Use Of C# TypeOf Operator

In C#, types are inherited from the System.Type. The C# typeof operator gets the System.Type of a type. This code sample shows the use case of typeof operator using C#.

 

 

The typeof operator syntax,

System.Type type = typeof(type);

The following code sample uses the typeof operator to get the type of various types.

Type tp = typeof(int);
Console.WriteLine($"typeof {tp}");
Console.WriteLine(typeof(String));
Console.WriteLine(typeof(Double));

The GetType() method is used to get the Type of an object or expression at runtime.

// Get type of a variable
string name = "Mahesh Chand";
Type namenameType = name.GetType();
Console.WriteLine(nameType);

You can also get a type of a class (object), its methods, properties, and other members.

 

The following code snippet returns a type of the Author object. 

// Get a typeof a class
Console.WriteLine(typeof(Author));

Complete code sample,

using System;

namespace typeofOperatorSample
{
    class Program
    {
        static void Main(string[] args)
        {
            Type tp = typeof(int);
            Console.WriteLine($"typeof {tp}");
            Console.WriteLine(typeof(String));
            Console.WriteLine(typeof(Double));

            // Get type of a variable
            string name = "Mahesh Chand";
            Type namenameType = name.GetType();
            Console.WriteLine(nameType);

            // Get a typeof a class
            Console.WriteLine(typeof(Author));

            Console.ReadKey();
        }
    }

    public class Author
    {
        public Author() { }
    }
}

The output of the above code generates the following output.

 

 

Next > Here is an article on the Difference between the typeof Operator and GetType() Method.