How to create a Subdirectory in C#

To maintain or store files on our systems, we may need to create subdirectory within a directory. Now,let's see how to create a sub directory within an existing directory. Perform the following steps to create a subdirectory within an existing directory.

Complete code of How to create sub directory 

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;

namespace WindowsFormsApplication2
{
    public partial class Form5 : Form
    {
        public Form5()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            string dirpath = textBox1.Text;
            DirectoryInfo dirinfo = new DirectoryInfo(dirpath);
            string newsub = textBox2.Text;
            dirinfo.CreateSubdirectory(newsub);
            label3.Text = "your subdirectory " + newsub + " is created  at " + dirpath;


        }
    }
}

Output