C# | Get or set the number of elements in the BitArray

• The BitArray class is a collection class in which the capacity is always the same as the count.
• Elements are added to a BitArray by increasing the Length property.
• Elements are deleted by decreasing the Length property.
• Elements in this collection can be accessed using an integer index. Indexes in this collection are zero-based.

public int Length { get; set; }

// C# code to get or set the
// number of elements in the BitArray
using System;
using System.Collections;

class GFG {

    // Driver code
    public static void Main()
    {

        // Creating a BitArray myBitArr
        BitArray myBitArr = new BitArray(new byte[] { 0, 0, 0, 1 });

        // Displaying the number of
        // elements in myBitArr
        Console.WriteLine(myBitArr.Length);
    }
}

32

// C# code to get or set the
// number of elements in the BitArray
using System;
using System.Collections;

class GFG {

    // Driver code
    public static void Main()
    {

        // Creating a BitArray myBitArr
        BitArray myBitArr = new BitArray(new byte[] {});

        // Displaying the number of
        // elements in myBitArr
        Console.WriteLine(myBitArr.Length);
    }
}

0

• Length and Count return the same value. Length can be set to a specific value, but Count is read-only.
• If Length is set to a value that is less than Count, the BitArray is truncated and the elements after the index value -1 are deleted.
• If Length is set to a value that is greater than Count, the new elements are set to false.
• Retrieving the value of this property is an O(1) operation. Setting this property is an O(n) operation.

• https://docs.microsoft.com/en-us/dotnet/api/system.collections.bitarray.length?view=netframework-4.7.2