Hello: A TimeSheetActivity class has a collection of Allocations. An Allocation is a value object that is used by other objects in the domain as well, looking something like this: public class Allocation : ValueObject { public virtual StaffMember StaffMember { get; private set; } public virtual TimeSheetActivity Activity { get;...
I am looking for a way to store a key-value pair in the application settings. From what I have found, key-value pair dictionaries are not serializable, and therefore cannot be stored in the application settings. Currently I have tried all sorts of dictionaries and collections and all of them work, until I restart the application, then a...
Hi all - first post, so play nice! I have a fairly basic question about Python dictionaries. I would like to have some dict value that updates when another variable is changed (or at least recalculated when it is next called) - eg: mass = 1.0 volume = 0.5 mydict = {'mass':mass,'volume':volume} mydict['density'] = mydict['mass']/mydict[...
Ok, so I have a list of dicts: [{'name': 'johnny', 'surname': 'smith', 'age': 53}, {'name': 'johnny', 'surname': 'ryan', 'age': 13}, {'name': 'jakob', 'surname': 'smith', 'age': 27}, {'name': 'aaron', 'surname': 'specter', 'age': 22}, {'name': 'max', 'surname': 'headroom', 'age': 108}, ] and I want the 'frequency' of the items wit...
hello, I have a dictionary where each key had a list of variable length, eg: d = { 'a': [1, 3, 2], 'b': [6], 'c': [0, 0] } Is there a clean way to get a random dictionary key, weighted by the length of its value? random.choice(d.keys()) will weight the keys equally, but in the case above I want 'a' to be returned roughly half the ...
I'm currently implementing a very complex tree structure to allow for near-instant data access, instead of re-processing on each request. I'm just wondering if there is a theoretical, or practical, limit at which the size of a tree becomes too big, or a point at which a dictionary becomes too collision-filled to function correctly/quick...
I am running a server, and I would like to have a users dictionary, and give each user a specific number. Dictionary<int,ServerSideUser> users = new Dictionary<int,ServerSideUser>(); The key represents the user on the server, so when people send messages to that user, they send them to this number. I might as well have used the users ...
I'd like to store some data in Python in a similar form to a dictionary: {1:'a', 2:'b'}. Every value will be unique, not just among other values, but among keys too. Is there a simple data structure that I can use to get the corresponding object no matter if I ask using the 'key' or the 'value'? For example: >>> a = {1:'a', 2:'b'} >>> ...
I have: IDictionary<string, IDictionary<string, IList<long>>> OldDic1; (just for illustration purposes, it is instantiated and has values - somewhere else) Why can I do this: ? Dictionary<string, IDictionary<string, IList<long>>> dic1 = OldDic1 as Dictionary<string, IDictionary<string, IList<long>>>; Basically dic1 after execut...
I need to convert a python code into an equivalent java code. Python makes life very easy for the developers by providing lots of shortcut functionalities. But now I need to migrate the same to Java. I was wondering what will the equivalent of dict objects in java? I have tried using HashMap but life is hell. For starters consider this, ...
Ok, I am trying to filter a list/dictionary passed to me and "clean" it up a bit, as there are certain values in it that I need to get rid of. So, if it's looking like this: "records": [{"key1": "AAA", "key2": "BBB", "key3": "CCC", "key4": "AAA"...}] How would I quickly and easily run through it all and replace all values of "AAA" wi...
I am currently developing a program that uses C#'s Dictionary container (specifically, SortedDictionary). This container works very well for my purposes except for one specific case because I want random access. Specifically, I am generating a random position using a pseudorandom number generator and I need to be able to access that va...
I have a class like this: public class SomeClass { private const string sessionKey = "__Privileges"; public Dictionary<int, Privilege> Privileges { get { if (Session[sessionKey] == null) { Session[sessionKey] = new Dictionary<int, Privilege>(); } ...
I am trying to figure out when and why to use a Dictionary or a HashTable. I have done a bit of a search on here and have found people talking about the generic advantages of the Dictionary which I totally agree with, which leads the boxing and unboxing advantage for a slight performance gain. But I have also read the Dictionary will n...
Hello, I'm trying to bind KeyValuePair Elements from a Dictionary to a ItemsControl. My Dictionary has 15 Elements and the following code shows me 15 TextBoxes: <WrapPanel Name="PersonsWrapPanel" Grid.Row="0"> <ItemsControl ItemsSource="{Binding Persons}" > <ItemsControl.ItemsPanel> <...
I have the following in a C# class: public static readonly SortedDictionary<string, string> Fields = new SortedDictionary<string, string> { ... } I was hoping there was a way to get Intellisense to provide prompts for all the keys defined in Fields. It supplies lists of the methods and properties in the class, including t...
I realize that you cannot iterate over a Dictionary in C# and edit the underlying Dictionary as in the following example: Dictionary<Resource, double> totalCost = new Dictionary<Resource, double>(); // Populate the Dictionary in here - (not showing code). foreach (Resource resource in totalCost.Keys) { totalCost[resource] = 5; ...
I need to be able to serialize / deserialize a Dictionary to a human-readable (and if it comes down to it, human-editable) string (XML or Json preferably). I only need to work with String dictionaries, not other object types of any kind. The strings, however, are presumed to be free text, so they can have characters like single/double q...
I'm looking for a list of English dictionary words for a password application I'm working on. Ideally the list can be easily inserted to a mysql database. Any suggestions? ...
How do I "convert" a Dictionary into a sequence so that I can sort by key value? let results = new Dictionary() results.Add("George", 10) results.Add("Peter", 5) results.Add("Jimmy", 9) results.Add("John", 2) let ranking = results ??????? |> Seq.Sort ?????? |> Seq.iter (fun x -> (... some function ...)) ...