ListDictionary.Values プロパティ
ListDictionary 内の値を格納している ICollection を取得します。
Public Overridable ReadOnly Property Values As ICollection _ Implements IDictionary.Values
[C#]
public virtual ICollection Values {get;}
[C++]
public: __property virtual ICollection* get_Values();
[JScript]
public function get Values() : ICollection;
プロパティ値
ListDictionary 内の値を格納している ICollection 。
実装
解説
ICollection 内の値の順序は指定されていませんが、関連付けられているキーが、 Keys メソッドから返された ICollection 内で並べられている順序と同じです。
返される ICollection は静的なコピーではありません。代わりに、この ICollection は、元の ListDictionary の値を参照します。そのため、 ListDictionary に対する変更は、 ICollection にも反映されます。
使用例
[Visual Basic, C#, C++] ListDictionary の要素を列挙するコード例を次に示します。
Imports System
Imports System.Collections
Imports System.Collections.Specialized
Public Class SamplesListDictionary
Public Shared Sub Main()
' Creates and initializes a new ListDictionary.
Dim myCol As New ListDictionary()
myCol.Add("Braeburn Apples", "1.49")
myCol.Add("Fuji Apples", "1.29")
myCol.Add("Gala Apples", "1.49")
myCol.Add("Golden Delicious Apples", "1.29")
myCol.Add("Granny Smith Apples", "0.89")
myCol.Add("Red Delicious Apples", "0.99")
' Displays the values in the ListDictionary in three different ways.
Console.WriteLine("Displays the elements using for each:")
PrintKeysAndValues(myCol)
Console.WriteLine("Displays the elements using the IDictionaryEnumerator:")
PrintKeysAndValues2(myCol)
Console.WriteLine("Displays the elements using the Keys, Values, Count, and indexer properties:")
PrintKeysAndValues3(myCol)
End Sub 'Main
Public Shared Sub PrintKeysAndValues(myCol As IDictionary)
Console.WriteLine(" KEY VALUE")
Dim de As DictionaryEntry
For Each de In myCol
Console.WriteLine(" {0,-25} {1}", de.Key, de.Value)
Next de
Console.WriteLine()
End Sub 'PrintKeysAndValues
Public Shared Sub PrintKeysAndValues2(myCol As IDictionary)
Dim myEnumerator As IDictionaryEnumerator = myCol.GetEnumerator()
Console.WriteLine(" KEY VALUE")
While myEnumerator.MoveNext()
Console.WriteLine(" {0,-25} {1}", myEnumerator.Key, myEnumerator.Value)
End While
Console.WriteLine()
End Sub 'PrintKeysAndValues2
Public Shared Sub PrintKeysAndValues3(myCol As ListDictionary)
Dim myKeys(myCol.Count) As [String]
myCol.Keys.CopyTo(myKeys, 0)
Console.WriteLine(" INDEX KEY VALUE")
Dim i As Integer
For i = 0 To myCol.Count - 1
Console.WriteLine(" {0,-5} {1,-25} {2}", i, myKeys(i), myCol(myKeys(i)))
Next i
Console.WriteLine()
End Sub 'PrintKeysAndValues3
End Class 'SamplesListDictionary
'This code produces the following output.
'
'Displays the elements using for each:
' KEY VALUE
' Braeburn Apples 1.49
' Fuji Apples 1.29
' Gala Apples 1.49
' Golden Delicious Apples 1.29
' Granny Smith Apples 0.89
' Red Delicious Apples 0.99
'
'Displays the elements using the IDictionaryEnumerator:
' KEY VALUE
' Braeburn Apples 1.49
' Fuji Apples 1.29
' Gala Apples 1.49
' Golden Delicious Apples 1.29
' Granny Smith Apples 0.89
' Red Delicious Apples 0.99
'
'Displays the elements using the Keys, Values, Count, and indexer properties:
' INDEX KEY VALUE
' 0 Braeburn Apples 1.49
' 1 Fuji Apples 1.29
' 2 Gala Apples 1.49
' 3 Golden Delicious Apples 1.29
' 4 Granny Smith Apples 0.89
' 5 Red Delicious Apples 0.99
[C#]
using System;
using System.Collections;
using System.Collections.Specialized;
public class SamplesListDictionary {
public static void Main() {
// Creates and initializes a new ListDictionary.
ListDictionary myCol = new ListDictionary();
myCol.Add( "Braeburn Apples", "1.49" );
myCol.Add( "Fuji Apples", "1.29" );
myCol.Add( "Gala Apples", "1.49" );
myCol.Add( "Golden Delicious Apples", "1.29" );
myCol.Add( "Granny Smith Apples", "0.89" );
myCol.Add( "Red Delicious Apples", "0.99" );
// Displays the values in the ListDictionary in three different ways.
