C# | Check if the StringCollection is read-only

StringCollection class is a new addition to the .NET Framework class library that represents a collection of strings. StringCollection class is defined in the System.Collections.Specialized namespace.
StringCollection.IsReadOnly property is used to get a value indicating whether the StringCollection is read-only or not.

Syntax:

public bool IsReadOnly { get; }

Return Value: This property always returns false.

Note:

A collection that is read-only does not allow the addition, removal, or modification of elements after the collection is created.
Retrieving the value of this property is an O(1) operation.

Example:

// C# code to check if the 
// StringCollection is read-only 

using System; 

using System.Collections; 

using System.Collections.Specialized; 

class GFG { 

    // Driver code 

    public static void Main() 

    { 

        // creating a StringCollection named myCol 

        StringCollection myCol = new StringCollection(); 

        // creating a string array named myArr 

        String[] myArr = new String[] { "A", "B", "C", "D", "E" }; 

        // Copying the elements of a string 

        // array to the end of the StringCollection. 

        myCol.AddRange(myArr); 

        // checking if StringCollection is 

        // read-only 

        Console.WriteLine(myCol.IsReadOnly); 

    } 
}