BitArray.CopyTo Method

Parameters

• array
  Type: System.Array
  The one-dimensional Array that is the destination of the elements copied from BitArray. The Array must have zero-based indexing.

• index
  Type: System.Int32
  The zero-based index in array at which copying begins.

Imports System.Collections

Public Class Example

   Public Shared Sub Demo(ByVal outputBlock As System.Windows.Controls.TextBlock)

      ' 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.
      outputBlock.Text &= "The target Boolean Array contains the following (before and after copying):" & vbCrLf
      PrintValues(outputBlock, 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(outputBlock, 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.
      outputBlock.Text &= "The target Boolean Array contains the following (before and after copying):" & vbCrLf
      PrintValues(outputBlock, 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(outputBlock, myIntArray)

      ' Creates and initializes the one-dimensional target Array of type integer.
      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.
      outputBlock.Text &= "The target Boolean Array contains the following (before and after copying):" & vbCrLf
      PrintValues(outputBlock, 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(outputBlock, 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
         outputBlock.Text &= "Exception: " + myException.ToString() & vbCrLf
      End Try

   End Sub 'Main

   Public Shared Sub PrintValues(ByVal outputBlock As System.Windows.Controls.TextBlock, ByVal myArr As IEnumerable)
      Dim obj As [Object]
      For Each obj In myArr
         outputBlock.Text += String.Format("{0,8}", obj)
      Next obj
      outputBlock.Text &= vbCrLf
   End Sub 'PrintValues

End Class 'SamplesBitArray 


' 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 Boolean 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 Boolean 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()

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

   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
   {

      // 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.
      outputBlock.Text += "The target Boolean Array contains the following (before and after copying):" + "\n";
      PrintValues(outputBlock, 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(outputBlock, 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.
      outputBlock.Text += "The target Boolean Array contains the following (before and after copying):" + "\n";
      PrintValues(outputBlock, 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(outputBlock, myIntArray);

      // Creates and initializes the one-dimensional target Array of type integer.
      Array myByteArray = Array.CreateInstance(typeof(byte), 8);
      myByteArray.SetValue((byte)10, 0);
      myByteArray.SetValue((byte)11, 1);

      // Displays the values of the target Array.
      outputBlock.Text += "The target Boolean Array contains the following (before and after copying):" + "\n";
      PrintValues(outputBlock, 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(outputBlock, 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)
      {
         outputBlock.Text += "Exception: " + myException.ToString() + "\n";
      }
   }

   public static void PrintValues(System.Windows.Controls.TextBlock outputBlock, IEnumerable myArr)
   {
      foreach (Object obj in myArr)
      {
         outputBlock.Text += String.Format("{0,8}", obj);
      }
      outputBlock.Text += "\n";
   }

}


/* 
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 Boolean 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 Boolean 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()

*/