Lookup<TKey,TElement>.GetEnumerator Metodo

Definizione

Restituisce un enumeratore generico che consente di scorrere l’oggetto Lookup<TKey,TElement>.Returns a generic enumerator that iterates through the Lookup<TKey,TElement>.

public:
 virtual System::Collections::Generic::IEnumerator<System::Linq::IGrouping<TKey, TElement> ^> ^ GetEnumerator();
public System.Collections.Generic.IEnumerator<System.Linq.IGrouping<TKey,TElement>> GetEnumerator ();
abstract member GetEnumerator : unit -> System.Collections.Generic.IEnumerator<System.Linq.IGrouping<'Key, 'Element>>
override this.GetEnumerator : unit -> System.Collections.Generic.IEnumerator<System.Linq.IGrouping<'Key, 'Element>>
Public Iterator Overridable NotOverridable Function GetEnumerator () As IEnumerator(Of IGrouping(Of TKey, TElement))

Restituisce

IEnumerator<IGrouping<TKey,TElement>>

Enumeratore per l'oggetto Lookup<TKey,TElement>.An enumerator for the Lookup<TKey,TElement>.

Implementazioni

Esempi

Nell'esempio seguente viene illustrato come utilizzare GetEnumerator per scorrere le chiavi e i valori di un Lookup<TKey,TElement>oggetto.The following example demonstrates how to use GetEnumerator to iterate through the keys and values of a Lookup<TKey,TElement>. Questo esempio di codice fa parte di un esempio più ampio fornito Lookup<TKey,TElement> per la classe.This code example is part of a larger example provided for the Lookup<TKey,TElement> class.

// Iterate through each IGrouping in the Lookup and output the contents.
foreach (IGrouping<char, string> packageGroup in lookup)
{
    // Print the key value of the IGrouping.
    Console.WriteLine(packageGroup.Key);
    // Iterate through each value in the IGrouping and print its value.
    foreach (string str in packageGroup)
        Console.WriteLine("    {0}", str);
}
Dim output As New System.Text.StringBuilder
' Iterate through each IGrouping in the Lookup and output the contents.
For Each packageGroup As IGrouping(Of Char, String) In lookup
    ' Print the key value of the IGrouping.
    output.AppendLine(packageGroup.Key)
    ' Iterate through each value in the IGrouping and print its value.
    For Each str As String In packageGroup
        output.AppendLine(String.Format("    {0}", str))
    Next
Next

' Display the output.
MsgBox(output.ToString())

Si applica a