enumeration

I can't understand how to loop through an Action list. When I try it, I end up with the values being the same as the previous iteration. Here's the code (simplified example): string[] strings = { "abc", "def", "ghi" }; var actions = new List<Action>(); foreach (string str in strings) actions.Add(new Action(() => { Trace.WriteLine(str); })); foreach (var action in actions) action(); Output: ghi ghi ghi Why is it always selecting the final element in strings when it performs the action? And how can I achieve the desired output which would be: abc def ghi Your action is a closure, therefore it

The title pretty much says it all. When I'm doing some reflection through my classes, will the MemberInfo.GetCustomAttributes() method preserve the order of attributes on a member, or not? The official documentation does not say anything one way or the other. In case you're wondering why I would need this, here's the full explanation. It's lengthy and not needed for the question as it is posed now, but perhaps someone can come up with an alternative solution to the greater problem which does not involve relying on attribute enumeration order. I'm trying to make a flexible framework for an (ASP

Enum attributes are great and I want to use them. But mapping enum values to integer would make it hard to maintain both code and database. Also my database would be highly coupled with my code which I think I should consider that a bad thing. I know I can use a hash to organize an enum attribute with key/value pairs, but still it would be a lot better to be able to use an array and map to string values in database. Is there any way to map enum to strings by default? As far as I know it's not possible with Active Record's built-in enum functionality. However, there are a few popular 3rd party

I'm trying to make a helper method for listing the names of all bits set in an Enum value (for logging purposes). I want have a method that would return the list of all the Enum values set in some variables. In my example [Flag] Enum HWResponse { None = 0x0, Ready = 0x1, Working = 0x2, Error = 0x80, } I feed it 0x81, and it should provide me with a IEnumerable<HWResponse> containing {Ready, Error} . As I didn't find a simpler way, I tried to write the code below, but I can't make it compile. public static IEnumerable<T> MaskToList<T>(Enum mask) { if (typeof(T).IsSubclassOf(typeof(Enum)) ==