mrichmon
asked on
Sort a dictionary
I have a hashed structure that is bound to a repeater, that I would like to sort on display:
Dictionary<Level, Dictionary<ControlCode, Dictionary<Person, List<Roles>>>>
It is bound into a repeater with nested repeaters - and displays appropriately, however unsorted. I would like it to be sorted by level, then by the Description property of the ControlCode, then by the LastName of the Person.
I am having trouble with sorting the ControlCode level.
The ControlCode class does not implement iComparable - and even if it did it would most likely sort by the code - where in this case I need to sort by the Description. (Otherwise I could change to SortedDictionary). I thought that I should be able to use LINQ to sort this (perhaps the OrderBy), but cannot seem to figure it out.
Based on the way the data gets into the structure - I cannot sort going in - it needs to be sorted once the structure is complete.
Any help?
Dictionary<Level, Dictionary<ControlCode, Dictionary<Person, List<Roles>>>>
It is bound into a repeater with nested repeaters - and displays appropriately, however unsorted. I would like it to be sorted by level, then by the Description property of the ControlCode, then by the LastName of the Person.
I am having trouble with sorting the ControlCode level.
The ControlCode class does not implement iComparable - and even if it did it would most likely sort by the code - where in this case I need to sort by the Description. (Otherwise I could change to SortedDictionary). I thought that I should be able to use LINQ to sort this (perhaps the OrderBy), but cannot seem to figure it out.
Based on the way the data gets into the structure - I cannot sort going in - it needs to be sorted once the structure is complete.
Any help?
Sreedhar Vengala
take a look at http://stackoverflow.com/questions/451717/how-do-i-convert-from-a-dictionary-to-a-sorteddictionary-using-linq-in-c
Can't you create a new class which inherits from ControlCode and implement IComparable for it. That way you can fully customize how they're compared which allows you to simply use sorted dictionary.
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ASKER
Xcone,
>>Can't you create a new class which inherits from ControlCode and implement IComparable for it
In this case no, however, I like the second idea - I did not realize that there was a constructor for a SortedDictionary that took in a custom comparer as a parameter. That works great! I guess I should have looked at the SortedDictionary documentation ;o)
>>Can't you create a new class which inherits from ControlCode and implement IComparable for it
In this case no, however, I like the second idea - I did not realize that there was a constructor for a SortedDictionary that took in a custom comparer as a parameter. That works great! I guess I should have looked at the SortedDictionary documentation ;o)
ASKER
Sorry - wrong comment got marked as answer, - I have asked it be corrected so Xcone you will get the points/accepted solution.
Thanks again - actually that gave me a way to do something much fancier than I originally thought I could!
Thanks again - actually that gave me a way to do something much fancier than I originally thought I could!