Read more
Does C# 4.0 allow optional out or ref arguments? 11 Answers 11
C# 4.0 introduced a new type called ‘dynamic’. It all sounds good, but what would a programmer use it for? Is there a situation where it can save the day? 10 Answers 10
What is the difference between the below code snippets? Won’t both be using threadpool threads? For instance if I want to call a function for each item in a collection, Parallel.ForEach<Item>(items, item => DoSomething(item)); vs foreach(var item in items) { Task.Factory.StartNew(() => DoSomething(item)); } 4 Answers 4
Is there a way to use a Tuple class, but supply the names of the items in it? For example: public Tuple<int, int, int int> GetOrderRelatedIds() That returns the ids for OrderGroupId, OrderTypeId, OrderSubTypeId and OrderRequirementId. It would be nice to let the users of my method know which is which. (When you call the … Read more
I would like to dynamically add properties to a ExpandoObject at runtime. So for example to add a string property call NewProp I would like to write something like var x = new ExpandoObject(); x.AddProperty(“NewProp”, System.String); Is this easily possible? 4 Answers 4
I have following JSON string which is received from an external party. { “team”:[ { “v1″:””, “attributes”:{ “eighty_min_score”:””, “home_or_away”:”home”, “score”:”22″, “team_id”:”500″ } }, { “v1″:””, “attributes”:{ “eighty_min_score”:””, “home_or_away”:”away”, “score”:”30″, “team_id”:”600″ } } ] } My mapping classes: public class Attributes { public string eighty_min_score { get; set; } public string home_or_away { get; set; } … Read more
