StringDictionary.CopyTo(Array, Int32) Methode

Definition

Kopiert die Werte des Zeichenfolgenwörterbuchs am angegebenen Index in eine eindimensionale Array-Instanz.Copies the string dictionary values to a one-dimensional Array instance at the specified index.

public:
 virtual void CopyTo(Array ^ array, int index);
public virtual void CopyTo (Array array, int index);
abstract member CopyTo : Array * int -> unit
override this.CopyTo : Array * int -> unit

Parameter

array
Array

Das eindimensionale Array, das das Ziel der aus dem StringDictionary kopierten Werte ist.The one-dimensional Array that is the destination of the values copied from the StringDictionary.

index
Int32

Der Index im Array, bei dem mit dem Kopieren begonnen wird.The index in the array where copying begins.

Ausnahmen

array ist mehrdimensional.array is multidimensional.

- oder --or- Die Anzahl der Elemente in der StringDictionary ist größer als der verfügbare Platz zwischen index und dem Ende von array.The number of elements in the StringDictionary is greater than the available space from index to the end of array.

array ist null.array is null.

index ist kleiner als die untere array-Grenze.index is less than the lower bound of array.

Beispiele

Im folgenden Codebeispiel wird gezeigt, wie ein StringDictionary in ein Array kopiert werden kann.The following code example shows how a StringDictionary can be copied to an array.

#using <System.dll>

using namespace System;
using namespace System::Collections;
using namespace System::Collections::Specialized;
void main()
{
   
   // Creates and initializes a new StringDictionary.
   StringDictionary^ myCol = gcnew StringDictionary;
   myCol->Add( "red", "rojo" );
   myCol->Add( "green", "verde" );
   myCol->Add( "blue", "azul" );
   
   // Displays the values in the StringDictionary.
   Console::WriteLine( "KEYS\tVALUES in the StringDictionary" );
   IEnumerator^ myEnum = myCol->GetEnumerator();
   while ( myEnum->MoveNext() )
   {
      DictionaryEntry^ myDE = safe_cast<DictionaryEntry^>(myEnum->Current);
      Console::WriteLine( "{0}\t{1}", myDE->Key, myDE->Value );
      Console::WriteLine();
      
      // Creates an array with DictionaryEntry elements.
      array<DictionaryEntry>^myArr = gcnew array<DictionaryEntry>(3);
      
      // Copies the StringDictionary to the array.
      myCol->CopyTo( myArr, 0 );
      
      // Displays the values in the array.
      Console::WriteLine( "KEYS\tVALUES in the array" );
      for ( int i = 0; i < myArr->Length; i++ )
         Console::WriteLine( "{0}\t{1}", myArr[ i ].Key, myArr[ i ].Value );
      Console::WriteLine();
   }
}

/*
This code produces the following output.

KEYS    VALUES in the StringDictionary
green   verde
red     rojo
blue    azul

KEYS    VALUES in the array
green   verde
red     rojo
blue    azul

*/
using System;
using System.Collections;
using System.Collections.Specialized;

public class SamplesStringDictionary  {

   public static void Main()  {

      // Creates and initializes a new StringDictionary.
      StringDictionary myCol = new StringDictionary();
      myCol.Add( "red", "rojo" );
      myCol.Add( "green", "verde" );
      myCol.Add( "blue", "azul" );

      // Displays the values in the StringDictionary.
      Console.WriteLine( "KEYS\tVALUES in the StringDictionary" );
      foreach ( DictionaryEntry myDE in myCol )
         Console.WriteLine( "{0}\t{1}", myDE.Key, myDE.Value );
      Console.WriteLine();

      // Creates an array with DictionaryEntry elements.
      DictionaryEntry[] myArr = { new DictionaryEntry(), new DictionaryEntry(), new DictionaryEntry() };

      // Copies the StringDictionary to the array.
      myCol.CopyTo( myArr, 0 );

      // Displays the values in the array.
      Console.WriteLine( "KEYS\tVALUES in the array" );
      for ( int i = 0; i < myArr.Length; i++ )
         Console.WriteLine( "{0}\t{1}", myArr[i].Key, myArr[i].Value );
      Console.WriteLine();

   }

}

/*
This code produces the following output.

KEYS    VALUES in the StringDictionary
green   verde
red     rojo
blue    azul

KEYS    VALUES in the array
green   verde
red     rojo
blue    azul

*/
Imports System.Collections
Imports System.Collections.Specialized

Public Class SamplesStringDictionary

   Public Shared Sub Main()

      ' Creates and initializes a new StringDictionary.
      Dim myCol As New StringDictionary()
      myCol.Add("red", "rojo")
      myCol.Add("green", "verde")
      myCol.Add("blue", "azul")

      ' Displays the values in the StringDictionary.
      Console.WriteLine("KEYS" + ControlChars.Tab + "VALUES in the StringDictionary")
      Dim myDE As DictionaryEntry
      For Each myDE In  myCol
         Console.WriteLine("{0}" + ControlChars.Tab + "{1}", myDE.Key, myDE.Value)
      Next myDE
      Console.WriteLine()

      ' Creates an array with DictionaryEntry elements.
      Dim myArr As DictionaryEntry() =  {New DictionaryEntry(), New DictionaryEntry(), New DictionaryEntry()}

      ' Copies the StringDictionary to the array.
      myCol.CopyTo(myArr, 0)

      ' Displays the values in the array.
      Console.WriteLine("KEYS" + ControlChars.Tab + "VALUES in the array")
      Dim i As Integer
      For i = 0 To myArr.Length - 1
         Console.WriteLine("{0}" + ControlChars.Tab + "{1}", myArr(i).Key, myArr(i).Value)
      Next i
      Console.WriteLine()

   End Sub

End Class


'This code produces the following output.
'
'KEYS    VALUES in the StringDictionary
'green   verde
'red     rojo
'blue    azul
'
'KEYS    VALUES in the array
'green   verde
'red     rojo
'blue    azul

Hinweise

CopyTo kopiert Objekte, die Typumwandlung sein können, in System.Collections.DictionaryEntry.CopyTo copies objects that can be typecast to System.Collections.DictionaryEntry. DictionaryEntry enthält sowohl den Schlüssel als auch den Wert.DictionaryEntry contains both the key and the value.

Die Elemente, die in die Array kopiert werden, werden in der gleichen Reihenfolge sortiert, in der der Enumerator die StringDictionarydurchläuft.The elements copied to the Array are sorted in the same order that the enumerator iterates through the StringDictionary.

Bei dieser Methode handelt es sich um einen O (n)-Vorgang, bei dem n Countist.This method is an O(n) operation, where n is Count.

Gilt für: