VB.Net で Collectionを扱うサンプル

初期化

''' <summary>
''' List
''' </summary>
Dim animals As New List(Of String)(New String() {"dog", "cat", "monkey"})

Dim numbers As New List(Of Integer) From {{10}, {20}, {30}}


''' <summary>
''' Dictionary
''' </summary>
Dim wdic As New Dictionary(Of Integer, String) From {{1, "one"}, {2, "Two"}}

DictionaryのMerge

''' <summary>
''' DictionaryのMerge
''' </summary>
Public Shared Function MergeDictionary(Of TKey, TValue)(
	first As Dictionary(Of TKey, TValue),
	second As Dictionary(Of TKey, TValue)) As Dictionary(Of TKey, TValue)
	
	If (second Is Nothing) Then
	    Return first
	End If
	If (first Is Nothing) Then
	    first = New Dictionary(Of TKey, TValue)()
	End If
	For Each kv As KeyValuePair(Of TKey, TValue) In second
	    If (first.ContainsKey(kv.Key)) Then
		first(kv.Key) = kv.Value
	    Else
		first.Add(kv.Key, kv.Value)
	    End If
	Next
	Return first
End Function