Use the 'as' operator to perform a safe cast : as « Operator « C# / CSharp Tutorial

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

using System;
using System.IO;

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

        
        StringReader reader = someObject as StringReader;
        if (reader != null) 
        {
            Console.WriteLine("as: someObject is a StringReader");
        }
    }
}

as: someObject is a StringReader