C# | Check if the BitArray is readonly (original) (raw)

C# | Check if the BitArray is read-only

Last Updated : 01 Feb, 2019

The BitArray class manages a compact array of bit values, which are represented as Booleans, where true indicates that the bit is on i.e, 1 and false indicates the bit is off i.e, 0. This class is contained in System.Collections namespace.BitArray.IsReadOnly property is used to get a value indicating whether the BitArray is read-only or not. Properties:

• 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.

Syntax:

public bool IsReadOnly { get; }

Return Value: This property is always false.Example:

CSHARP `

// C# code to check if the // BitArray is read-only using System; using System.Collections;

class GFG {

// Driver code
public static void Main()
{

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

    // Checking if the BitArray is read-only
    Console.WriteLine(myBitArr.IsReadOnly);
}

}

`

Output:

False

Note:

• A collection that is read-only does not allow the addition, removal, or modification of elements after the collection is created.
• This method is an O(1) operation.
• A collection that is read-only is simply a collection with a wrapper that prevents modifying the collection. Therefore, if changes are made to the underlying collection, the read-only collection reflects those changes.

Reference:

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

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