HashTable class should be used when the collection is large for performance reasons similarly for small collections ListDictionary class is used.HybridDictionary Class is a mix of both the worlds.HybridDictionary Class implements IDictionary by using a ListDictionary while the collection is small, and then switching to a Hashtable when the collection gets large.
[SerializableAttribute]
public class HybridDictionary : IDictionary,
ICollection, IEnumerable
This class is recommended for cases where the number of elements in a dictionary is unknown.
The constructor accepts a Boolean parameter that allows the user to specify whether the collection ignores the case when comparing strings. If the collection is case-sensitive, it uses the key's implementations of Object..::.GetHashCode and Object..::.Equals. If the collection is case-insensitive, it performs a simple ordinal case-insensitive comparison, which obeys the casing rules of the invariant culture only. By default, the collection is case-sensitive
A key cannot be nullNothingnullptra null reference (Nothing in Visual Basic), but a value can
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