BitArray.CopyTo(Array, Int32) Methode
Definitie
Belangrijk
Bepaalde informatie heeft betrekking op een voorlopige productversie die aanzienlijk kan worden gewijzigd voordat deze wordt uitgebracht. Microsoft biedt geen enkele expliciete of impliciete garanties met betrekking tot de informatie die hier wordt verstrekt.
public:
virtual void CopyTo(Array ^ array, int index);public void CopyTo(Array array, int index);abstract member CopyTo : Array * int -> unit
override this.CopyTo : Array * int -> unitPublic Sub CopyTo (array As Array, index As Integer)Parameters
- array
- Array
De eendimensionale Array die de bestemming is van de elementen die zijn gekopieerd uit BitArray. De Array indexering op basis van nul moet zijn.
- index
- Int32
De op nul gebaseerde index array waarin kopiëren begint.
Implementeringen
Uitzonderingen
array is null.
index is kleiner dan nul.
array is multidimensionaal.
– of –
Het aantal elementen in de bron BitArray is groter dan de beschikbare ruimte van index tot het einde van de bestemming array.
Het type bron BitArray kan niet automatisch worden gecast naar het type van de bestemming array.
Voorbeelden
In het volgende codevoorbeeld ziet u hoe u een in een eendimensionale BitArray kopie Arraykopieert.
using System;
using System.Collections;
public class SamplesBitArray {
public static void Main() {
// Creates and initializes the source BitArray.
BitArray myBA = new BitArray( 4 );
myBA[0] = myBA[1] = myBA[2] = myBA[3] = true;
// Creates and initializes the one-dimensional target Array of type Boolean.
bool[] myBoolArray = new bool[8];
myBoolArray[0] = false;
myBoolArray[1] = false;
// Displays the values of the target Array.
Console.WriteLine( "The target Boolean Array contains the following (before and after copying):" );
PrintValues( myBoolArray );
// Copies the entire source BitArray to the target BitArray, starting at index 3.
myBA.CopyTo( myBoolArray, 3 );
// Displays the values of the target Array.
PrintValues( myBoolArray );
// Creates and initializes the one-dimensional target Array of type integer.
int[] myIntArray = new int[8];
myIntArray[0] = 42;
myIntArray[1] = 43;
// Displays the values of the target Array.
Console.WriteLine( "The target integer Array contains the following (before and after copying):" );
PrintValues( myIntArray );
// Copies the entire source BitArray to the target BitArray, starting at index 3.
myBA.CopyTo( myIntArray, 3 );
// Displays the values of the target Array.
PrintValues( myIntArray );
// Creates and initializes the one-dimensional target Array of type byte.
Array myByteArray = Array.CreateInstance( typeof(byte), 8 );
myByteArray.SetValue( (byte) 10, 0 );
myByteArray.SetValue( (byte) 11, 1 );
// Displays the values of the target Array.
Console.WriteLine( "The target byte Array contains the following (before and after copying):" );
PrintValues( myByteArray );
// Copies the entire source BitArray to the target BitArray, starting at index 3.
myBA.CopyTo( myByteArray, 3 );
// Displays the values of the target Array.
PrintValues( myByteArray );
// Returns an exception if the array is not of type Boolean, integer or byte.
try {
Array myStringArray=Array.CreateInstance( typeof(string), 8 );
myStringArray.SetValue( "Hello", 0 );
myStringArray.SetValue( "World", 1 );
myBA.CopyTo( myStringArray, 3 );
} catch ( Exception myException ) {
Console.WriteLine("Exception: " + myException.ToString());
}
}
public static void PrintValues( IEnumerable myArr ) {
foreach ( Object obj in myArr ) {
Console.Write( "{0,8}", obj );
}
Console.WriteLine();
}
}
/*
This code produces the following output.
The target Boolean Array contains the following (before and after copying):
False False False False False False False False
False False False True True True True False
The target integer Array contains the following (before and after copying):
42 43 0 0 0 0 0 0
42 43 0 15 0 0 0 0
The target byte Array contains the following (before and after copying):
10 11 0 0 0 0 0 0
10 11 0 15 0 0 0 0
Exception: System.ArgumentException: Only supported array types for CopyTo on BitArrays are Boolean[], Int32[] and Byte[].
at System.Collections.BitArray.CopyTo(Array array, int index)
at SamplesBitArray.Main()
*/
Imports System.Collections
Public Class SamplesBitArray
Public Shared Sub Main()
' Creates and initializes the source BitArray.
Dim myBA As New BitArray(4)
myBA(0) = True
myBA(1) = True
myBA(2) = True
myBA(3) = True
' Creates and initializes the one-dimensional target Array of type Boolean.
Dim myBoolArray(7) As Boolean
myBoolArray(0) = False
myBoolArray(1) = False
' Displays the values of the target Array.
Console.WriteLine("The target Boolean Array contains the following (before and after copying):")
PrintValues(myBoolArray)
' Copies the entire source BitArray to the target BitArray, starting at index 3.
myBA.CopyTo(myBoolArray, 3)
' Displays the values of the target Array.
PrintValues(myBoolArray)
' Creates and initializes the one-dimensional target Array of type integer.
Dim myIntArray(7) As Integer
myIntArray(0) = 42
myIntArray(1) = 43
' Displays the values of the target Array.
Console.WriteLine("The target integer Array contains the following (before and after copying):")
PrintValues(myIntArray)
' Copies the entire source BitArray to the target BitArray, starting at index 3.
myBA.CopyTo(myIntArray, 3)
' Displays the values of the target Array.
PrintValues(myIntArray)
' Creates and initializes the one-dimensional target Array of type byte.
Dim myByteArray As Array = Array.CreateInstance(GetType(Byte), 8)
myByteArray.SetValue(System.Convert.ToByte(10), 0)
myByteArray.SetValue(System.Convert.ToByte(11), 1)
' Displays the values of the target Array.
Console.WriteLine("The target byte Array contains the following (before and after copying):")
PrintValues(myByteArray)
' Copies the entire source BitArray to the target BitArray, starting at index 3.
myBA.CopyTo(myByteArray, 3)
' Displays the values of the target Array.
PrintValues(myByteArray)
' Returns an exception if the array is not of type Boolean, integer or byte.
Try
Dim myStringArray As Array = Array.CreateInstance(GetType(String), 8)
myStringArray.SetValue("Hello", 0)
myStringArray.SetValue("World", 1)
myBA.CopyTo(myStringArray, 3)
Catch myException As Exception
Console.WriteLine("Exception: " + myException.ToString())
End Try
End Sub
Public Shared Sub PrintValues(myArr As IEnumerable)
Dim obj As [Object]
For Each obj In myArr
Console.Write("{0,8}", obj)
Next obj
Console.WriteLine()
End Sub
End Class
' This code produces the following output.
'
' The target Boolean Array contains the following (before and after copying):
' False False False False False False False False
' False False False True True True True False
' The target integer Array contains the following (before and after copying):
' 42 43 0 0 0 0 0 0
' 42 43 0 15 0 0 0 0
' The target byte Array contains the following (before and after copying):
' 10 11 0 0 0 0 0 0
' 10 11 0 15 0 0 0 0
' Exception: System.ArgumentException: Only supported array types for CopyTo on BitArrays are Boolean[], Int32[] and Byte[].
' at System.Collections.BitArray.CopyTo(Array array, Int32 index)
' at SamplesBitArray.Main()
Opmerkingen
De opgegeven matrix moet van een compatibel type zijn. Alleen bool, inten byte typen matrices worden ondersteund.
Deze methode is een O(n) bewerking, waarbij n .Count