Channel 9 Forums - Tech Off - How do you output the contents of a Dictionary class?

Tech Off - How do you output the contents of a Dictionary class?

complete — Thu, 23 Aug 2012 01:44:04 GMT

This is kind of a follow up to this post:

http://channel9.msdn.com/Forums/TechOff/How-To-Modify-An-Element-in-the-Dictionary-Class

Once I have the data nice and sorted like I want it, how do I spew it back out in the nice and ordered fashion?

In C#, how do you output the contents of a Dictionary class?

Once you have loaded a Dictionary class with keys and values, how do I cycle through them and output the individual values in a foreach loop?

Tech Off - How do you output the contents of a Dictionary class?

blowdart — Thu, 23 Aug 2012 02:16:15 GMT

Something like

foreach (var key in dictionary.Keys)
{
    var value = dictionary[key];
    // Output value however you want
}

Tech Off - How do you output the contents of a Dictionary class?

felix9 — Thu, 23 Aug 2012 02:40:31 GMT

what's so difficult about foreach ?

            foreach (var i in dict) {
                var key = i.Key;
                var val = i.Value;
            }

wait a minute, you want to sort a dictionary ?? are you sure dictionary is the data structure you want ?

Tech Off - How do you output the contents of a Dictionary class?

evildictaitor — Thu, 23 Aug 2012 12:16:26 GMT

If you want to sort it, that's easy too

foreach(var key in dictionary.Keys.SortBy( ... ) )
{
var value = dictionary[key];
// output value however you want.
}

Tech Off - How do you output the contents of a Dictionary class?

William Kempf — Thu, 23 Aug 2012 12:48:18 GMT

There's a SortedDictionary that is implemented using a tree so that the dictionary is sorted by the key. There's tradeoffs between using trees and hashtables, so be sure which data structure you really want before blindly switching. With a SortedDictionary you'd just use foreach to iterate over the KeyValuePair items in the dictionary, or use the Keys or Values properties to iterate over just the key or just the value.