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

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C# / CSharp Tutorial » Operator » is

3.12.5.Test if someObject is, or is derived from, a TextReader using the is operator

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

3.12.is
	3.12.1.	Type operators: Is
	3.12.2.	is operator in class hiearchy
	3.12.3.	Use 'is' to avoid an invalid cast.
	3.12.4.	Working with Interfaces: is operator
	3.12.5.	Test if someObject is, or is derived from, a TextReader using the is operator
	3.12.6.	'is' operator for value data type: int, long and float
	3.12.7.	Use is in Console.WriteLine

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