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Tip of the Day
Language: VB7
Expertise: Intermediate
Dec 15, 2003

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SortedListFromHashtables - Creating a sorted list that combines the keys from 2 hashtables

' Create a case-insensitive sorted list that combines the keys from two 
' hashtables
' Example:
'    Dim slist As SortedList = SortedListFromHashtables(hashTable1, hashTable2)

Function SortedListFromHashtables(ByVal ht1 As Hashtable, _
    ByVal ht2 As Hashtable) As SortedList
    ' Create a case-insensitive sorted list 
    Dim list As SortedList = _
        Specialized.CollectionsUtil.CreateCaseInsensitiveSortedList()
    ' initialize the list with all keys in first hashtable
    For Each key As Object In ht1.Keys
        list.Add(key, key)
    Next
    ' add keys from second hashtable
    For Each key As Object In ht2.Keys
        If Not ht1.Contains(key) Then
            list.Add(key, key)
        End If
    Next
    Return list
End Function
Francesco Balena
 
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