Console.WriteLine( "Displays the elements using foreach:" );
PrintKeysAndValues( myCol );
Console.WriteLine( "Displays the elements using the IDictionaryEnumerator:" );
PrintKeysAndValues2( myCol );
Console.WriteLine( "Displays the elements using the Keys, Values, Count, and indexer properties:" );
PrintKeysAndValues3( myCol );
}
public static void PrintKeysAndValues( IDictionary myCol ) {
Console.WriteLine( " KEY VALUE" );
foreach ( DictionaryEntry de in myCol )
Console.WriteLine( " {0,-25} {1}", de.Key, de.Value );
Console.WriteLine();
}
public static void PrintKeysAndValues2( IDictionary myCol ) {
IDictionaryEnumerator myEnumerator = myCol.GetEnumerator();
Console.WriteLine( " KEY VALUE" );
while ( myEnumerator.MoveNext() )
Console.WriteLine( " {0,-25} {1}", myEnumerator.Key, myEnumerator.Value );
Console.WriteLine();
}
public static void PrintKeysAndValues3( ListDictionary myCol ) {
String[] myKeys = new String[myCol.Count];
myCol.Keys.CopyTo( myKeys, 0 );
Console.WriteLine( " INDEX KEY VALUE" );
for ( int i = 0; i < myCol.Count; i++ )
Console.WriteLine( " {0,-5} {1,-25} {2}", i, myKeys[i], myCol[myKeys[i]] );
Console.WriteLine();
}
}
/*
This code produces the following output.
Displays the elements using foreach:
KEY VALUE
Braeburn Apples 1.49
Fuji Apples 1.29
Gala Apples 1.49
Golden Delicious Apples 1.29
Granny Smith Apples 0.89
Red Delicious Apples 0.99
Displays the elements using the IDictionaryEnumerator:
KEY VALUE
Braeburn Apples 1.49
Fuji Apples 1.29
Gala Apples 1.49
Golden Delicious Apples 1.29
Granny Smith Apples 0.89
Red Delicious Apples 0.99
Displays the elements using the Keys, Values, Count, and indexer properties:
INDEX KEY VALUE
0 Braeburn Apples 1.49
1 Fuji Apples 1.29
2 Gala Apples 1.49
3 Golden Delicious Apples 1.29
4 Granny Smith Apples 0.89
5 Red Delicious Apples 0.99
*/
[C++]
#using <mscorlib.dll>
#using <System.dll>
using namespace System;
using namespace System::Collections;
using namespace System::Collections::Specialized;
void PrintKeysAndValues( IDictionary* myCol ) {
Console::WriteLine( S" KEY VALUE" );
IEnumerator* myEnum = myCol->GetEnumerator();
while (myEnum->MoveNext())
{
DictionaryEntry de = *__try_cast<DictionaryEntry*>(myEnum->Current);
Console::WriteLine( S" {0,-25} {1}", de.Key, de.Value );
}
Console::WriteLine();
}
void PrintKeysAndValues2( IDictionary* myCol ) {
IDictionaryEnumerator* myEnumerator = myCol->GetEnumerator();
Console::WriteLine( S" KEY VALUE" );
while ( myEnumerator->MoveNext() )
Console::WriteLine( S" {0,-25} {1}", myEnumerator->Key, myEnumerator->Value );
Console::WriteLine();
}
void PrintKeysAndValues3( ListDictionary* myCol ) {
String* myKeys[] = new String*[myCol->Count];
myCol->Keys->CopyTo( myKeys, 0 );
Console::WriteLine( S" INDEX KEY VALUE" );
for ( int i = 0; i < myCol->Count; i++ )
Console::WriteLine( S" {0,-5} {1,-25} {2}", __box(i), myKeys->Item[i], myCol->Item[myKeys[i]] );
Console::WriteLine();
}
int main() {
// Creates and initializes a new ListDictionary.
ListDictionary* myCol = new ListDictionary();
myCol->Add( S"Braeburn Apples", S"1.49" );
myCol->Add( S"Fuji Apples", S"1.29" );
myCol->Add( S"Gala Apples", S"1.49" );
myCol->Add( S"Golden Delicious Apples", S"1.29" );
myCol->Add( S"Granny Smith Apples", S"0.89" );
myCol->Add( S"Red Delicious Apples", S"0.99" );
// Displays the values in the ListDictionary in three different ways.
Console::WriteLine( S"Displays the elements using foreach:" );
PrintKeysAndValues( myCol );
Console::WriteLine( S"Displays the elements using the IDictionaryEnumerator:" );
PrintKeysAndValues2( myCol );
Console::WriteLine( S"Displays the elements using the Keys, Values, Count, and indexer properties:" );
PrintKeysAndValues3( myCol );
}
/*
This code produces the following output.
Displays the elements using foreach:
KEY VALUE
Braeburn Apples 1.49
Fuji Apples 1.29
Gala Apples 1.49
Golden Delicious Apples 1.29
Granny Smith Apples 0.89
Red Delicious Apples 0.99
Displays the elements using the IDictionaryEnumerator:
KEY VALUE
Braeburn Apples 1.49
Fuji Apples 1.29
Gala Apples 1.49
Golden Delicious Apples 1.29
Granny Smith Apples 0.89
Red Delicious Apples 0.99
Displays the elements using the Keys, Values, Count, and indexer properties:
INDEX KEY VALUE
0 Braeburn Apples 1.49
1 Fuji Apples 1.29
2 Gala Apples 1.49
3 Golden Delicious Apples 1.29
4 Granny Smith Apples 0.89
5 Red Delicious Apples 0.99
*/
[JScript] JScript のサンプルはありません。Visual Basic、C#、および C++ のサンプルを表示するには、このページの左上隅にある言語のフィルタ ボタン .gif)
をクリックします。
必要条件
プラットフォーム: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 ファミリ, .NET Compact Framework - Windows CE .NET
参照
ListDictionary クラス | ListDictionary メンバ | System.Collections.Specialized 名前空間 | ICollection | Keys