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Why HashTable is used?

Posted By :Abhisek Panda     Posted Date :December 25, 2009    Points :10   Category :.NET Framework 
It is a .NET class that allows an element to be accessed using a unique key. It is mainly used in database programming.

You can also find related Interview Question to Why HashTable is used?  below: 

what is the difference between sortedList and Hashtable ?

  
Hash table and sorted list classes manage a collection of key value pairs the only difference between them is that in sorted list ,the values are sorted by keys and accesible by key as well as by index. (More...)

Why do I get errors when I try to serialize a Hashtable?

  
XmlSerializer will refuse to serialize instances of any class that implements IDictionary, e.g. Hashtable. SoapFormatter and BinaryFormatter do not have this restriction. (More...)

What's difference between HashTable and ArrayList ?

  
Array can be accessed using INDEX value. Hashtable provides way of accessing the index using a KEY value, thus removing the INDEX problem. (More...)

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