SortedList.CopyTo(Array, Int32) Metoda

Definicja

Przestrzeń nazw:

System.Collections

Zestaw:

System.Collections.NonGeneric.dll

Źródło:

SortedList.cs

Kopiuje SortedList elementy do obiektu jednowymiarowego Array , zaczynając od określonego indeksu w tablicy.

public:
 virtual void CopyTo(Array ^ array, int arrayIndex);

public virtual void CopyTo (Array array, int arrayIndex);

abstract member CopyTo : Array * int -> unit
override this.CopyTo : Array * int -> unit

Public Overridable Sub CopyTo (array As Array, arrayIndex As Integer)

Parametry

array

Array

Obiekt jednowymiarowy Array , który jest miejscem docelowym DictionaryEntry obiektów skopiowanych z SortedListobiektu . Element Array musi mieć indeksowanie oparte na zerach.

arrayIndex

Int32

Numerowany od zera indeks w tablicy array, od którego rozpoczyna się kopiowanie.

Implementuje

CopyTo(Array, Int32)

Wyjątki

ArgumentNullException

array to null.

ArgumentOutOfRangeException

Parametr arrayIndex ma wartość niższą niż zero.

ArgumentException

Parametr array jest wielowymiarowy.

-lub-

Liczba elementów w obiekcie źródłowym SortedList jest większa niż dostępna przestrzeń od arrayIndex do końca miejsca docelowego array.

InvalidCastException

Nie można automatycznie rzutować typu źródła SortedList do typu docelowego array.

Przykłady

Poniższy przykład kodu przedstawia sposób kopiowania wartości w SortedList obiekcie do obiektu jednowymiarowego Array .

using namespace System;
using namespace System::Collections;
void PrintValues( array<DictionaryEntry>^ myArr, Char mySeparator );
int main()
{
   
   // Creates and initializes the source SortedList.
   SortedList^ mySourceList = gcnew SortedList;
   mySourceList->Add( 2, "cats" );
   mySourceList->Add( 3, "in" );
   mySourceList->Add( 1, "napping" );
   mySourceList->Add( 4, "the" );
   mySourceList->Add( 0, "three" );
   mySourceList->Add( 5, "barn" );
   
   // Creates and initializes the one-dimensional target Array.
   array<String^>^tempArray = {"The","quick","brown","fox","jumps","over","the","lazy","dog"};
   array<DictionaryEntry>^myTargetArray = gcnew array<DictionaryEntry>(15);
   int i = 0;
   IEnumerator^ myEnum = tempArray->GetEnumerator();
   while ( myEnum->MoveNext() )
   {
      String^ s = safe_cast<String^>(myEnum->Current);
      myTargetArray[ i ].Key = i;
      myTargetArray[ i ].Value = s;
      i++;
   }

   
   // Displays the values of the target Array.
   Console::WriteLine( "The target Array contains the following (before and after copying):" );
   PrintValues( myTargetArray, ' ' );
   
   // Copies the entire source SortedList to the target SortedList, starting at index 6.
   mySourceList->CopyTo( myTargetArray, 6 );
   
   // Displays the values of the target Array.
   PrintValues( myTargetArray, ' ' );
}

void PrintValues( array<DictionaryEntry>^ myArr, Char mySeparator )
{
   for ( int i = 0; i < myArr->Length; i++ )
      Console::Write( "{0}{1}", mySeparator, myArr[ i ].Value );
   Console::WriteLine();
}

/*
This code produces the following output.
 
The target Array contains the following (before and after copying):
 The quick brown fox jumps over the lazy dog      
 The quick brown fox jumps over three napping cats in the barn

*/

 using System;
 using System.Collections;
 public class SamplesSortedList  {

    public static void Main()  {

       // Creates and initializes the source SortedList.
       SortedList mySourceList = new SortedList();
       mySourceList.Add( 2, "cats" );
       mySourceList.Add( 3, "in" );
       mySourceList.Add( 1, "napping" );
       mySourceList.Add( 4, "the" );
       mySourceList.Add( 0, "three" );
       mySourceList.Add( 5, "barn" );

       // Creates and initializes the one-dimensional target Array.
       String[] tempArray = new String[] { "The", "quick", "brown", "fox", "jumps", "over", "the", "lazy", "dog" };
       DictionaryEntry[] myTargetArray = new DictionaryEntry[15];
       int i = 0;
       foreach ( string s in tempArray )  {
          myTargetArray[i].Key = i;
          myTargetArray[i].Value = s;
          i++;
       }

       // Displays the values of the target Array.
       Console.WriteLine( "The target Array contains the following (before and after copying):" );
       PrintValues( myTargetArray, ' ' );

       // Copies the entire source SortedList to the target SortedList, starting at index 6.
       mySourceList.CopyTo( myTargetArray, 6 );

       // Displays the values of the target Array.
       PrintValues( myTargetArray, ' ' );
    }

    public static void PrintValues( DictionaryEntry[] myArr, char mySeparator )  {
       for ( int i = 0; i < myArr.Length; i++ )
          Console.Write( "{0}{1}", mySeparator, myArr[i].Value );
       Console.WriteLine();
    }
 }


/*
This code produces the following output.

The target Array contains the following (before and after copying):
 The quick brown fox jumps over the lazy dog
 The quick brown fox jumps over three napping cats in the barn

*/

Imports System.Collections

Public Class SamplesSortedList

   Public Shared Sub Main()

      ' Creates and initializes the source SortedList.
      Dim mySourceList As New SortedList()
      mySourceList.Add(2, "cats")
      mySourceList.Add(3, "in")
      mySourceList.Add(1, "napping")
      mySourceList.Add(4, "the")
      mySourceList.Add(0, "three")
      mySourceList.Add(5, "barn")

      ' Creates and initializes the one-dimensional target Array.
      Dim tempArray() As String = {"The", "quick", "brown", "fox", "jumps", "over", "the", "lazy", "dog"}
      Dim myTargetArray(14) As DictionaryEntry
      Dim i As Integer = 0
      Dim s As String
      For Each s In  tempArray
         myTargetArray(i).Key = i
         myTargetArray(i).Value = s
         i += 1
      Next s

      ' Displays the values of the target Array.
      Console.WriteLine("The target Array contains the following (before and after copying):")
      PrintValues(myTargetArray, " "c)

      ' Copies the entire source SortedList to the target SortedList, starting at index 6.
      mySourceList.CopyTo(myTargetArray, 6)

      ' Displays the values of the target Array.
      PrintValues(myTargetArray, " "c)

   End Sub


   Public Shared Sub PrintValues(myArr() As DictionaryEntry, mySeparator As Char)
      Dim i As Integer
      For i = 0 To myArr.Length - 1
         Console.Write("{0}{1}", mySeparator, myArr(i).Value)
      Next i
      Console.WriteLine()
  End Sub

End Class


'This code produces the following output.
' 
'The target Array contains the following (before and after copying):
' The quick brown fox jumps over the lazy dog      
' The quick brown fox jumps over three napping cats in the barn

Uwagi

Pary klucz/wartość są kopiowane do Array obiektu w tej samej kolejności, w której wyliczający iteruje przez SortedList obiekt.

Aby skopiować tylko klucze w elemecie SortedList, użyj polecenia SortedList.Keys.CopyTo.

Aby skopiować tylko wartości w elemecie SortedList, użyj polecenia SortedList.Values.CopyTo.

Ta metoda jest operacją O(n) , gdzie n to Count.

Zobacz też

• Array
• DictionaryEntry
• GetEnumerator()