Export (0) Print
Expand All

BitArray.SetAll Method

Sets all bits in the BitArray to the specified value.

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

public void SetAll(
	bool value
)

Parameters

value
Type: System.Boolean
The Boolean value to assign to all bits.

This method is an O(n) operation, where n is Count.

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


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

   public static void Main()  {

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

      // Displays the properties and values of the BitArray.
      Console.WriteLine( "myBA values:" );
      PrintIndexAndValues( myBA );

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

      // Displays the properties and values of the BitArray.
      Console.WriteLine( "After setting all elements to true," );
      PrintIndexAndValues( myBA );

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

      // Displays the properties and values of the BitArray.
      Console.WriteLine( "After setting the last element to false," );
      PrintIndexAndValues( myBA );

      // Gets the value of the last two elements.
      Console.WriteLine( "The last two elements are: " );
      Console.WriteLine( "    at index {0} : {1}", myBA.Count - 2, myBA.Get( myBA.Count - 2 ) );
      Console.WriteLine( "    at index {0} : {1}", myBA.Count - 1, myBA.Get( myBA.Count - 1 ) );
   }


   public static void PrintIndexAndValues( IEnumerable myCol )  {
      int i = 0;
      foreach ( Object obj in myCol ) {
         Console.WriteLine( "    [{0}]:    {1}", i++, obj );
      }
      Console.WriteLine();
   }

}
/* 
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

*/ 


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Community Additions

ADD
Show:
© 2014 Microsoft