CODEWITHSUNDEEP
c#dictionaryunity-game-engine
user3618774
user3618774

Reputation:

Traversing through dictionary keys

Is there a way to get a location of a key in a dictionary?

for example, if my keys are 23, 44, 56, 66 and I want the get they key at location 0 it would return me 23. Or key at location 2 would return 56.

Are dictionary keys traversable like this?

Upvotes: 0

Views: 143

Answers (2)

Tyress
Tyress

Reputation: 3653

From MSDN:

For purposes of enumeration, each item in the dictionary is treated as a KeyValuePair structure representing a value and its key. The order in which the items are returned is undefined.

So the indices will not be consistent, if ever you did get it.

I suggest you use a List<T> using something like a KeyValuePair<TKey,TValue> or a Class, if you can.

Upvotes: 0

DotNet NF
DotNet NF

Reputation: 833

So yes Dictionary's are able to be iterated through because they are a type of ICollection.

If you really wanted to just find a random key you could just create a random number and use

 var randomNumber = 5; (or however you want to get a random number)
 var randomKey = yourDictionary.ElementAt(randomNumber).Key;

So this will get the key in the sixth position of the dictionary, and if you wanted you could also get the value by just saying .Value;

Upvotes: 2

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