We can use the OrderBy method to sort a SortedDictionary items. The OrderBy method takes a key name that items will be sorted based on. The following code snippet sorts a SortedDictionary items based on a Key.
AuthorList.OrderBy(key => key.Key)
The following code snippet sorts a SortedDictionary by keys and by values.
public void SortSortedDictionary()
{
// Create a SortedDictionary with string key and Int16 value pair
SortedDictionary<string, Int16> AuthorList = new SortedDictionary<string, Int16>();
AuthorList.Add("Mahesh Chand", 35);
AuthorList.Add("Mike Gold", 25);
AuthorList.Add("Praveen Kumar", 29);
AuthorList.Add("Raj Beniwal", 21);
AuthorList.Add("Dinesh Beniwal", 84);
// Sorted by Key
Console.WriteLine("Sorted by Key");
Console.WriteLine("=============");
foreach (KeyValuePair<string, Int16> author in AuthorList.OrderBy(key => key.Key))
{
Console.WriteLine("Key: {0}, Value: {1}", author.Key, author.Value);
}
Console.WriteLine("=============");
// Sorted by Value
Console.WriteLine("Sorted by Value");
Console.WriteLine("=============");
foreach (KeyValuePair<string, Int16> author in AuthorList.OrderBy(key => key.Value))
{
Console.WriteLine("Key: {0}, Value: {1}", author.Key, author.Value);
}
}
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casidofuPosted Oct 5, 2023, 2:22 PM
There's no need to sort a SortedDictionary directly on the key. It can accept an IComparer implementation at the constructor for customizing the comparison logic for the sort it does internally.