This code compiles but looks very strange. I have a typical and simple parent/child relationship here which is implemented using generics in a very strange way. But I can't seem to find any other way of doing it. class SampleObject<T> //I don't want to make this a generic but am forced to { //The SampleContainer this object is in //...
Scenario: I have a generic list of Audits and a generic list of AuditImages. These two lists have been compiled from database tables. As a result of this, ONE AuditImage can have MANY Audits. As you will see below, the classes that the tables map to are joined by a foreign key relationship "ImageID" when they are in the database, howeve...
Hi, I am new to spring MVC.In my application I need to bind dynamically generated textbox contents to a list of beans dynamically.I went through the spring mvc book for binding to lists.But before binding, we must not only initialize the collection, but populate it with objects. In my case I dont know the size of the list initially. ...
foreach (Item i in Items) { do something with i; do another thing with i (but not if last item in collection); } ...
I am trying to fetch a list from my database fulfilling a given criterion. The statement I am using is : var products = session .CreateCriteria(typeof(Product)) .Add(Restrictions.Eq("Category", category)) .List(); Where, product is my Domain object sess...
I have a list in Python that I generate as part of the program. I have a strong assumption that these are all different, and I check this with an assertion. This is the way I do it now: If there are two elements: try: assert(x[0] != x[1]) except: print debug_info raise Exception("throw to caller") If there are three: t...
I am a newbie to Python. Consider the function str.partition() which returns a 3-tuple. If I am interested in only elements 0 and 2 of this tuple, what is the best way to pick only certain elements out of such a tuple? I can currently do either: # Introduces "part1" variable, which is useless (part0, part1, part2) = str.partition(' ') ...
I am looking for a way to check if 2 permutations (represented by lists) are of the same parity. Note that I am not interested if they are even or odd parity, just the equality. I am new to Python and my naive solution is given below as a reply. I am looking forward to Python gurus showing me some cool tricks to achieve the same in less...
Though for-each loop has many advantages but the problem is ,it doesn't work when you want to Filter(Filtering means removing element from List) a List,Can you please any replacement as even traversing through Index is not a good option.. ...
I've been adding a few handy methods to some of the F# modules such as List. type Microsoft.FSharp.Collections.FSharpList<'a> with //' static member iterWhile (f:'a -> bool) (ls:'a list) = let rec iterLoop f ls = match ls with | head :: tail -> if f head then iterLoop f tail | _...
Why is list.size()>0 slower than list.isEmpty() in Java? On other words why isEmpty() is preferable over size()>0? When I look at the implementation in ArrayList, then it looks like the speed should be the same: ArrayList.size() /** * Returns the number of elements in this list. * * @return the number of elements in...
I have a C# class to store my User details and another for storing JOBS details.The scenario is like each User can have multiple JOBS. I have UserId,UserName,Age etc as my User class properties. Now i want to associate the of JOBS class objects to a property called JOBS so that i can store multiple jobs associated with this user to that...
Tackling a few puzzle problems on a quiet Saturday night (wooohoo... not) and am struggling with sort(). The results aren't quite what I expect. The program iterates through every combination from 100 - 999 and checks if the product is a palindome. If it is, append to the list. I need the list sorted :D Here's my program: list = [] #lis...
Take the following code: foo <- list() foo[[1]] <- list(a=1, b=2) foo[[2]] <- list(a=11, b=22) foo[[3]] <- list(a=111, b=222) result <- do.call(rbind, foo) result[,'a'] In this case, result[,'a'] shows a list. Is there a more elegant way such that result is a "regular" matrix of vectors? I imagine there are manual ways of going abou...
Hi, I'm pretty new to WordPress but have spent some 50 odd hours studying up on it, trying things out and such and have the feeling I got a pretty good handle on it now.. However the one thing I simply cannot get working is to have a page spit out a list of posts of a certain category. Here is my example: http://dev.jannisgundermann.c...
Hi! I have to sort a python list, with multiple attributes. I can do that in ascending order for ALL attributes easily with L.sort(key=operator.attrgetter(attribute)).... but the problem is, that I have use mixed configurations for ascending/descending... I have to "imitate" a bit the SQL Order By where you can do something like "nam...
I am powershell newbie. I used a sample script and made substitute from get-item to get-content in the first line. The modified script looks like below: $file = get-content "c:\temp\test.txt" if ($file.IsReadOnly -eq $true) { $file.IsReadOnly = $false } So in essence I am trying to action items contained in test.txt stored as UNC pat...
Hi, I'm new to winforms (using C#) and would appreciated a headsup re the winforms control/approach to use to quickly provide visual editing of my List collection. So the in-memory collection I have is below. So my requirements were basically to: provide a means on my winform form, to allow add/view/edit of the List of ConfigFileDTO...
I need a dictionary-like data structure that stores information as follows: key [value 1] [value 2] ... I need to be able to look up a given value by supplying the key and the value I desire (the number of values is constant). A hash table is the first thing that came to my mind but I don't think it can be used for multiple values. ...
What is an efficient way to find the most common element in a Python list? My list items may not be hashable so can't use a dictionary. Also in case of draws the item with the lowest index should be returned. Example: >>> most_common(['duck', 'duck', 'goose']) 'duck' >>> most_common(['goose', 'duck', 'duck', 'goose']) 'goose' ...