Filhåndtering

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;


//C:\Users\mick\Desktop

namespace WindowsFormsApplication69
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void btnSkriv_Click(object sender, EventArgs e)
        {
            string file_name = txtFileName.Text;

            System.IO.StreamWriter objWriter = new System.IO.StreamWriter(file_name);

            objWriter.Write(txtText.Text);
            //objWriter.Close();
        }

        private void btnLæs_Click(object sender, EventArgs e)
        {
            string file_name = txtFileName.Text;

            System.IO.StreamReader objReader = new System.IO.StreamReader(file_name);

            txtText.Text = objReader.ReadToEnd();
            objReader.Close();
        }

        private void btnClear_Click(object sender, EventArgs e)
        {
            txtText.Clear();
        }
    }
}