|
Hello :)
Just as in title. I would like to use dict as a key in another dict. Something similar to python. I tried this but it gives me errors.
Dictionary<Dictionary<string, string>, int> dict = new Dictionary<Dictionary<string, string...
Answer Snippets (Read the full thread at stackoverflow):
Class ComplexKey :....
You shouldn't be using mutable types as dictionary keys in the first place from Dictionary.
The correct, what you asked going to far down this path .
It's because the "dict["abc"] is not dictionary, but "string".
|
|
I want users of my LayoutManager class to be able to write this:
LayoutManager layoutManager = new LayoutManager(); layoutManager.AddMainContentView("customers", "intro", new View { Title = "Customers Intro", Content = "This is customers intro." });
But...
Started by Edward Tanguay on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
If possible, use a tuple-key rather than nested dictionaries - the only issue.
A new empty Dictionary.
|
|
Here is my problem :
I have the following dictionary :
Dictionary<double, Dictionary<double, List<string>>>;
With LINQ I would like to first
1) Sort this dictionary in descending order, keep the first 20, and work with the second dictionary...
Started by Bernard Larouche on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
Http://stackoverflow.com/questions/289/how-do-you-sort-a-c-dictionary.
dictionary sorting strategies.
|
Ask your Facebook Friends
|
I'm writing an application in Python (2.6) that requires me to use a dictionary as a data store.
I am curious as to whether or not it is more memory efficient to have one large dictionary, or to break that down into many (much) smaller dictionaries, then...
Started by Brandon K on
, 8 posts
by 8 people.
Answer Snippets (Read the full thread at stackoverflow):
Three suggestions:
Use one dictionary....
From the way you worded your second sentence, it sounds like the one big dictionary.
Remember, if you're is just noise.
To reason that one large dictionary will use less ram than multiple smaller ones.
|
|
I'm currently using the following code to achieve this, but is seems there should be something better... suggestions? It just seems to me there should be a way to skip the foreach...
Dictionary<string,string> getValidIds(Dictionary<string,string...
Started by Lokkju on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
I would instead iterate over the ids first; since ... .
); }
Interestingly, if you enumerate over the dictionary (length N) first and check the list (length, but that seems redundant since we already have a (pre-hashed) dictionary available.
|
|
I'm trying to find a LINQ oneliner that takes a Dictionary<String,Int> and returns a Dictionary<String,SomeEnum>....it might not be possible, but would be nice.
Any suggestions?
EDIT: ToDictionary() is the obvious choice, but have any of you...
Started by FlySwat on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
Dictionary<String, Int32>(); // Fill input dictionary Dictionary<String, SomeEnum> output.
|
|
I'm using an API that returns a key-value collection as a Dictionary<string, string> . I need to convert that to a Dictionary<string, object> . I have a sense that there should be a way to do this conversion/mapping without "manually" looping...
Started by Ates Goral on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
It like:
new Dictionary<string, string>().ToDictionary();
No looping, maps a Dictionary{T, U} to Dictionary{T, object} in constant time:
class DictionaryWrapper<T, U> : IDictionary<T }
With a few more generic params, you....
|
|
I have a string, produced from a dictionary. It looks like this:
( { "advanced_info" = ""; "allergy_info" = ""; "appointment_info" = ""; "blood_group" = ddfgrf; bmi = "0. "; city = ""; country = ""; dob = 2010-01-18 16:17:50 +0530; "emergency_info" = ...
Started by goeff27 on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
The NSArray/dictionary needs to have.
See NSPropertyListSerialization.
I think string), then read it back in.
Or dictionary.
But the best thing to do would be not to lose the array in the first place .
|
|
Hi all,
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...
Started by Jon on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
I would never use HashTable since Dictionary costs you....
Dictionary, however is a generic class and gives you strong typing benefits.
The primary structural difference between them is that Dictionary relies on chaining.
Performance.
|
|
Let's say I have a pretty complex dictionary.
{'fruit':'orange','colors':{'dark':4,'light':5}}
Anyway, my objective is to scan every key in this complex multi-level dictionary. Then, append "abc" to the end of each key.
So that it will be:
{'fruitabc'...
Started by alex on
, 8 posts
by 8 people.
Answer Snippets (Read the full thread at stackoverflow):
}})
This will append "abc" to each key in the dictionary and any value that is a dictionary.
|
