How to sort such a dictionary?

Question

C++ / C#

There is a class:

public class ClassKey
  {
    public int Version { get; set; }
    public DateTime Date { get; set; }
  }

And there is a completed dictionary:

Dictionary<string, ClassKey> dt = new Dictionary<string, ClassKey>();

Is there any way to group it by version and sort by date?

Answer 1

Based on the answer of Dmitry Kovalsky , the following came out. Maybe someone will come in handy.

foreach (var tmp in dt.OrderBy(c => c.Value.Date).OrderBy(c => c.Value.Version))
      {
        listBox2.Items.Add(string.Format("{0} _ {1} _ {2}", tmp.Key, tmp.Value.Version, tmp.Value.Date));
      }

First we sort by date, then we sort the result by versions. What was needed. Grouping is not needed.