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BitArray.Set Method

Sets the bit at a specific position in the BitArray to the specified value.

Namespace:  System.Collections
Assembly:  mscorlib (in mscorlib.dll)

public void Set(
	int index,
	bool value
)

Parameters

index
Type: System.Int32
The zero-based index of the bit to set.
value
Type: System.Boolean
The Boolean value to assign to the bit.

ExceptionCondition
ArgumentOutOfRangeException

index is less than zero.

-or-

index is greater than or equal to the number of elements in the BitArray.

This method is an O(1) operation.

The following code example shows how to set and get specific elements in a BitArray.


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

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

      // Creates and initializes a BitArray.
      BitArray myBA = new BitArray(5);

      // Displays the properties and values of the BitArray.
      outputBlock.Text += "myBA values:" + "\n";
      PrintIndexAndValues(outputBlock, myBA);

      // Sets all the elements to true.
      myBA.SetAll(true);

      // Displays the properties and values of the BitArray.
      outputBlock.Text += String.Format("After setting all elements to true,") + "\n";
      PrintIndexAndValues(outputBlock, myBA);

      // Sets the last index to false.
      myBA.Set(myBA.Count - 1, false);

      // Displays the properties and values of the BitArray.
      outputBlock.Text += String.Format("After setting the last element to false,") + "\n";
      PrintIndexAndValues(outputBlock, myBA);

      // Gets the value of the last two elements.
      outputBlock.Text += "The last two elements are: " + "\n";
      outputBlock.Text += String.Format("    at index {0} : {1}", myBA.Count - 2, myBA.Get(myBA.Count - 2)) + "\n";
      outputBlock.Text += String.Format("    at index {0} : {1}", myBA.Count - 1, myBA.Get(myBA.Count - 1)) + "\n";
   }


   public static void PrintIndexAndValues(System.Windows.Controls.TextBlock outputBlock, IEnumerable myCol)
   {
      int i = 0;
      foreach (Object obj in myCol)
      {
         outputBlock.Text += String.Format("    [{0}]:    {1}", i++, obj) + "\n";
      }
      outputBlock.Text += "\n";
   }

}
/* 
This code produces the following output.

myBA values:
    [0]:    False
    [1]:    False
    [2]:    False
    [3]:    False
    [4]:    False

After setting all elements to true,
    [0]:    True
    [1]:    True
    [2]:    True
    [3]:    True
    [4]:    True

After setting the last element to false,
    [0]:    True
    [1]:    True
    [2]:    True
    [3]:    True
    [4]:    False

The last two elements are:
    at index 3 : True
    at index 4 : False

*/


Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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