How to supply custom key as dictionary keys? When i execute the code: I receive int[] Keys={5567,51522,35533}; string[] values={"one","two","three"}; var dic = values.ToDictionary(key=>Keys.ToArray()); foreach (KeyValuePair<int, string> kv in dic) { Console.WriteLine("Key={0},value={1}", kv.Key, kv.Value); ...
What is the difference in Dictionary.add(key, value) and Dictionary[key] = value? I've noticed that the last version does not throw an ArgumentException when inserting a duplicate key, but is there any reason to prefer the first version? Edit: Does anyone have an authoritative source of information about this? I've tried MSDN, but it i...
I am an dictionary (Dictionary of dictionary) old_dict = { '1':{'A':1, 'check': 0, 'AA':2, 'AAA':3 , 'status':0}, '2':{'A':11,'check': 0, 'AA':22, 'AAA':33 ,'status':1}, '3':{'A':111,'check': 0, 'AA':222, 'AAA':333 ,'status':0}, '4':{'A':1111,'check': 1, 'AA':2222, 'AAA':3333 ,'status':0}, } I Want to get a new...
Consider the following code, where each key has an identical value: IDictionary<string, string> quarterbackDictionary = new Dictionary<string, string>(); quarterbackDictionary.Add("Manning", "Manning"); quarterbackDictionary.Add("Brady", "Brady"); quarterbackDictionary.Add("Rivers", "Rivers"); My question: Can I remove the redu...
I have python code that contains the following code. d = {} d[(0,0)] = 0 d[(1,2)] = 1 d[(2,1)] = 2 d[(2,3)] = 3 d[(3,2)] = 4 for (i,j) in d: print d[(i,j)], d[(j,i)] Unfortunately looping over all the keys in python isn't really fast enough for my purpose, and I would like to translate this code to C++. What is the best C++ dat...
I'm using a Dictionary<char, ulong> where the char is a obj no, & ulong is offset. Now, I need to access the Keys of Dictionary. Keys is any random number which cant predict. I am using VS-2005. I am new to C# so plz provide some code. ...
I want to store values as key,value,value pair. My data is of type Key -> int & both values -> ulong, How to initialize & fetch values of such dictionary. I am using VS-2005. If i use a class or struct then how do i fetch the values. ...
Hello, I have a "Dictionary" data base and I want to return an element from a specific location. I saw that there is "ElementAt" function but I didnt manage to use it. Why doesnt something like that work? closeHash.ElementAt<State>(i); it tells me the following error: Error 3 'System.Collections.Generic.Dictionary' does not conta...
If I have a dictionary in Python, and I iterate through it once, and then again later, is the iteration order guaranteed to be preserved given that I didn't insert, delete, or update any items in the dictionary? (But I might have done look-ups). ...
Hi, I am incredibly new to Python and I really need to be able to work this out. I want to be asking the user via raw_input what the module and grade is and then putting this into the dictionary already defined in the Student class as grades. I've got no idea what to do! Thanks in advance! students = [] # List containing all student obj...
I am trying to send a Dictonary key (which is a string) to a Javascript function. <% foreach (var field in Model.Fields) { %> <tr><td> <a href="#" onclick="javascript:EditField(<%= field.Key %>)"> <%= Html.Encode(field.Value.Name) %></a> </td><tr> <% } %> But, on the Javascript function, I get it as an ...
Hey everybody, I'm a python noob and I'm trying to write a program that will show a user a list of phone numbers called greater than X times (X input by users). I've got the program to successfully read in the duplicates and count them (the numbers are stored in a dictionary where {phoneNumber : numberOfTimesCalled}), but I need to comp...
I need to implement a function which returns a TDictionary, without specifying the exact types. The returned value could be a TDictionary<string,Integer>, TDictionary<string,string> or TDictionary<string,Boolean> Could I declare the function with TDictionary as result parameter: function GetMap: TDictionary; and then cast the return ...
I need to create a dictinary where key is string and value is Object. But I don't want exact match of the key with user provided string. Instead I want to key to contain a part of string. Let me explain by example If there is an entry in dictionary under key "Johnson" I want to be able to find value given input strings "John", "Jo". Als...
Hi, new to Python and had a question about dictionaries. I have a dictionary that I declared in a particular order and want to keep it in that order all the time. The keys/values can't really be kept in order based on their value, I just want it in the order that I declared it. So if I have the dictionary: d = {'ac':33, 'gw':20, 'ap':1...
I need a fast replacement for the System.Collections.Generic.Dictionary<TKey, TValue>. My application should be really fast. So, the replacement should support: Generics Add Get Contains ... and that's it. I don't need any support in LINQ or anything. And it should be fast. A simple code like: Stopwatch stopWatch = Stopwatch.StartN...
Newbie Alert: I'm new to Python and when I'm basically adding values to a dict, I find that when I'm printing the whole dictionary, I get the same value of something for all keys of a specific key. Seems like a pointer issue? Here's a snippet when using the event-based XML parser (SAX): Basically with every end element of "row", I'm ...
Actually, I would like to use this for logging. I want to put a dictionary into beanstalkd. Everytime someone goes into my website, I want to put a dictionary into beanstalkd, and then every night, I want a script that will get all the jobs and stick them in the database. THis will make it fast and easy. ...
Fellows: A Python dictionary is stored in no particular order (mappings have no order), e.g., >>> myDict = {'first':'uno','second':'dos','third':'tres'} myDict = {'first':'uno','second':'dos','third':'tres'} >>> myDict myDict {'second': 'dos', 'third': 'tres', 'first': 'uno'} While it is possible to retrieve a sorted list or tuple fr...
I have a list of dictionaries that have the same keys within eg: [{k1:'foo', k2:'bar', k3...k4....}, {k1:'foo2', k2:'bar2', k3...k4....}, ....] I'm trying to delete k1 from all dictionaries within the list. I tried map(lambda x: del x['k1'], list) but that gave me a syntax error. Where have I gone wrong? ...