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Convert Hashtable Keys or Values into an ArrayList

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The simple way to convert Hashtable keys or values into an ArrayList is to use a constructor that takes a list of values. The Hashtable.Keys and Hashtable.Values properties both return a System.Collections.ICollection—and one ArrayList constructor accepts a System.Collections.ICollection. Here’s the code to make the conversion in C#:

// Convert Hashtable keys into an arraylistArrayList list1 = new ArrayList(hashTable.Keys);// Convert Hashtable values into an arraylistArrayList list2 = new ArrayList(hashTable.Values);

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