Sort Dictionary<> on value, lookup index from key
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by paulio
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Published on 2010-03-26T15:43:45Z
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2010/03/26
15:53 UTC
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c#
Hi,
I have a Dictionary<> which I want to sort based on value so I've done this by putting the dictionary into a List<> then using the .Sort method.
I've then added this back into a Dictionary<>. Is it possible to lookup the new index/order by using the Dictionary key??
Dictionary<int, MyObject> toCompare = new Dictionary<int, MyObject>();
toCompare.Add(0, new MyObject());
toCompare.Add(1, new MyObject());
toCompare.Add(2, new MyObject());
Dictionary<int, MyObject> items = new Dictionary<int, MyObject>();
List<KeyValuePair<int, MyObject>> values = new List<KeyValuePair<int, MyObject>> (toCompare);
// Sort.
values.Sort(new MyComparer());
// Convert back into a dictionary.
foreach(KeyValuePair<int, PropertyAppraisal> item in values)
{
// Add to collection.
items.Add(item.Key, item.Value);
}
// THIS IS THE PART I CAN'T DO...
int sortedIndex = items.GetItemIndexByKey(0);
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