Test if someObject is, or is derived from, a TextReader using the is operator : is « Operator « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. Operator
3. is

using System;
using System.IO;

class MainClass
{
    public static void Main() 
    {
        Object someObject = new StringReader("This is a StringReader");

        
        if (someObject is TextReader) 
        {
            Console.WriteLine(
                "is: someObject is a TextReader or a derived class");
        }

    }
}

is: someObject is a TextReader or a derived class