SortedDictionary<TKey,TValue>.IDictionary.Values Proprietà

Definizione

Spazio dei nomi:

System.Collections.Generic

Assembly:

System.Collections.dll

Origine:

SortedDictionary.cs

Ottiene ICollection contenente i valori in IDictionary.

property System::Collections::ICollection ^ System::Collections::IDictionary::Values { System::Collections::ICollection ^ get(); };

System.Collections.ICollection System.Collections.IDictionary.Values { get; }

member this.System.Collections.IDictionary.Values : System.Collections.ICollection

 ReadOnly Property Values As ICollection Implements IDictionary.Values

Valore della proprietà

ICollection

Interfaccia ICollection contenente i valori dell'interfaccia IDictionary.

Implementazioni

Values

Esempio

Nell'esempio di codice seguente viene illustrato come usare la IDictionary.Values proprietà dell'interfaccia System.Collections.IDictionary con un SortedDictionary<TKey,TValue>oggetto , per elencare i valori nel dizionario. L'esempio illustra anche come enumerare le coppie chiave/valore nel dizionario; Si noti che l'enumeratore per l'interfaccia System.Collections.IDictionary restituisce DictionaryEntry oggetti anziché KeyValuePair<TKey,TValue> oggetti.

L'esempio di codice fa parte di un esempio più grande, incluso l'output, fornito per il IDictionary.Add metodo.

using System;
using System.Collections;
using System.Collections.Generic;

public class Example
{
    public static void Main()
    {
        // Create a new sorted dictionary of strings, with string keys,
        // and access it using the IDictionary interface.
        //
        IDictionary openWith = new SortedDictionary<string, string>();

        // Add some elements to the dictionary. There are no
        // duplicate keys, but some of the values are duplicates.
        // IDictionary.Add throws an exception if incorrect types
        // are supplied for key or value.
        openWith.Add("txt", "notepad.exe");
        openWith.Add("bmp", "paint.exe");
        openWith.Add("dib", "paint.exe");
        openWith.Add("rtf", "wordpad.exe");

Imports System.Collections
Imports System.Collections.Generic

Public Class Example
    
    Public Shared Sub Main() 

        ' Create a new sorted dictionary of strings, with string keys,
        ' and access it using the IDictionary interface.
        '
        Dim openWith As IDictionary = _
            New SortedDictionary(Of String, String)
        
        ' Add some elements to the dictionary. There are no 
        ' duplicate keys, but some of the values are duplicates.
        ' IDictionary.Add throws an exception if incorrect types
        ' are supplied for key or value.
        openWith.Add("txt", "notepad.exe")
        openWith.Add("bmp", "paint.exe")
        openWith.Add("dib", "paint.exe")
        openWith.Add("rtf", "wordpad.exe")

// To get the values alone, use the Values property.
ICollection icoll = openWith.Values;

// The elements of the collection are strongly typed
// with the type that was specified for dictionary values,
// even though the ICollection interface is not strongly
// typed.
Console.WriteLine();
foreach( string s in icoll )
{
    Console.WriteLine("Value = {0}", s);
}

' To get the values alone, use the Values property.
Dim icoll As ICollection = openWith.Values

' The elements of the collection are strongly typed
' with the type that was specified for dictionary values,
' even though the ICollection interface is not strongly
' typed.
Console.WriteLine()
For Each s As String In  icoll
    Console.WriteLine("Value = {0}", s)
Next s

// When you use foreach to enumerate dictionary elements
// with the IDictionary interface, the elements are retrieved
// as DictionaryEntry objects instead of KeyValuePair objects.
Console.WriteLine();
foreach( DictionaryEntry de in openWith )
{
    Console.WriteLine("Key = {0}, Value = {1}",
        de.Key, de.Value);
}

' When you use foreach to enumerate dictionary elements
' with the IDictionary interface, the elements are retrieved
' as DictionaryEntry objects instead of KeyValuePair objects.
Console.WriteLine()
For Each de As DictionaryEntry In openWith
    Console.WriteLine("Key = {0}, Value = {1}", _
        de.Key, de.Value)
Next

    }
}

    End Sub

End Class

Commenti

I valori restituiti ICollection vengono ordinati in base alla Comparer proprietà e sono garantiti nello stesso ordine delle chiavi corrispondenti restituite ICollection dalla Keys proprietà.

Ottenere il valore di questa proprietà è un'operazione O(1).

Vedi anche

• ICollection