Sort Three Dimensional Dictionary by value in c#

Question

I have the following three dimensional Dictionary.

class CopyDir
{
    public class MyFileInfo
    {
        public int Num{ get; set; }
        public long Size { get; set; }
    }
    public static Dictionary<string, MyFileInfo> logInfo;

I want to sort the dictionary based on size Field.

logInfo.OrderBy says Error CS1061 'Dictionary' does not contain a definition for 'OrderBy' and no extension method 'OrderBy' accepting a first argument of type 'Dictionary' could be found (are you missing a using directive or an assembly reference?)

Where are three dimensions? I only see a single linear dictionary. — Yeldar Kurmangaliyev, Nov 23 '16 at 06:42
@MohitShrivastava it says error Dictionary does not contain definition for OrderBy and no extension... — ali yami, Nov 23 '16 at 06:47
Possible duplicate of [How do you sort a dictionary by value?](http://stackoverflow.com/questions/289/how-do-you-sort-a-dictionary-by-value) — Sebi, Nov 23 '16 at 06:47

score 1 · Accepted Answer · answered Nov 23 '16 at 06:44

1

You can sort it easily using LINQ extensions. We are sorting the values of the dictionary.

var sorted = logInfo.Values.OrderBy(x=>x.Size);

answered Nov 23 '16 at 06:44

Anonymous Duck

2,942
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score 1 · Answer 2 · answered Nov 23 '16 at 06:45

If you want to represent the dictionary (e.g. print out on the console) with their values ordered, try uing Linq

   var result = logInfo
     .OrderBy(pair => pair.Value.Size)
     .ThenBy(pair => pair.Num); // in case of tie, let's order by Num

Test

   var test = result
     .Select(item => $"{item.Key,6}: Size = {item.Size,6}; Num = {item.Num,6}");

   Console.Write(string.Join(Environment.NewLine, test));

score 0 · Answer 3 · answered Nov 23 '16 at 06:45

0

This might do the trick for you

logInfo.OrderBy(x=>x.Value.Size);

answered Nov 23 '16 at 06:45

Mohit S

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score 0 · Answer 4 · answered Nov 23 '16 at 06:45

0

var sorted = logInfo.OrderBy(pair => pair.Value.Size);

answered Nov 23 '16 at 06:45

hyankov

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Sort Three Dimensional Dictionary by value in c#

4 Answers4